Fixed demo

Removes 2 more built-in procedures!

.gitignore

@@ -251,6 +251,13 @@ paket-files/
 
 
 # Project Specific
+
+# - Windows
 *.sln
 builds/
 bin/
+*.exe
+
+# - Linux/MacOS
+odin
+odin.dSYM

README.md

@@ -8,7 +8,8 @@ The Odin programming language is fast, concise, readable, pragmatic and open sou
 * built for modern systems
 * joy of programming
 * metaprogramming
-* designed for good programmers
+
+Website: [https://odin.handmade.network/](https://odin.handmade.network/)
 
 ## Demonstrations:
 * First Talk & Demo
@@ -18,16 +19,29 @@ The Odin programming language is fast, concise, readable, pragmatic and open sou
 * [Composition & Refactorability](https://www.youtube.com/watch?v=n1wemZfcbXM)
 * [Introspection, Modules, and Record Layout](https://www.youtube.com/watch?v=UFq8rhWhx4s)
 * [push_allocator & Minimal Dependency Building](https://www.youtube.com/watch?v=f_LGVOAMb78)
-* [when, for, & procedure overloading](https://www.youtube.com/watch?v=OzeOekzyZK8)
+* [when, for & procedure overloading](https://www.youtube.com/watch?v=OzeOekzyZK8)
+* [Context Types, Unexported Entities, Labelled Branches](https://www.youtube.com/watch?v=CkHVwT1Qk-g)
+* [Bit Fields, i128 & u128, Syntax Changes](https://www.youtube.com/watch?v=NlTutcLyF64)
 
 ## Requirements to build and run
 
-* Windows
-* x86-64
-* MSVC 2015 installed (C99 support)
-* Requires MSVC's link.exe as the linker
-	- run `vcvarsall.bat` to setup the path
-* [LLVM binaries](https://github.com/gingerBill/Odin/releases/tag/llvm-4.0-windows) for `opt.exe` and `llc.exe`
+- Windows
+	* x86-64
+	* MSVC 2015 installed (C++11 support)
+	* [LLVM binaries](https://github.com/gingerBill/Odin/releases/tag/llvm-4.0-windows) for `opt.exe` and `llc.exe`
+	* Requires MSVC's link.exe as the linker
+		* run `vcvarsall.bat` to setup the path
+
+- MacOS
+	* x86-64
+	* LLVM explicitly installed (`brew install llvm`)
+	* XCode installed (for the linker)
+
+- GNU/Linux
+	* x86-64
+	* Build tools (ld)
+	* LLVM installed
+	* Clang installed (temporary - this is Calling the linker for now)
 
 ## Warnings
 

build.bat

@@ -4,8 +4,8 @@
 set exe_name=odin.exe
 
 :: Debug = 0, Release = 1
-set release_mode=1
-set compiler_flags= -nologo -Oi -TC -fp:fast -fp:except- -Gm- -MP -FC -GS- -EHsc- -GR-
+set release_mode=0
+set compiler_flags= -nologo -Oi -TP -fp:fast -fp:except- -Gm- -MP -FC -GS- -EHsc- -GR-
 
 if %release_mode% EQU 0 ( rem Debug
 	set compiler_flags=%compiler_flags% -Od -MDd -Z7
@@ -42,12 +42,10 @@ set linker_settings=%libs% %linker_flags%
 del *.pdb > NUL 2> NUL
 del *.ilk > NUL 2> NUL
 
-cl %compiler_settings% "src\main.c" ^
+cl %compiler_settings% "src\main.cpp" ^
 	/link %linker_settings% -OUT:%exe_name% ^
-	&& odin run code/demo.odin
-	rem && odin build code/metagen.odin ^
-	rem && call "code\metagen.exe" "src\ast_nodes.metagen"
-	rem && odin run code/Jaze/src/main.odin
+	&& odin run code/demo.odin -opt=0
+	rem && odin docs core/fmt.odin
 
 del *.obj > NUL 2> NUL
 

build.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+release_mode=0
+
+warnings_to_disable="-std=c++11 -g -Wno-switch -Wno-pointer-sign -Wno-tautological-constant-out-of-range-compare -Wno-tautological-compare -Wno-macro-redefined -Wno-writable-strings"
+libraries="-pthread -ldl -lm -lstdc++"
+other_args=""
+compiler="clang"
+
+if [ "$release_mode" -eq "0" ]; then
+	other_args="${other_args} -g -fno-inline-functions"
+fi
+if [[ "$(uname)" == "Darwin" ]]; then
+
+	# Set compiler to clang on MacOS
+	# MacOS provides a symlink to clang called gcc, but it's nice to be explicit here.
+	compiler="clang"
+
+	other_args="${other_args} -liconv"
+fi
+
+${compiler} src/main.cpp ${warnings_to_disable} ${libraries} ${other_args} -o odin
+
+./odin run code/demo.odin

code/demo.odin

@@ -1,320 +1,433 @@
-#import "atomic.odin";
-#import "hash.odin";
-#import "mem.odin";
-#import "opengl.odin";
-#import "strconv.odin";
-#import "sync.odin";
-#import win32 "sys/windows.odin";
+import "fmt.odin";
 
-#import "fmt.odin";
-#import "os.odin";
-#import "math.odin";
+proc general_stuff() {
+	// Complex numbers
+	var a = 3 + 4i;
+	var b: complex64 = 3 + 4i;
+	var c: complex128 = 3 + 4i;
+	var d = complex(2, 3);
+
+	var e = a / conj(a);
+	fmt.println("(3+4i)/(3-4i) =", e);
+	fmt.println(real(e), "+", imag(e), "i");
 
 
-main :: proc() {
-when true {
-/*
-	Added:
-		* Unexported entities and fields using an underscore prefix
-			- See `sync.odin` and explain
-
-	Removed:
-	 * Maybe/option types
-	 * Remove `type` keyword and other "reserved" keywords
-	 * ..< and ... removed and replace with .. (half-closed range)
-
-	Changed:
-	 * `compile_assert` and `assert`return the value of the condition for semantic reasons
-	 * thread_local -> #thread_local
-	 * #include -> #load
-	 * Files only get checked if they are actually used
-	 * match x in y {} // For type match statements
-	 * Version numbering now starts from 0.1.0 and uses the convention:
-	 	- major.minor.patch
-	 * Core library additions to Windows specific stuff
- */
-
-	{
-		Fruit :: enum {
-			APPLE,
-			BANANA,
-			COCONUT,
-		}
-		fmt.println(Fruit.names);
+	// C-style variadic procedures
+	foreign __llvm_core {
+		// The variadic part allows for extra type checking too which C does not provide
+		proc c_printf(fmt: ^u8, #c_vararg args: ..any) -> i32 #link_name "printf";
 	}
 
-	{
-		A :: struct           {x, y: f32};
-		B :: struct #align 16 {x, y: f32};
-		fmt.println("align_of(A) =", align_of(A));
-		fmt.println("align_of(B) =", align_of(B));
+
+	type Foo struct {
+		x: int,
+		y: f32,
+		z: string,
+	}
+	var foo = Foo{123, 0.513, "A string"};
+	var x, y, z = expand_to_tuple(foo);
+	fmt.println(x, y, z);
+
+
+	// By default, all variables are zeroed
+	// This can be overridden with the "uninitialized value"
+	// This is similar to `nil` but applied to everything
+	var undef_int: int = ---;
+
+
+	// Context system is now implemented using Implicit Parameter Passing (IPP)
+	// The previous implementation was Thread Local Storage (TLS)
+	// IPP has the advantage that it works on systems without TLS and that you can
+	// link the context to the stack frame and thus look at previous contexts
+	//
+	// It does mean that a pointer is implicitly passed procedures with the default
+	// Odin calling convention (#cc_odin)
+	// This can be overridden with something like #cc_contextless or #cc_c if performance
+	// is worried about
+
+}
+
+proc foreign_blocks() {
+	// See sys/windows.odin
+}
+
+
+proc default_arguments() {
+	proc hello(a: int = 9, b: int = 9) {
+		fmt.printf("a is %d; b is %d\n", a, b);
+	}
+	fmt.println("\nTesting default arguments:");
+	hello(1, 2);
+	hello(1);
+	hello();
+}
+
+proc named_arguments() {
+	type Colour enum {
+		Red,
+		Orange,
+		Yellow,
+		Green,
+		Blue,
+		Octarine,
+	};
+	using Colour;
+
+	proc make_character(name, catch_phrase: string, favorite_color, least_favorite_color: Colour) {
+	    fmt.println();
+	    fmt.printf("My name is %v and I like %v.  %v\n", name, favorite_color, catch_phrase);
 	}
 
-	{
-		// Removal of ..< and ...
-		for i in 0..16 {
-		}
-		// Is similar to
-		for _i := 0; _i < 16; _i++ { immutable i := _i;
-		}
+	make_character("Frank", "¡Ay, caramba!", Blue, Green);
+
+
+	// As the procedures have more and more parameters, it is very easy
+	// to get many of the arguments in the wrong order especialy if the
+	// types are the same
+	make_character("¡Ay, caramba!", "Frank", Green, Blue);
+
+	// Named arguments help to disambiguate this problem
+	make_character(catch_phrase = "¡Ay, caramba!", name = "Frank",
+	               least_favorite_color = Green, favorite_color = Blue);
+
+
+	// The named arguments can be specifed in any order.
+	make_character(favorite_color = Octarine, catch_phrase = "U wot m8!",
+	               least_favorite_color = Green, name = "Dennis");
+
+
+	// NOTE: You cannot mix named arguments with normal values
+	/*
+	make_character("Dennis",
+	               favorite_color = Octarine, catch_phrase = "U wot m8!",
+	               least_favorite_color = Green);
+	*/
+
+
+	// Named arguments can also aid with default arguments
+	proc numerous_things(s : string, a = 1, b = 2, c = 3.14,
+	                     d = "The Best String!", e = false, f = 10.3/3.1, g = false) {
+		var g_str = g ? "true" : "false";
+		fmt.printf("How many?! %s: %v\n", s, g_str);
 	}
 
-	{
-	#label thing
-		for i in 0..10 {
-			for j in i+1..10 {
-				if j == 2 {
-					fmt.println(i, j);
-					continue thing;
-				}
-				if j == 3 {
-					break thing;
-				}
-			}
-		}
+	numerous_things("First");
+	numerous_things(s = "Second", g = true);
 
-		// Works with, `for`, `for in`, `match`, `match in`
-		// NOTE(bill): This solves most of the problems I need `goto` for
+
+	// Default values can be placed anywhere, not just at the end like in other languages
+	proc weird(pre: string, mid: int = 0, post: string) {
+		fmt.println(pre, mid, post);
 	}
 
-	{
-		t := type_info(int);
-		using Type_Info;
-		match i in t {
-		case Integer, Float:
-			fmt.println("It's a number");
+	weird("How many things", 42, "huh?");
+	weird(pre = "Prefix", post = "Pat");
+
+}
+
+
+proc default_return_values() {
+	proc foo(x: int) -> (first: string = "Hellope", second = "world!") {
+		match x {
+		case 0: return;
+		case 1: return "Goodbye";
+		case 2: return "Goodbye", "cruel world...";
+		case 3: return second = "cruel world...", first = "Goodbye";
 		}
 
-
-		x: any = 123;
-	#label foo
-		match i in x {
-		case int, f32:
-			fmt.println("It's an int or f32");
-			break foo;
-		}
+		return second = "my old friend.";
 	}
 
-	{
-		cond := true;
-		x: int;
-		if cond {
-			x = 3;
-		} else {
-			x = 4;
+	fmt.printf("%s %s\n", foo(0));
+	fmt.printf("%s %s\n", foo(1));
+	fmt.printf("%s %s\n", foo(2));
+	fmt.printf("%s %s\n", foo(3));
+	fmt.printf("%s %s\n", foo(4));
+	fmt.println();
+
+
+	// A more "real" example
+	type Error enum {
+		None,
+		WhyTheNumberThree,
+		TenIsTooBig,
+	};
+
+	type Entity struct {
+		name: string,
+		id:   u32,
+	}
+
+	proc some_thing(input: int) -> (result: ^Entity = nil, err = Error.None) {
+		match {
+		case input == 3: return err = Error.WhyTheNumberThree;
+		case input >= 10: return err = Error.TenIsTooBig;
 		}
 
+		var e = new(Entity);
+		e.id = u32(input);
 
-		// Ternary operator
-		y := cond ? 3 : 4;
-
-		FOO :: true ? 123 : 432; // Constant ternary expression
-		fmt.println("Ternary values:", y, FOO);
+		return result = e;
 	}
+}
 
-	{
-		// Slices now store a capacity
-		buf: [256]byte;
-		s: []byte;
-		s = buf[..0]; // == buf[0..0];
-		fmt.println("count =", s.count);
-		fmt.println("capacity =", s.capacity);
-		append(s, 1, 2, 3);
-		fmt.println(s);
-
-		s = buf[1..2..3];
-		fmt.println("count =", s.count);
-		fmt.println("capacity =", s.capacity);
-		fmt.println(s);
-
-		clear(s); // Sets count to zero
-		s.count = 0; // Equivalent
-	}
-
-	{
-		Foo :: struct {
-			x, y, z: f32,
-			ok:      bool,
-			flags:   u32,
-		}
-		foo_array: [256]Foo;
-		foo_as_bytes: []byte = slice_to_bytes(foo_array[..]);
-		// Useful for things like
-		// os.write(handle, foo_as_bytes);
-
-		foo_slice := slice_ptr(cast(^Foo)foo_as_bytes.data, foo_as_bytes.count/size_of(Foo), foo_as_bytes.capacity/size_of(Foo));
-		// Question: Should there be a bytes_to_slice procedure or is it clearer to do this even if it is error prone?
-		// And if so what would the syntax be?
-		// slice_transmute([]Foo, foo_as_bytes);
-	}
-
-	{
-		Vec3 :: [vector 3]f32;
-
-		x := Vec3{1, 2, 3};
-		y := Vec3{4, 5, 6};
-		fmt.println(x < y);
-		fmt.println(x + y);
-		fmt.println(x - y);
-		fmt.println(x * y);
-		fmt.println(x / y);
-
-		for i in x {
-			fmt.println(i);
-		}
-
-		compile_assert(size_of([vector 7]bool) == size_of([7]bool));
-		compile_assert(size_of([vector 7]i32) == size_of([7]i32));
-		// align_of([vector 7]i32) != align_of([7]i32) // this may be the case
-	}
-
-	{
-		// fmt.* changes
-		// bprint* returns `int` (bytes written)
-		// sprint* returns `string` (bytes written as a string)
-
-		data: [256]byte;
-		str := fmt.sprintf(data[..0], "Hellope %d %s %c", 123, "others", '!');
-		fmt.println(str);
-
-		buf := data[..0];
-		count := fmt.bprintf(^buf, "Hellope %d %s %c", 123, "others", '!');
-		fmt.println(cast(string)buf[..count]);
-
-		// NOTE(bill): We may change this but because this is a library feature, I am not that bothered yet
-	}
-
-	{
-		x: [dynamic]f64;
-		reserve(x, 16);
-		defer free(x); // `free` is overloaded for numerous types
-		// Number literals can have underscores in them for readability
-		append(x, 2_000_000.500_000, 3, 5, 7); // variadic append
-
-		for p, i in x {
-			if i > 0 { fmt.print(", "); }
-			fmt.print(p);
-		}
+proc call_location() {
+	proc amazing(n: int, using loc = #caller_location) {
+		fmt.printf("%s(%d:%d) just asked to do something amazing.\n",
+		           fully_pathed_filename, line, column);
+		fmt.printf("Normal -> %d\n", n);
+		fmt.printf("Amazing -> %d\n", n+1);
 		fmt.println();
 	}
 
-	{
-		// Dynamic array "literals"
-		x := [dynamic]f64{2_000_000.500_000, 3, 5, 7};
-		defer free(x);
-		fmt.println(x); // fmt.print* supports printing of dynamic types
-		clear(x);
-		fmt.println(x);
-	}
+	var loc = #location(main);
+	fmt.println("`main` is located at", loc);
 
-	{
-		m: map[f32]int;
-		reserve(m, 16);
-		defer free(m);
+	fmt.println("This line is located at", #location());
+	fmt.println();
 
-		m[1.0] = 1278;
-		m[2.0] = 7643;
-		m[3.0] = 564;
-		_, ok := m[3.0];
-		c := m[3.0];
-		assert(ok && c == 564);
+	amazing(3);
+	amazing(4, #location(call_location));
 
-		fmt.print("map[");
-		i := 0;
-		for val, key in m {
-			if i > 0 {
-				fmt.print(", ");
-			}
-			fmt.printf("%v=%v", key, val);
-			i += 1;
-		}
-		fmt.println("]");
-	}
-	{
-		m := map[string]u32{
-			"a" = 56,
-			"b" = 13453,
-			"c" = 7654,
-		};
-		defer free(m);
+	// See _preload.odin for the implementations of `assert` and `panic`
 
-		c := m["c"];
-		_, ok := m["c"];
-		assert(ok && c == 7654);
-		fmt.println(m);
-
-		delete(m, "c"); // deletes entry with key "c"
-		_, found := m["c"];
-		assert(!found);
-
-		fmt.println(m);
-		clear(m);
-		fmt.println(m);
-
-		// NOTE: Fixed size maps are planned but we have not yet implemented
-		// them as we have had no need for them as of yet
-	}
-
-	{
-		Vector3 :: struct{x, y, z: f32};
-		Quaternion :: struct{x, y, z, w: f32};
-
-		Entity :: union {
-			// Common Fields
-			id:             u64,
-			name:           string,
-			using position: Vector3,
-			orientation:    Quaternion,
-			flags:          u32,
-
-			// Variants
-			Frog{
-				ribbit_volume: f32,
-				jump_height:   f32,
-			},
-			Door{
-				openness: f32,
-			},
-			Map{
-				width, height:   f32,
-				place_positions: []Vector3,
-				place_names:     []string,
-			},
-		}
-
-		entity: Entity;
-		// implicit conversion from variant to base type
-		entity = Entity.Frog{
-			id = 1337,
-			ribbit_volume = 0.5,
-			jump_height = 2.1,
-			/*other data */
-		};
-
-		entity.name = "Frank";
-		entity.position = Vector3{1, 4, 9};
-
-		using Entity;
-		match e in entity {
-		case Frog:
-			fmt.println("Ribbit");
-		case Door:
-			fmt.println("Creak");
-		case Map:
-			fmt.println("Rustle");
-		default:
-			fmt.println("Just a normal entity");
-		}
-
-		if frog, ok := union_cast(Frog)entity; ok {
-			fmt.printf("The frog jumps %f feet high at %v\n", frog.jump_height, frog.position);
-		}
-
-		// Panics if not the correct type
-		frog: Frog;
-		frog = union_cast(Frog)entity;
-		frog, _ = union_cast(Frog)entity; // ignore error and force cast
-	}
-}
 }
 
+
+proc explicit_parametric_polymorphic_procedures() {
+	// This is how `new` is actually implemented, see _preload.odin
+	proc alloc_type(T: type) -> ^T {
+		return ^T(alloc(size_of(T), align_of(T)));
+	}
+
+	var int_ptr = alloc_type(int);
+	defer free(int_ptr);
+	int_ptr^ = 137;
+	fmt.println(int_ptr, int_ptr^);
+
+	// Named arguments work too!
+	var another_ptr = alloc_type(T = f32);
+	defer free(another_ptr);
+
+
+	proc add(T: type, args: ..T) -> T {
+		var res: T;
+		for arg in args {
+			res += arg;
+		}
+		return res;
+	}
+
+	fmt.println("add =", add(int, 1, 2, 3, 4, 5, 6));
+
+	proc swap(T: type, a, b: ^T) {
+		var tmp = a^;
+		a^ = b^;
+		b^ = tmp;
+	}
+
+	var a, b: int = 3, 4;
+	fmt.println("Pre-swap:", a, b);
+	swap(int, &a, &b);
+	fmt.println("Post-swap:", a, b);
+	a, b = b, a; // Or use this syntax for this silly example case
+
+
+
+
+
+
+	// A more complicated example using subtyping
+	// Something like this could be used in a game
+	type Vector2 struct {x, y: f32};
+
+	type Entity struct {
+		using position: Vector2,
+		flags:          u64,
+		id:             u64,
+		batch_index:    u32,
+		slot_index:     u32,
+		portable_id:    u32,
+		derived:        any,
+	}
+
+	type Rock struct {
+		using entity: ^Entity,
+		heavy: bool,
+	}
+	type Door struct {
+		using entity: ^Entity,
+		open:         bool,
+	}
+	type Monster struct {
+		using entity: ^Entity,
+		is_robot:     bool,
+		is_zombie:    bool,
+	}
+
+	type EntityManager struct {
+		batches: [dynamic]^EntityBatch,
+		next_portable_id: u32,
+	}
+
+	const ENTITIES_PER_BATCH = 16;
+	type EntityBatch struct {
+		data:        [ENTITIES_PER_BATCH]Entity,
+		occupied:    [ENTITIES_PER_BATCH]bool,
+		batch_index: u32,
+	}
+
+	proc use_empty_slot(manager: ^EntityManager, batch: ^EntityBatch) -> ^Entity {
+		for ok, i in batch.occupied {
+			if ok -> continue;
+			batch.occupied[i] = true;
+
+			var e = &batch.data[i];
+			e.batch_index = u32(batch.batch_index);
+			e.slot_index  = u32(i);
+			e.portable_id = manager.next_portable_id;
+			manager.next_portable_id++;
+			return e;
+		}
+		return nil;
+	}
+
+	proc gen_new_entity(manager: ^EntityManager) -> ^Entity {
+		for b in manager.batches {
+			var e = use_empty_slot(manager, b);
+			if e != nil -> return e;
+		}
+
+		var new_batch = new(EntityBatch);
+		append(manager.batches, new_batch);
+		new_batch.batch_index = u32(len(manager.batches)-1);
+
+		return use_empty_slot(manager, new_batch);
+	}
+
+
+
+	proc new_entity(manager: ^EntityManager, Type: type, x, y: int) -> ^Type {
+		var result = new(Type);
+		result.entity = gen_new_entity(manager);
+		result.derived.data = result;
+		result.derived.type_info = type_info(Type);
+
+		result.position.x = f32(x);
+		result.position.y = f32(y);
+
+		return result;
+	}
+
+	var manager: EntityManager;
+	var entities: [dynamic]^Entity;
+
+	var rock    = new_entity(&manager, Rock, 3, 5);
+
+	// Named arguments work too!
+	var door    = new_entity(manager = &manager, Type = Door, x = 3, y = 6);
+
+	// And named arguments can be any order
+	var monster = new_entity(
+		y = 1,
+		x = 2,
+		manager = &manager,
+		Type = Monster,
+	);
+
+	append(entities, rock, door, monster);
+
+	// An alternative to `union`s
+	for entity in entities {
+		match e in entity.derived {
+		case Rock:    fmt.println("Rock",    e.portable_id);
+		case Door:    fmt.println("Door",    e.portable_id);
+		case Monster: fmt.println("Monster", e.portable_id);
+		}
+	}
+}
+
+proc main() {
+	general_stuff();
+	foreign_blocks();
+	default_arguments();
+	named_arguments();
+	default_return_values();
+	call_location();
+	explicit_parametric_polymorphic_procedures();
+
+	// Command line argument(s)!
+	// -opt=0,1,2,3
+
+
+	/*************/
+	/* Questions */
+	/*************/
+
+	/*
+		I'm questioning if I should change the declaration syntax back to Jai-like
+		as I've found solutions to the problems I had with it before.
+
+		Should I change back to Jai-like declarations or keep with the Pascal-like?
+
+		Jai-like
+
+		x: int;
+		x: int = 123;
+		x := 123;
+
+		foo : int : 123;
+		foo :: 123;
+
+		MyInt :: int;
+		BarType :: proc();
+
+		bar :: proc() {
+		}
+
+		foreign lib {
+			foreign_bar :: proc() ---;
+		}
+
+		Pascal-like
+
+		var x: int;
+		var x: int = 123;
+		var x = 123;
+
+		const foo: int = 123;
+		const foo = 123;
+
+		type MyInt int;
+		type BarType proc();
+
+		proc bar() {
+		}
+
+		foreign lib {
+			proc foreign_bar();
+		}
+	 */
+
+}
+
+/*
+proc main() {
+	var program = "+ + * - /";
+	var accumulator = 0;
+
+	for token in program {
+		match token {
+		case '+': accumulator += 1;
+		case '-': accumulator -= 1;
+		case '*': accumulator *= 2;
+		case '/': accumulator /= 2;
+		case: // Ignore everything else
+		}
+	}
+
+	fmt.printf("The program \"%s\" calculates the value %d\n",
+	           program, accumulator);
+}
+*/
+

code/game.odin

@@ -1,91 +1,91 @@
-#import "win32.odin" when ODIN_OS == "windows";
-#import "fmt.odin";
-#import "math.odin";
-#import "os.odin";
-#import gl "opengl.odin";
+import win32 "sys/windows.odin" when ODIN_OS == "windows";
+import wgl "sys/wgl.odin" when ODIN_OS == "windows";
+import "fmt.odin";
+import "math.odin";
+import "os.odin";
+import gl "opengl.odin";
 
-TWO_HEARTS :: '💕';
+const TWO_HEARTS = '💕';
 
-win32_perf_count_freq := win32.GetQueryPerformanceFrequency();
-time_now :: proc() -> f64 {
+var win32_perf_count_freq = win32.get_query_performance_frequency();
+proc time_now() -> f64 {
 	assert(win32_perf_count_freq != 0);
 
-	counter: i64;
-	win32.QueryPerformanceCounter(^counter);
-	result := counter as f64 / win32_perf_count_freq as f64;
-	return result;
+	var counter: i64;
+	win32.query_performance_counter(&counter);
+	return f64(counter) / f64(win32_perf_count_freq);
 }
-win32_print_last_error :: proc() {
-	err_code := win32.GetLastError() as int;
+proc win32_print_last_error() {
+	var err_code = win32.get_last_error();
 	if err_code != 0 {
-		fmt.println("GetLastError: %", err_code);
+		fmt.println("get_last_error: ", err_code);
 	}
 }
 
 // Yuk!
-to_c_string :: proc(s: string) -> []u8 {
-	c_str := new_slice(u8, s.count+1);
-	copy(c_str, s as []byte);
-	c_str[s.count] = 0;
+proc to_c_string(s: string) -> []u8 {
+	var c_str = make([]u8, len(s)+1);
+	copy(c_str, []u8(s));
+	c_str[len(s)] = 0;
 	return c_str;
 }
 
 
-Window :: struct {
-	width, height:      int;
-	wc:                 win32.WNDCLASSEXA;
-	dc:                 win32.HDC;
-	hwnd:               win32.HWND;
-	opengl_context, rc: win32.HGLRC;
-	c_title:            []u8;
+type Window struct {
+	width, height:      int,
+	wc:                 win32.WndClassExA,
+	dc:                 win32.Hdc,
+	hwnd:               win32.Hwnd,
+	opengl_context, rc: wgl.Hglrc,
+	c_title:            []u8,
 }
 
-make_window :: proc(title: string, msg, height: int, window_proc: win32.WNDPROC) -> (Window, bool) {
+proc make_window(title: string, msg, height: int, window_proc: win32.WndProc) -> (Window, bool) {
 	using win32;
 
-	w: Window;
+	var w: Window;
 	w.width, w.height = msg, height;
 
-	class_name := "Win32-Odin-Window\x00";
-	c_class_name := class_name.data;
-	if title[title.count-1] != 0 {
+	var class_name = "Win32-Odin-Window\x00";
+	var c_class_name = &class_name[0];
+	if title[len(title)-1] != 0 {
 		w.c_title = to_c_string(title);
 	} else {
-		w.c_title = title as []u8;
+		w.c_title = []u8(title);
 	}
 
-	instance := GetModuleHandleA(nil);
+	var instance = get_module_handle_a(nil);
 
-	w.wc = WNDCLASSEXA{
-		size       = size_of(WNDCLASSEXA) as u32,
+	w.wc = WndClassExA{
+		size       = size_of(WndClassExA),
 		style      = CS_VREDRAW | CS_HREDRAW,
-		instance   = instance as HINSTANCE,
+		instance   = Hinstance(instance),
 		class_name = c_class_name,
 		wnd_proc   = window_proc,
 	};
 
-	if RegisterClassExA(^w.wc) == 0 {
+	if register_class_ex_a(&w.wc) == 0 {
 		win32_print_last_error();
 		return w, false;
 	}
 
-	w.hwnd = CreateWindowExA(0,
-	                         c_class_name, w.c_title.data,
-	                         WS_VISIBLE | WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX,
-	                         CW_USEDEFAULT, CW_USEDEFAULT,
-	                         w.width as i32, w.height as i32,
-	                         nil, nil, instance, nil);
+	w.hwnd = create_window_ex_a(0,
+	                            c_class_name, &w.c_title[0],
+	                            WS_VISIBLE | WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX,
+	                            CW_USEDEFAULT, CW_USEDEFAULT,
+	                            i32(w.width), i32(w.height),
+	                            nil, nil, instance, nil);
 
 	if w.hwnd == nil {
 		win32_print_last_error();
 		return w, false;
 	}
 
-	w.dc = GetDC(w.hwnd);
+	w.dc = get_dc(w.hwnd);
 
 	{
-		pfd := PIXELFORMATDESCRIPTOR{
-			size         = size_of(PIXELFORMATDESCRIPTOR) as u32,
+		var pfd = PixelFormatDescriptor{
+			size         = size_of(PixelFormatDescriptor),
 			version      = 1,
 			flags        = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER,
 			pixel_type   = PFD_TYPE_RGBA,
@@ -96,89 +96,91 @@ make_window :: proc(title: string, msg, height: int, window_proc: win32.WNDPROC)
 			layer_type   = PFD_MAIN_PLANE,
 		};
 
-		SetPixelFormat(w.dc, ChoosePixelFormat(w.dc, ^pfd), nil);
-		w.opengl_context = wglCreateContext(w.dc);
-		wglMakeCurrent(w.dc, w.opengl_context);
+		set_pixel_format(w.dc, choose_pixel_format(w.dc, &pfd), nil);
+		w.opengl_context = wgl.create_context(w.dc);
+		wgl.make_current(w.dc, w.opengl_context);
 
-		attribs := [8]i32{
-			WGL_CONTEXT_MAJOR_VERSION_ARB, 2,
-			WGL_CONTEXT_MINOR_VERSION_ARB, 1,
-			WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
+		var attribs = [8]i32{
+			wgl.CONTEXT_MAJOR_VERSION_ARB, 2,
+			wgl.CONTEXT_MINOR_VERSION_ARB, 1,
+			wgl.CONTEXT_PROFILE_MASK_ARB, wgl.CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
 			0, // NOTE(bill): tells the proc that this is the end of attribs
 		};
 
-		wglCreateContextAttribsARB := wglGetProcAddress(("wglCreateContextAttribsARB\x00" as string).data) as wglCreateContextAttribsARBType;
-		w.rc = wglCreateContextAttribsARB(w.dc, 0, ^attribs[0]);
-		wglMakeCurrent(w.dc, w.rc);
-		SwapBuffers(w.dc);
+		var wgl_str = "wglCreateContextAttribsARB\x00";
+		var wglCreateContextAttribsARB = wgl.CreateContextAttribsARBType(wgl.get_proc_address(&wgl_str[0]));
+		w.rc = wglCreateContextAttribsARB(w.dc, nil, &attribs[0]);
+		wgl.make_current(w.dc, w.rc);
+		swap_buffers(w.dc);
 	}
 
 	return w, true;
 }
 
-destroy_window :: proc(w: ^Window) {
-	free(w.c_title.data);
+proc destroy_window(w: ^Window) {
+	free(w.c_title);
 }
 
-display_window :: proc(w: ^Window) {
-	win32.SwapBuffers(w.dc);
+proc display_window(w: ^Window) {
+	win32.swap_buffers(w.dc);
 }
 
 
-run :: proc() {
-	using win32;
+proc run() {
 	using math;
 
-	win32_proc :: proc(hwnd: HWND, msg: u32, wparam: WPARAM, lparam: LPARAM) -> LRESULT #no_inline {
+	proc win32_proc(hwnd: win32.Hwnd, msg: u32, wparam: win32.Wparam, lparam: win32.Lparam) -> win32.Lresult #no_inline {
+		using win32;
 		if msg == WM_DESTROY || msg == WM_CLOSE || msg == WM_QUIT {
 			os.exit(0);
 			return 0;
 		}
-		return DefWindowProcA(hwnd, msg, wparam, lparam);
+		return def_window_proc_a(hwnd, msg, wparam, lparam);
 	}
 
-	window, window_success := make_window("Odin Language Demo", 854, 480, win32_proc);
+	var window, window_success = make_window("Odin Language Demo", 854, 480, win32.WndProc(win32_proc));
 	if !window_success {
 		return;
 	}
-	defer destroy_window(^window);
+	defer destroy_window(&window);
 
 	gl.init();
 
+	using win32;
 
-	prev_time := time_now();
-	running := true;
+	var prev_time = time_now();
+	var running = true;
 
-	pos := Vec2{100, 100};
+	var pos = Vec2{100, 100};
 
 	for running {
-		curr_time := time_now();
-		dt := (curr_time - prev_time) as f32;
+		var curr_time = time_now();
+		var dt = f32(curr_time - prev_time);
 		prev_time = curr_time;
 
-		msg: MSG;
-		for PeekMessageA(^msg, nil, 0, 0, PM_REMOVE) > 0 {
+		var msg: Msg;
+		for peek_message_a(&msg, nil, 0, 0, PM_REMOVE) > 0 {
 			if msg.message == WM_QUIT {
 				running = false;
 			}
-			TranslateMessage(^msg);
-			DispatchMessageA(^msg);
+			translate_message(&msg);
+			dispatch_message_a(&msg);
 		}
 
-		if is_key_down(Key_Code.ESCAPE) {
+		if is_key_down(KeyCode.Escape) {
 			running = false;
 		}
 
 		{
-			SPEED :: 500;
-			v: Vec2;
+			const SPEED = 500;
+			var v: Vec2;
 
-			if is_key_down(Key_Code.RIGHT) { v[0] += 1; }
-			if is_key_down(Key_Code.LEFT)  { v[0] -= 1; }
-			if is_key_down(Key_Code.UP)    { v[1] += 1; }
-			if is_key_down(Key_Code.DOWN)  { v[1] -= 1; }
+			if is_key_down(KeyCode.Right) { v[0] += 1; }
+			if is_key_down(KeyCode.Left)  { v[0] -= 1; }
+			if is_key_down(KeyCode.Up)    { v[1] += 1; }
+			if is_key_down(KeyCode.Down)  { v[1] -= 1; }
 
-			v = vec2_norm0(v);
+			v = norm(v);
 
 			pos += v * Vec2{SPEED * dt};
 		}
@@ -188,10 +190,10 @@ run :: proc() {
 		gl.Clear(gl.COLOR_BUFFER_BIT);
 
 		gl.LoadIdentity();
-		gl.Ortho(0, window.width as f64,
-		         0, window.height as f64, 0, 1);
+		gl.Ortho(0, f64(window.width),
+		         0, f64(window.height), 0, 1);
 
-		draw_rect :: proc(x, y, w, h: f32) {
+		proc draw_rect(x, y, w, h: f32) {
 			gl.Begin(gl.TRIANGLES);
 			defer gl.End();
 
@@ -206,10 +208,15 @@ run :: proc() {
 
 		draw_rect(pos.x, pos.y, 50, 50);
 
-		display_window(^window);
-		ms_to_sleep := (16 - 1000*dt) as i32;
+		display_window(&window);
+		var ms_to_sleep = i32(16 - 1000*dt);
 		if ms_to_sleep > 0 {
-			win32.Sleep(ms_to_sleep);
+			win32.sleep(ms_to_sleep);
 		}
 	}
 }
+
+
+proc main() {
+	run();
+}

code/http_test.odin

@@ -1,12 +1,12 @@
-#import "fmt.odin";
+import "fmt.odin";
 
-#foreign_system_library ws2 "Ws2_32.lib" when ODIN_OS == "windows";
+foreign_system_library ws2 "Ws2_32.lib" when ODIN_OS == "windows";
 
 
-SOCKET :: #type uint;
-INVALID_SOCKET :: ~(cast(SOCKET)0);
+type SOCKET uint;
+const INVALID_SOCKET = ~SOCKET(0);
 
-AF :: enum i32 {
+type AF enum i32 {
 	UNSPEC    = 0,       // unspecified
 	UNIX      = 1,       // local to host (pipes, portals)
 	INET      = 2,       // internetwork: UDP, TCP, etc.
@@ -37,19 +37,22 @@ AF :: enum i32 {
 	MAX       = 26,
 };
 
-SOCK_STREAM  :: 1;
-SOCKET_ERROR :: -1;
-IPPROTO_TCP  :: 6;
-AI_PASSIVE   :: 0x0020;
-SOMAXCONN    :: 128;
+const (
+	SOCK_STREAM  = 1;
+	SOCKET_ERROR = -1;
+	IPPROTO_TCP  = 6;
+	AI_PASSIVE   = 0x0020;
+	SOMAXCONN    = 128;
+)
+const (
+	SD_RECEIVE = 0;
+	SD_SEND    = 1;
+	SD_BOTH    = 2;
+)
 
-SD_RECEIVE :: 0;
-SD_SEND    :: 1;
-SD_BOTH    :: 2;
-
-WSADESCRIPTION_LEN :: 256;
-WSASYS_STATUS_LEN  :: 128;
-WSADATA :: struct #ordered {
+const WSADESCRIPTION_LEN = 256;
+const WSASYS_STATUS_LEN  = 128;
+type WSADATA struct #ordered {
 	version:       i16,
 	high_version:  i16,
 
@@ -57,12 +60,12 @@ WSADATA :: struct #ordered {
 // NOTE(bill): This is x64 ordering
 	max_sockets:   u16,
 	max_udp_dg:    u16,
-	vendor_info:   ^byte,
-	description:   [WSADESCRIPTION_LEN+1]byte,
-	system_status: [WSASYS_STATUS_LEN+1]byte,
+	vendor_info:   ^u8,
+	description:   [WSADESCRIPTION_LEN+1]u8,
+	system_status: [WSASYS_STATUS_LEN+1]u8,
 }
 
-addrinfo :: struct #ordered {
+type addrinfo struct #ordered {
 	flags:     i32,
 	family:    i32,
 	socktype:  i32,
@@ -73,52 +76,53 @@ addrinfo :: struct #ordered {
 	next:      ^addrinfo,
 }
 
-sockaddr :: struct #ordered {
+type sockaddr struct #ordered {
 	family: u16,
-	data:   [14]byte,
+	data:   [14]u8,
 }
 
-
-WSAStartup      :: proc(version_requested: i16, data: ^WSADATA) -> i32                             #foreign ws2;
-WSACleanup      :: proc() -> i32                                                                   #foreign ws2;
-getaddrinfo     :: proc(node_name, service_name: ^u8, hints: ^addrinfo, result: ^^addrinfo) -> i32 #foreign ws2;
-freeaddrinfo    :: proc(ai: ^addrinfo)                                                             #foreign ws2;
-socket          :: proc(af, type_, protocol: i32) -> SOCKET                                        #foreign ws2;
-closesocket     :: proc(s: SOCKET) -> i32                                                          #foreign ws2;
-bind            :: proc(s: SOCKET, name: ^sockaddr, name_len: i32) -> i32                          #foreign ws2;
-listen          :: proc(s: SOCKET, back_log: i32) -> i32                                           #foreign ws2;
-accept          :: proc(s: SOCKET, addr: ^sockaddr, addr_len: i32) -> SOCKET                       #foreign ws2;
-recv            :: proc(s: SOCKET, buf: ^byte, len: i32, flags: i32) -> i32                        #foreign ws2;
-send            :: proc(s: SOCKET, buf: ^byte, len: i32, flags: i32) -> i32                        #foreign ws2;
-shutdown        :: proc(s: SOCKET, how: i32) -> i32                                                #foreign ws2;
-WSAGetLastError :: proc() -> i32                                                                   #foreign ws2;
-
-to_c_string :: proc(s: string) -> ^byte {
-	c_str := new_slice(byte, s.count+1);
-	assert(c_str.data != nil);
-	copy(c_str, cast([]byte)s);
-	c_str[s.count] = 0;
-	return c_str.data;
+foreign ws2 {
+	proc WSAStartup     (version_requested: i16, data: ^WSADATA) -> i32;
+	proc WSACleanup     () -> i32;
+	proc getaddrinfo    (node_name, service_name: ^u8, hints: ^addrinfo, result: ^^addrinfo) -> i32;
+	proc freeaddrinfo   (ai: ^addrinfo);
+	proc socket         (af, type_, protocol: i32) -> SOCKET;
+	proc closesocket    (s: SOCKET) -> i32;
+	proc bind           (s: SOCKET, name: ^sockaddr, name_len: i32) -> i32;
+	proc listen         (s: SOCKET, back_log: i32) -> i32;
+	proc accept         (s: SOCKET, addr: ^sockaddr, addr_len: i32) -> SOCKET;
+	proc recv           (s: SOCKET, buf: ^u8, len: i32, flags: i32) -> i32;
+	proc send           (s: SOCKET, buf: ^u8, len: i32, flags: i32) -> i32;
+	proc shutdown       (s: SOCKET, how: i32) -> i32;
+	proc WSAGetLastError() -> i32;
+}
+proc to_c_string(s: string) -> ^u8 {
+	var c_str = make([]u8, len(s)+1);
+	copy(c_str, []u8(s));
+	c_str[len(s)] = 0;
+	return &c_str[0];
 }
 
-run :: proc() {
-	wsa: WSADATA;
-	res:  ^addrinfo = nil;
-	hints: addrinfo;
-	s, client: SOCKET;
+proc run() {
+	var (
+		wsa: WSADATA;
+		res:  ^addrinfo = nil;
+		hints: addrinfo;
+		s, client: SOCKET;
+	)
 
-	if WSAStartup(2 | (2 << 8), ^wsa) != 0 {
+	if WSAStartup(2 | (2 << 8), &wsa) != 0 {
 		fmt.println("WSAStartup failed: ", WSAGetLastError());
 		return;
 	}
 	defer WSACleanup();
 
-	hints.family   = cast(i32)AF.INET;
+	hints.family   = i32(AF.INET);
 	hints.socktype = SOCK_STREAM;
 	hints.protocol = IPPROTO_TCP;
 	hints.flags    = AI_PASSIVE;
 
-	if getaddrinfo(nil, to_c_string("8080"), ^hints, ^res) != 0 {
+	if getaddrinfo(nil, to_c_string("8080"), &hints, &res) != 0 {
 		fmt.println("getaddrinfo failed: ", WSAGetLastError());
 		return;
 	}
@@ -131,7 +135,7 @@ run :: proc() {
 	}
 	defer closesocket(s);
 
-	bind(s, res.addr, cast(i32)res.addrlen);
+	bind(s, res.addr, i32(res.addrlen));
 	listen(s, SOMAXCONN);
 
 	client = accept(s, nil, 0);
@@ -141,7 +145,7 @@ run :: proc() {
 	}
 	defer closesocket(client);
 
-	html :=
+	var html =
 `HTTP/1.1 200 OK
 Connection: close
 Content-type: text/html
@@ -156,12 +160,12 @@ Content-type: text/html
 </html>
 `;
 
-	buf: [1024]byte;
+	var buf: [1024]u8;
 	for {
-		bytes := recv(client, ^buf[0], cast(i32)buf.count, 0);
+		var bytes = recv(client, &buf[0], i32(len(buf)), 0);
 		if bytes > 0 {
-			// fmt.println(buf[:bytes] as string)
-			bytes_sent := send(client, html.data, cast(i32)(html.count-1), 0);
+			// fmt.println(string(buf[0..<bytes]))
+			var bytes_sent = send(client, &html[0], i32(len(html)-1), 0);
 			if bytes_sent == SOCKET_ERROR {
 				fmt.println("send failed: ", WSAGetLastError());
 				return;

code/old_demos/demo001.odin

@@ -136,7 +136,7 @@ bounds_checking :: proc() {
 
 	{
 		base: [10]int;
-		s := base[2:6];
+		s := base[2..6];
 		a, b := -1, 6;
 
 		#no_bounds_check {
@@ -164,7 +164,7 @@ type_introspection :: proc() {
 		info = type_info_of_val(x); // by value
 		// See: runtime.odin
 
-		match type i in info {
+		match i in info {
 		case Type_Info.Integer:
 			fmt.println("integer!");
 		case Type_Info.Float:
@@ -174,7 +174,7 @@ type_introspection :: proc() {
 		}
 
 		// Unsafe cast
-		integer_info := cast(^Type_Info.Integer)info;
+		integer_info := cast(^Type_Info.Integer)cast(rawptr)info;
 	}
 
 	{
@@ -263,12 +263,12 @@ crazy_introspection :: proc() {
 		}
 
 		fruit_ti := type_info(Fruit);
-		name := (cast(^Type_Info.Named)fruit_ti).name; // Unsafe casts
-		info := cast(^Type_Info.Enum)type_info_base(fruit_ti); // Unsafe casts
+		name := (union_cast(^Type_Info.Named)fruit_ti).name; // Unsafe casts
+		info, _ := union_cast(^Type_Info.Enum)type_info_base(fruit_ti); // Unsafe casts
 
-		fmt.printf("% :: enum % {\n", name, info.base);
-		for i := 0; i < info.values.count; i += 1 {
-			fmt.printf("\t%\t= %,\n", info.names[i], info.values[i]);
+		fmt.printf("%s :: enum %T {\n", name, info.base);
+		for i := 0; i < len(info.values); i++ {
+			fmt.printf("\t%s\t= %v,\n", info.names[i], info.values[i]);
 		}
 		fmt.printf("}\n");
 

code/old_demos/demo004.odin

@@ -1,14 +1,14 @@
-#import "fmt.odin"
-#import "utf8.odin"
-#import "hash.odin"
-#import "mem.odin"
+#import "fmt.odin";
+#import "utf8.odin";
+#import "hash.odin";
+#import "mem.odin";
 
 main :: proc() {
 	{ // New Standard Library stuff
-		s := "Hello"
+		s := "Hello";
 		fmt.println(s,
 		            utf8.valid_string(s),
-		            hash.murmur64(s.data, s.count))
+		            hash.murmur64(cast([]byte)s));
 
 		// utf8.odin
 		// hash.odin
@@ -19,15 +19,15 @@ main :: proc() {
 	}
 
 	{
-		arena: mem.Arena
-		mem.init_arena_from_context(^arena, mem.megabytes(16)) // Uses default allocator
-		defer mem.free_arena(^arena)
+		arena: mem.Arena;
+		mem.init_arena_from_context(^arena, mem.megabytes(16)); // Uses default allocator
+		defer mem.free_arena(^arena);
 
 		push_allocator mem.arena_allocator(^arena) {
-			x := new(int)
-			x^ = 1337
+			x := new(int);
+			x^ = 1337;
 
-			fmt.println(x^)
+			fmt.println(x^);
 		}
 
 		/*
@@ -48,14 +48,14 @@ main :: proc() {
 
 		// You can also "push" a context
 
-		c := current_context() // Create copy of the allocator
-		c.allocator = mem.arena_allocator(^arena)
+		c := context; // Create copy of the allocator
+		c.allocator = mem.arena_allocator(^arena);
 
 		push_context c {
-			x := new(int)
-			x^ = 365
+			x := new(int);
+			x^ = 365;
 
-			fmt.println(x^)
+			fmt.println(x^);
 		}
 	}
 

code/old_demos/demo005.odin

@@ -42,12 +42,12 @@ syntax :: proc() {
 	};
 	Thing2 :: struct {x: f32, y: int, z: ^[]int};
 
-	// Slice interals are now just a `ptr+count`
-	slice: []int; compile_assert(size_of_val(slice) == 2*size_of(int));
+	// Slice interals are now just a `ptr+len+cap`
+	slice: []int; compile_assert(size_of_val(slice) == 3*size_of(int));
 
 	// Helper type - Help the reader understand what it is quicker
-	My_Int  :: type int;
-	My_Proc :: type proc(int) -> f32;
+	My_Int  :: #type int;
+	My_Proc :: #type proc(int) -> f32;
 
 
 	// All declarations with : are either variable or constant
@@ -59,6 +59,7 @@ syntax :: proc() {
 	c_proc     :: proc() { /* code here */ };
 
 
+/*
 	x += 1;
 	x -= 1;
 	// ++ and -- have been removed
@@ -67,7 +68,7 @@ syntax :: proc() {
 	// Question: Should they be added again?
 	// They were removed as they are redundant and statements, not expressions
 	// like in C/C++
-
+*/
 
 	// You can now build files as a `.dll`
 	// `odin build_dll demo.odin`
@@ -85,7 +86,7 @@ syntax :: proc() {
 
 Prefix_Type :: struct {x: int, y: f32, z: rawptr};
 
-thread_local my_tls: Prefix_Type;
+#thread_local my_tls: Prefix_Type;
 
 prefixes :: proc() {
 	using var: Prefix_Type;
@@ -98,7 +99,7 @@ prefixes :: proc() {
 
 	foo :: proc(using immutable pt: Prefix_Type, immutable int_ptr: ^int) {
 		// int_ptr = nil; // Not valid
-		int_ptr^ = 123; // Is valid
+		// int_ptr^ = 123; // Not valid
 	}
 
 
@@ -154,6 +155,7 @@ foreign_procedures :: proc() {
 }
 
 special_expressions :: proc() {
+/*
 	// Block expression
 	x := {
 		a: f32 = 123;
@@ -168,7 +170,7 @@ special_expressions :: proc() {
 		// TODO: Type cohesion is not yet finished
 		give 123;
 	}; // semicolon is required as it's an expression
-
+*/
 
 	// This is allows for inline blocks of code and will be a useful feature to have when
 	// macros will be implemented into the language
@@ -191,17 +193,17 @@ loops :: proc() {
 		break;
 	}
 
-	for i in 0..<123 { // 123 exclusive
+	for i in 0..123 { // 123 exclusive
 	}
 
-	for i in 0...122 { // 122 inclusive
+	for i in 0..123-1 { // 122 inclusive
 	}
 
-	for val, idx in 12..<16 {
+	for val, idx in 12..16 {
 		fmt.println(val, idx);
 	}
 
-	primes := [...]int{2, 3, 5, 7, 11, 13, 17, 19};
+	primes := [..]int{2, 3, 5, 7, 11, 13, 17, 19};
 
 	for p in primes {
 		fmt.println(p);
@@ -224,7 +226,7 @@ loops :: proc() {
 	when false {
 		for i, size := 0; i < name.count; i += size {
 			r: rune;
-			r, size = utf8.decode_rune(name[i:]);
+			r, size = utf8.decode_rune(name[i..]);
 			fmt.printf("%r\n", r);
 		}
 	}

code/punity.odin

@@ -1,35 +1,42 @@
-#import win32 "sys/windows.odin";
-#import "fmt.odin";
-#import "os.odin";
-#import "mem.odin";
+import (
+	win32 "sys/windows.odin";
+	"fmt.odin";
+	"os.odin";
+	"mem.odin";
+)
 
-CANVAS_WIDTH  :: 128;
-CANVAS_HEIGHT :: 128;
-CANVAS_SCALE  :: 3;
-FRAME_TIME    :: 1.0/30.0;
-WINDOW_TITLE  :: "Punity\x00";
+const (
+	CANVAS_WIDTH  = 128;
+	CANVAS_HEIGHT = 128;
+	CANVAS_SCALE  = 3;
+	FRAME_TIME    = 1.0/30.0;
+	WINDOW_TITLE  = "Punity\x00";
+)
 
-_ := compile_assert(CANVAS_WIDTH % 16 == 0);
+const _ = compile_assert(CANVAS_WIDTH % 16 == 0);
 
-WINDOW_WIDTH  :: CANVAS_WIDTH  * CANVAS_SCALE;
-WINDOW_HEIGHT :: CANVAS_HEIGHT * CANVAS_SCALE;
+const (
+	WINDOW_WIDTH  = CANVAS_WIDTH  * CANVAS_SCALE;
+	WINDOW_HEIGHT = CANVAS_HEIGHT * CANVAS_SCALE;
+)
 
+const (
+	STACK_CAPACITY   = 1<<20;
+	STORAGE_CAPACITY = 1<<20;
 
-STACK_CAPACITY   :: 1<<20;
-STORAGE_CAPACITY :: 1<<20;
+	DRAW_LIST_RESERVE = 128;
 
-DRAW_LIST_RESERVE :: 128;
+	MAX_KEYS = 256;
+)
 
-MAX_KEYS :: 256;
-
-Core :: struct {
+type Core struct {
 	stack:   ^Bank,
 	storage: ^Bank,
 
 	running:       bool,
 	key_modifiers: u32,
-	key_states:    [MAX_KEYS]byte,
-	key_deltas:    [MAX_KEYS]byte,
+	key_states:    [MAX_KEYS]u8,
+	key_deltas:    [MAX_KEYS]u8,
 
 	perf_frame,
 	perf_frame_inner,
@@ -45,52 +52,52 @@ Core :: struct {
 	draw_list: ^Draw_List,
 }
 
-Perf_Span :: struct {
+type Perf_Span struct {
 	stamp: f64,
 	delta: f32,
 }
 
-Bank :: struct {
-	memory: []byte,
+type Bank struct {
+	memory: []u8,
 	cursor: int,
 }
 
-Bank_State :: struct {
+type Bank_State struct {
 	state: Bank,
 	bank: ^Bank,
 }
 
 
-Color :: raw_union {
-	using channels: struct{a, b, g, r: byte},
+type Color raw_union {
+	using channels: struct{a, b, g, r: u8},
 	rgba: u32,
 }
 
-Palette :: struct {
+type Palette struct {
 	colors: [256]Color,
-	colors_count: byte,
+	colors_count: u8,
 }
 
 
-Rect :: raw_union {
+type Rect raw_union {
 	using minmax: struct {min_x, min_y, max_x, max_y: int},
 	using pos: struct {left, top, right, bottom: int},
 	e: [4]int,
 }
 
-Bitmap :: struct {
-	pixels: []byte,
+type Bitmap struct {
+	pixels: []u8,
 	width:  int,
 	height: int,
 }
 
-Font :: struct {
+type Font struct {
 	using bitmap: Bitmap,
 	char_width:   int,
 	char_height:  int,
 }
 
-Canvas :: struct {
+type Canvas struct {
 	using bitmap: ^Bitmap,
 	palette:      Palette,
 	translate_x:  int,
@@ -99,89 +106,92 @@ Canvas :: struct {
 	font:         ^Font,
 }
 
-DrawFlag :: enum {
+type DrawFlag enum {
 	NONE   = 0,
 	FLIP_H = 1<<0,
 	FLIP_V = 1<<1,
 	MASK   = 1<<2,
 }
 
-Draw_Item :: struct {}
-Draw_List :: struct {
+type Draw_Item struct {}
+type Draw_List struct {
 	items: []Draw_Item,
 }
 
-Key :: enum {
-	MOD_SHIFT   = 0x0001,
-	MOD_CONTROL = 0x0002,
-	MOD_ALT     = 0x0004,
-	MOD_SUPER   = 0x0008,
+type Key enum {
+	ModShift   = 0x0001,
+	ModControl = 0x0002,
+	ModAlt     = 0x0004,
+	ModSuper   = 0x0008,
 
-	UNKNOWN            =-1,
-	INVALID            =-2,
 
-	LBUTTON            = 1,
-	RBUTTON            = 2,
-	CANCEL             = 3,
-	MBUTTON            = 4,
+	Unknown            =-1,
+	Invalid            =-2,
 
-	BACK               = 8,
-	TAB                = 9,
-	CLEAR              = 12,
-	RETURN             = 13,
-	SHIFT              = 16,
-	CONTROL            = 17,
-	MENU               = 18,
-	PAUSE              = 19,
-	CAPITAL            = 20,
-	KANA               = 0x15,
-	HANGEUL            = 0x15,
-	HANGUL             = 0x15,
-	JUNJA              = 0x17,
-	FINAL              = 0x18,
-	HANJA              = 0x19,
-	KANJI              = 0x19,
-	ESCAPE             = 0x1B,
-	CONVERT            = 0x1C,
-	NONCONVERT         = 0x1D,
-	ACCEPT             = 0x1E,
-	MODECHANGE         = 0x1F,
-	SPACE              = 32,
-	PRIOR              = 33,
-	NEXT               = 34,
-	END                = 35,
-	HOME               = 36,
-	LEFT               = 37,
-	UP                 = 38,
-	RIGHT              = 39,
-	DOWN               = 40,
-	SELECT             = 41,
-	PRINT              = 42,
-	EXEC               = 43,
-	SNAPSHOT           = 44,
-	INSERT             = 45,
-	DELETE             = 46,
-	HELP               = 47,
-	LWIN               = 0x5B,
-	RWIN               = 0x5C,
-	APPS               = 0x5D,
-	SLEEP              = 0x5F,
-	NUMPAD0            = 0x60,
-	NUMPAD1            = 0x61,
-	NUMPAD2            = 0x62,
-	NUMPAD3            = 0x63,
-	NUMPAD4            = 0x64,
-	NUMPAD5            = 0x65,
-	NUMPAD6            = 0x66,
-	NUMPAD7            = 0x67,
-	NUMPAD8            = 0x68,
-	NUMPAD9            = 0x69,
-	MULTIPLY           = 0x6A,
-	ADD                = 0x6B,
-	SEPARATOR          = 0x6C,
-	SUBTRACT           = 0x6D,
-	DECIMAL            = 0x6E,
-	DIVIDE             = 0x6F,
+
+	Lbutton            = 1,
+	Rbutton            = 2,
+	Cancel             = 3,
+	Mbutton            = 4,
+
+
+	Back               = 8,
+	Tab                = 9,
+	Clear              = 12,
+	Return             = 13,
+	Shift              = 16,
+	Control            = 17,
+	Menu               = 18,
+	Pause              = 19,
+	Capital            = 20,
+	Kana               = 0x15,
+	Hangeul            = 0x15,
+	Hangul             = 0x15,
+	Junja              = 0x17,
+	Final              = 0x18,
+	Hanja              = 0x19,
+	Kanji              = 0x19,
+	Escape             = 0x1B,
+	Convert            = 0x1C,
+	NonConvert         = 0x1D,
+	Accept             = 0x1E,
+	ModeChange         = 0x1F,
+	Space              = 32,
+	Prior              = 33,
+	Next               = 34,
+	End                = 35,
+	Home               = 36,
+	Left               = 37,
+	Up                 = 38,
+	Right              = 39,
+	Down               = 40,
+	Select             = 41,
+	Print              = 42,
+	Exec               = 43,
+	Snapshot           = 44,
+	Insert             = 45,
+	Delete             = 46,
+	Help               = 47,
+	Lwin               = 0x5B,
+	Rwin               = 0x5C,
+	Apps               = 0x5D,
+	Sleep              = 0x5F,
+	Numpad0            = 0x60,
+	Numpad1            = 0x61,
+	Numpad2            = 0x62,
+	Numpad3            = 0x63,
+	Numpad4            = 0x64,
+	Numpad5            = 0x65,
+	Numpad6            = 0x66,
+	Numpad7            = 0x67,
+	Numpad8            = 0x68,
+	Numpad9            = 0x69,
+	Multiply           = 0x6A,
+	Add                = 0x6B,
+	Separator          = 0x6C,
+	Subtract           = 0x6D,
+	Decimal            = 0x6E,
+	Divide             = 0x6F,
 	F1                 = 0x70,
 	F2                 = 0x71,
 	F3                 = 0x72,
@@ -206,32 +216,33 @@ Key :: enum {
 	F22                = 0x85,
 	F23                = 0x86,
 	F24                = 0x87,
-	NUMLOCK            = 0x90,
-	SCROLL             = 0x91,
-	LSHIFT             = 0xA0,
-	RSHIFT             = 0xA1,
-	LCONTROL           = 0xA2,
-	RCONTROL           = 0xA3,
-	LMENU              = 0xA4,
-	RMENU              = 0xA5,
+	Numlock            = 0x90,
+	Scroll             = 0x91,
+	Lshift             = 0xA0,
+	Rshift             = 0xA1,
+	Lcontrol           = 0xA2,
+	Rcontrol           = 0xA3,
+	Lmenu              = 0xA4,
+	Rmenu              = 0xA5,
 
-	APOSTROPHE         = 39,  /* ' */
-	COMMA              = 44,  /* , */
-	MINUS              = 45,  /* - */
-	PERIOD             = 46,  /* . */
-	SLASH              = 47,  /* / */
-	NUM0               = 48,
-	NUM1               = 49,
-	NUM2               = 50,
-	NUM3               = 51,
-	NUM4               = 52,
-	NUM5               = 53,
-	NUM6               = 54,
-	NUM7               = 55,
-	NUM8               = 56,
-	NUM9               = 57,
-	SEMICOLON          = 59,  /* ; */
-	EQUAL              = 61,  /* = */
+
+	Apostrophe         = 39,  /* ' */
+	Comma              = 44,  /* , */
+	Minus              = 45,  /* - */
+	Period             = 46,  /* . */
+	Slash              = 47,  /* / */
+	Num0               = 48,
+	Num1               = 49,
+	Num2               = 50,
+	Num3               = 51,
+	Num4               = 52,
+	Num5               = 53,
+	Num6               = 54,
+	Num7               = 55,
+	Num8               = 56,
+	Num9               = 57,
+	Semicolon          = 59,  /* ; */
+	Equal              = 61,  /* = */
 	A                  = 65,
 	B                  = 66,
 	C                  = 67,
@@ -258,56 +269,55 @@ Key :: enum {
 	X                  = 88,
 	Y                  = 89,
 	Z                  = 90,
-	LEFT_BRACKET       = 91,  /* [ */
-	BACKSLASH          = 92,  /* \ */
-	RIGHT_BRACKET      = 93,  /* ] */
-	GRAVE_ACCENT       = 96,  /* ` */
+	LeftBracket        = 91,  /* [ */
+	Backslash          = 92,  /* \ */
+	RightBracket       = 93,  /* ] */
+	GraveAccent        = 96,  /* ` */
 };
 
 
-key_down :: proc(k: Key) -> bool {
+proc key_down(k: Key) -> bool {
 	return _core.key_states[k] != 0;
 }
 
-key_pressed :: proc(k: Key) -> bool {
+proc key_pressed(k: Key) -> bool {
 	return (_core.key_deltas[k] != 0) && key_down(k);
 }
 
 
 
 
-win32_perf_count_freq := win32.GetQueryPerformanceFrequency();
-time_now :: proc() -> f64 {
+let win32_perf_count_freq = win32.get_query_performance_frequency();
+proc time_now() -> f64 {
 	assert(win32_perf_count_freq != 0);
 
-	counter: i64;
-	win32.QueryPerformanceCounter(^counter);
-	result := cast(f64)counter / cast(f64)win32_perf_count_freq;
-	return result;
+	var counter: i64;
+	win32.query_performance_counter(&counter);
+	return f64(counter) / f64(win32_perf_count_freq);
 }
 
-_core: Core;
+var _core: Core;
 
-run :: proc(user_init, user_step: proc(c: ^Core)) {
+proc run(user_init, user_step: proc(c: ^Core)) {
 	using win32;
 
 	_core.running = true;
 
-	win32_proc :: proc(hwnd: win32.HWND, msg: u32, wparam: win32.WPARAM, lparam: win32.LPARAM) -> win32.LRESULT #no_inline #cc_c {
-		win32_app_key_mods :: proc() -> u32 {
-			mods: u32 = 0;
+	proc win32_proc(hwnd: win32.Hwnd, msg: u32, wparam: win32.Wparam, lparam: win32.Lparam) -> win32.Lresult #no_inline #cc_c {
+		proc win32_app_key_mods() -> u32 {
+			var mods: u32 = 0;
 
-			if is_key_down(Key_Code.SHIFT) {
-				mods |= cast(u32)Key.MOD_SHIFT;
+			if is_key_down(KeyCode.Shift) {
+				mods |= u32(Key.ModShift);
 			}
-			if is_key_down(Key_Code.CONTROL) {
-				mods |= cast(u32)Key.MOD_CONTROL;
+			if is_key_down(KeyCode.Control) {
+				mods |= u32(Key.ModControl);
 			}
-			if is_key_down(Key_Code.MENU) {
-				mods |= cast(u32)Key.MOD_ALT;
+			if is_key_down(KeyCode.Menu) {
+				mods |= u32(Key.ModAlt);
 			}
-			if is_key_down(Key_Code.LWIN) || is_key_down(Key_Code.RWIN) {
-				mods |= cast(u32)Key.MOD_SUPER;
+			if is_key_down(KeyCode.Lwin) || is_key_down(KeyCode.Rwin) {
+				mods |= u32(Key.ModSuper);
 			}
 
 			return mods;
@@ -331,61 +341,62 @@ run :: proc(user_init, user_step: proc(c: ^Core)) {
 			return 0;
 
 		case WM_CLOSE:
-			PostQuitMessage(0);
+			post_quit_message(0);
 			_core.running = false;
 			return 0;
 		}
 
-		return DefWindowProcA(hwnd, msg, wparam, lparam);
+		return def_window_proc_a(hwnd, msg, wparam, lparam);
 	}
 
 
-	window_class := WNDCLASSEXA{
-		class_name = (cast(string)"Punity\x00").data, // C-style string
-		size       = size_of(WNDCLASSEXA),
+	var class_name = "Punity\x00";
+	var window_class = WndClassExA{
+		class_name = &class_name[0],
+		size       = size_of(WndClassExA),
 		style      = CS_HREDRAW | CS_VREDRAW | CS_OWNDC,
-		instance   = cast(HINSTANCE)GetModuleHandleA(nil),
+		instance   = Hinstance(get_module_handle_a(nil)),
 		wnd_proc   = win32_proc,
 		// wnd_proc   = DefWindowProcA,
-		background = cast(HBRUSH)GetStockObject(BLACK_BRUSH),
+		background = Hbrush(get_stock_object(BLACK_BRUSH)),
 	};
 
-	if RegisterClassExA(^window_class) == 0 {
-		fmt.fprintln(os.stderr, "RegisterClassExA failed");
+	if register_class_ex_a(&window_class) == 0 {
+		fmt.fprintln(os.stderr, "register_class_ex_a failed");
 		return;
 	}
 
-	screen_width  := GetSystemMetrics(SM_CXSCREEN);
-	screen_height := GetSystemMetrics(SM_CYSCREEN);
+	var screen_width  = get_system_metrics(SM_CXSCREEN);
+	var screen_height = get_system_metrics(SM_CYSCREEN);
 
-	rc: RECT;
+	var rc: Rect;
 	rc.left   = (screen_width - WINDOW_WIDTH)   / 2;
 	rc.top    = (screen_height - WINDOW_HEIGHT) / 2;
 	rc.right  = rc.left + WINDOW_WIDTH;
 	rc.bottom = rc.top + WINDOW_HEIGHT;
 
-	style: u32 = WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;
-	assert(AdjustWindowRect(^rc, style, 0) != 0);
+	var style: u32 = WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;
+	assert(adjust_window_rect(&rc, style, 0) != 0);
 
-	wt := WINDOW_TITLE;
+	var wt = WINDOW_TITLE;
 
-	win32_window := CreateWindowExA(0,
-	                                window_class.class_name,
-	                                wt.data,
-	                                style,
-	                                rc.left, rc.top,
-	                                rc.right-rc.left, rc.bottom-rc.top,
-	                                nil, nil, window_class.instance,
-	                                nil);
+	var win32_window = create_window_ex_a(0,
+	                                      window_class.class_name,
+	                                      &wt[0],
+	                                      style,
+	                                      rc.left, rc.top,
+	                                      rc.right-rc.left, rc.bottom-rc.top,
+	                                      nil, nil, window_class.instance,
+	                                      nil);
 
 	if win32_window == nil {
-		fmt.fprintln(os.stderr, "CreateWindowExA failed");
+		fmt.fprintln(os.stderr, "create_window_ex_a failed");
 		return;
 	}
 
 
-	window_bmi: BITMAPINFO;
-	window_bmi.size        = size_of(BITMAPINFOHEADER);
+	var window_bmi: BitmapInfo;
+	window_bmi.size        = size_of(BitmapInfoHeader);
 	window_bmi.width       = CANVAS_WIDTH;
 	window_bmi.height      = CANVAS_HEIGHT;
 	window_bmi.planes      = 1;
@@ -393,27 +404,27 @@ run :: proc(user_init, user_step: proc(c: ^Core)) {
 	window_bmi.compression = BI_RGB;
 
 
-	user_init(^_core);
+	user_init(&_core);
 
-	ShowWindow(win32_window, SW_SHOW);
+	show_window(win32_window, SW_SHOW);
 
-	window_buffer := new_slice(u32, CANVAS_WIDTH * CANVAS_HEIGHT);
+	var window_buffer = make([]u32, CANVAS_WIDTH * CANVAS_HEIGHT);
 	defer free(window_buffer);
 
-
-	for i := 0; i < window_buffer.count; i += 1 {
+	for _, i in window_buffer {
 		window_buffer[i] = 0xff00ff;
 	}
 
+	var (
+		dt: f64;
+		prev_time = time_now();
+		curr_time = time_now();
+		total_time : f64 = 0;
+		offset_x = 0;
+		offset_y = 0;
+	)
 
-	dt: f64;
-	prev_time := time_now();
-	curr_time := time_now();
-	total_time : f64 = 0;
-	offset_x := 0;
-	offset_y := 0;
-
-	message: MSG;
+	var message: Msg;
 	for _core.running {
 		curr_time = time_now();
 		dt = curr_time - prev_time;
@@ -424,64 +435,62 @@ run :: proc(user_init, user_step: proc(c: ^Core)) {
 		offset_y += 2;
 
 		{
-			data: [128]byte;
-			buf: fmt.Buffer;
-			buf.data = data[:];
-			fmt.bprintf(^buf, "Punity: %.4f ms\x00", dt*1000);
-			win32.SetWindowTextA(win32_window, ^buf[0]);
+			var buf: [128]u8;
+			var s = fmt.bprintf(buf[..], "Punity: %.4f ms\x00", dt*1000);
+			win32.set_window_text_a(win32_window, &s[0]);
 		}
 
 
-		for y := 0; y < CANVAS_HEIGHT; y += 1 {
-			for x := 0; x < CANVAS_WIDTH; x += 1 {
-				g := (x % 32) * 8;
-				b := (y % 32) * 8;
-				window_buffer[x + y*CANVAS_WIDTH] = cast(u32)(g << 8 | b);
+		for var y = 0; y < CANVAS_HEIGHT; y++ {
+			for var x = 0; x < CANVAS_WIDTH; x++ {
+				var g = (x % 32) * 8;
+				var b = (y % 32) * 8;
+				window_buffer[x + y*CANVAS_WIDTH] = u32(g << 8 | b);
 			}
 		}
 
-		mem.zero(^_core.key_deltas[0], size_of_val(_core.key_deltas));
+		mem.zero(&_core.key_deltas[0], size_of(_core.key_deltas));
 
-		for PeekMessageA(^message, nil, 0, 0, PM_REMOVE) != 0 {
+		for peek_message_a(&message, nil, 0, 0, PM_REMOVE) != 0 {
 			if message.message == WM_QUIT {
 				_core.running = false;
 			}
-			TranslateMessage(^message);
-			DispatchMessageA(^message);
+			translate_message(&message);
+			dispatch_message_a(&message);
 		}
 
-		user_step(^_core);
+		user_step(&_core);
 
-		dc := GetDC(win32_window);
-		StretchDIBits(dc,
-		              0, 0, CANVAS_WIDTH * CANVAS_SCALE, CANVAS_HEIGHT * CANVAS_SCALE,
-		              0, 0, CANVAS_WIDTH, CANVAS_HEIGHT,
-		              window_buffer.data,
-		              ^window_bmi,
-		              DIB_RGB_COLORS,
-		              SRCCOPY);
-		ReleaseDC(win32_window, dc);
+		var dc = get_dc(win32_window);
+		stretch_dibits(dc,
+		               0, 0, CANVAS_WIDTH * CANVAS_SCALE, CANVAS_HEIGHT * CANVAS_SCALE,
+		               0, 0, CANVAS_WIDTH, CANVAS_HEIGHT,
+		               &window_buffer[0],
+		               &window_bmi,
+		               DIB_RGB_COLORS,
+		               SRCCOPY);
+		release_dc(win32_window, dc);
 
 
 		{
-			delta := time_now() - prev_time;
-			ms := cast(i32)((FRAME_TIME - delta) * 1000);
+			var delta = time_now() - prev_time;
+			var ms = i32((FRAME_TIME - delta) * 1000);
 			if ms > 0 {
-				win32.Sleep(ms);
+				win32.sleep(ms);
 			}
 		}
 
-		_core.frame += 1;
+		_core.frame++;
 	}
 }
 
 
-main :: proc() {
-	user_init :: proc(c: ^Core) {
+proc main() {
+	proc user_init(c: ^Core) {
 
 	}
 
-	user_step :: proc(c: ^Core) {
+	proc user_step(c: ^Core) {
 
 	}
 

code/sub/test.odin

@@ -1,5 +0,0 @@
-#import "fmt.odin" as fmt
-
-thing :: proc() {
-	fmt.println("Sub Hello!")
-}

code/test.odin

@@ -1,35 +0,0 @@
-/*#import "fmt.odin"
-
-thing :: proc() {
-	fmt.println("Hello1!")
-}*/
-
-
-#import "fmt.odin";
-
-main :: proc() {
-	fmt.println("hello, world!");
-}
-
-
-/*#import "fmt.odin" as .
-
-thing :: proc() {
-	println("Hello3!")
-}
-
-
-*/
-/*#import "fmt.odin" as _
-
-thing :: proc() {
-	// println("Hello4!")
-}
-*/
-
-/*
-#include "fmt.odin"
-
-thing :: proc() {
-	println("Hello5!")
-}*/

core/_soft_numbers.odin

@@ -1,158 +1,227 @@
 #shared_global_scope;
 
-
-// import "fmt.odin";
-
-// proc __u128_mod(a, b: u128) -> u128 #link_name "__umodti3" {
-// 	var _, r := __u128_quo_mod(a, b)
-// 	return r
-// }
-
-// proc __u128_quo(a, b: u128) -> u128 #link_name "__udivti3" {
-// 	var n, _ := __u128_quo_mod(a, b)
-// 	return n
-// }
-
-// proc __i128_mod(a, b: i128) -> i128 #link_name "__modti3" {
-// 	var _, r := __i128_quo_mod(a, b)
-// 	return r
-// }
-
-// proc __i128_quo(a, b: i128) -> i128 #link_name "__divti3" {
-// 	var n, _ := __i128_quo_mod(a, b)
-// 	return n
-// }
-
-// proc __i128_quo_mod(a, b: i128) -> (i128, i128) #link_name "__divmodti4" {
-// 	var s := b >> 127
-// 	b = (b ~ s) - s
-// 	s = a >> 127
-// 	a = (a ~ s) - s
-
-// 	var n, r := __u128_quo_mod(a as u128, b as u128)
-// 	return (n as i128 ~ s) - s, (r as i128 ~ s) - s
-// }
+proc __multi3(a, b: u128) -> u128 #cc_c #link_name "__multi3" {
+	const bits_in_dword_2 = size_of(i64) * 4;
+	const lower_mask = u128(~u64(0) >> bits_in_dword_2);
 
 
-// proc __u128_quo_mod(a, b: u128) -> (u128, u128) #link_name "__udivmodti4" {
-// 	proc clz(x: u64) -> u64 {
-// 		proc clz_u64(x: u64, is_zero_undef: bool) -> u64 #foreign "llvm.ctlz.i64"
-// 		return clz_u64(x, false)
-// 	}
-// 	proc ctz(x: u64) -> u64 {
-// 		proc ctz_u64(x: u64, is_zero_undef: bool) -> u64 #foreign "llvm.cttz.i64"
-// 		return ctz_u64(x, false)
-// 	}
+	when ODIN_ENDIAN == "bit" {
+		type TWords raw_union {
+			all: u128,
+			using _: struct {lo, hi: u64},
+		};
+	} else {
+		type TWords raw_union {
+			all: u128,
+			using _: struct {hi, lo: u64},
+		};
+	}
+
+	var r: TWords;
+	var t: u64;
+
+	r.lo = u64(a & lower_mask) * u64(b & lower_mask);
+	t = r.lo >> bits_in_dword_2;
+	r.lo &= u64(lower_mask);
+	t += u64(a >> bits_in_dword_2) * u64(b & lower_mask);
+	r.lo += u64(t & u64(lower_mask)) << bits_in_dword_2;
+	r.hi = t >> bits_in_dword_2;
+	t = r.lo >> bits_in_dword_2;
+	r.lo &= u64(lower_mask);
+	t += u64(b >> bits_in_dword_2) * u64(a & lower_mask);
+	r.lo += u64(t & u64(lower_mask)) << bits_in_dword_2;
+	r.hi += t >> bits_in_dword_2;
+	r.hi += u64(a >> bits_in_dword_2) * u64(b >> bits_in_dword_2);
+	return r.all;
+}
+
+proc __u128_mod(a, b: u128) -> u128 #cc_c #link_name "__umodti3" {
+	var r: u128;
+	__u128_quo_mod(a, b, &r);
+	return r;
+}
+
+proc __u128_quo(a, b: u128) -> u128 #cc_c #link_name "__udivti3" {
+	return __u128_quo_mod(a, b, nil);
+}
+
+proc __i128_mod(a, b: i128) -> i128 #cc_c #link_name "__modti3" {
+	var r: i128;
+	__i128_quo_mod(a, b, &r);
+	return r;
+}
+
+proc __i128_quo(a, b: i128) -> i128 #cc_c #link_name "__divti3" {
+	return __i128_quo_mod(a, b, nil);
+}
+
+proc __i128_quo_mod(a, b: i128, rem: ^i128) -> (quo: i128) #cc_c #link_name "__divmodti4" {
+	var s: i128;
+	s = b >> 127;
+	b = (b~s) - s;
+	s = a >> 127;
+	b = (a~s) - s;
+
+	var uquo: u128;
+	var urem = __u128_quo_mod(transmute(u128, a), transmute(u128, b), &uquo);
+	var iquo = transmute(i128, uquo);
+	var irem = transmute(i128, urem);
+
+	iquo = (iquo~s) - s;
+	irem = (irem~s) - s;
+	if rem != nil { rem^ = irem; }
+	return iquo;
+}
 
 
-// 	u128_lo_hi :: raw_union {
-// 		all: u128
-// 		using _lohi: struct {lo, hi: u64;}
-// 	}
+proc __u128_quo_mod(a, b: u128, rem: ^u128) -> (quo: u128) #cc_c #link_name "__udivmodti4" {
+	var alo, ahi = u64(a), u64(a>>64);
+	var blo, bhi = u64(b), u64(b>>64);
+	if b == 0 {
+		if rem != nil { rem^ = 0; }
+		return u128(alo/blo);
+	}
 
-// 	n, d, q, r: u128_lo_hi
-// 	sr: u64
+	var r, d, x, q: u128 = a, b, 1, 0;
 
-// 	n.all = a
-// 	d.all = b
+	for r >= d && (d>>127)&1 == 0 {
+		x <<= 1;
+		d <<= 1;
+	}
 
-// 	if n.hi == 0 {
-// 		if d.hi == 0 {
-// 			return (n.lo / d.lo) as u128, (n.lo % d.lo) as u128
-// 		}
-// 		return 0, n.lo as u128
-// 	}
-// 	if d.lo == 0 {
-// 		if d.hi == 0 {
-// 			return (n.hi / d.lo) as u128, (n.hi % d.lo) as u128
-// 		}
-// 		if n.lo == 0 {
-// 			r.hi = n.hi % d.hi
-// 			r.lo = 0
-// 			return (n.hi / d.hi) as u128, r.all
-// 		}
-// 		if (d.hi & (d.hi-1)) == 0 {
-// 			r.lo = n.lo
-// 			r.hi = n.hi & (d.hi-1)
-// 			return (n.hi >> ctz(d.hi)) as u128, r.all
-// 		}
+	for x != 0 {
+		if r >= d {
+			r -= d;
+			q |= x;
+		}
+		x >>= 1;
+		d >>= 1;
+	}
 
-// 		sr = clz(d.hi) - clz(n.hi)
-// 		if sr > 64 - 2 {
-// 			return 0, n.all
-// 		}
-// 		sr++
-// 		q.lo = 0
-// 		q.hi = n.lo << (64-sr)
-// 		r.hi = n.hi >> sr
-// 		r.lo = (n.hi << (64-sr)) | (n.lo >> sr)
-// 	} else {
-// 		if d.hi == 0 {
-// 			if (d.lo & (d.lo - 1)) == 0 {
-// 				var rem := (n.lo % (d.lo - 1)) as u128
-// 				if d.lo == 1 {
-// 					return n.all, rem
-// 				}
-// 				sr = ctz(d.lo)
-// 				q.hi = n.hi >> sr
-// 				q.lo = (n.hi << (64-sr)) | (n.lo >> sr)
-// 				return q.all, rem
-// 			}
+	if rem != nil { rem^ = r; }
+	return q;
+}
 
-// 			sr = 1 + 64 + clz(d.lo) - clz(n.hi)
+/*
+proc __f16_to_f32(f: f16) -> f32 #cc_c #no_inline #link_name "__gnu_h2f_ieee" {
+	when true {
+		// Source: https://fgiesen.wordpress.com/2012/03/28/half-to-float-done-quic/
+		const FP32 = raw_union {u: u32, f: f32};
 
-// 			q.all = n.all << (128-sr)
-// 			r.all = n.all >> sr
-// 			if sr == 64 {
-// 				q.lo = 0
-// 				q.hi = n.lo
-// 				r.hi = 0
-// 				r.lo = n.hi
-// 			} else if sr < 64 {
-// 				q.lo = 0
-// 				q.hi = n.lo << (64-sr)
-// 				r.hi = n.hi >> sr
-// 				r.lo = (n.hi << (64-sr)) | (n.lo >> sr)
-// 			} else {
-// 				q.lo = n.lo << (128-sr)
-// 				q.hi = (n.hi << (128-sr)) | (n.lo >> (sr-64))
-// 				r.hi = 0
-// 				r.lo = n.hi >> (sr-64)
-// 			}
-// 		} else {
-// 			sr = clz(d.hi) - clz(n.hi)
-// 			if sr > 64-1 {
-// 				return 0, n.all
-// 			}
-// 			sr++
-// 			q.lo = 0
-// 			q.hi = n.lo << (64-sr)
-// 			r.all = n.all >> sr
-// 			if sr < 64 {
-// 				r.hi = n.hi >> sr
-// 				r.lo = (n.hi << (64-sr)) | (n.lo >> sr)
-// 			} else {
-// 				r.hi = 0
-// 				r.lo = n.hi
-// 			}
-// 		}
-// 	}
+		magic, was_infnan: FP32;
+		magic.u = (254-15) << 23;
+		was_infnan.u = (127+16) << 23;
 
-// 	carry: u64
-// 	for ; sr > 0; sr-- {
-// 		r.hi = (r.hi << 1) | (r.lo >> (64-1))
-// 		r.lo = (r.lo << 1) | (r.hi >> (64-1))
-// 		q.hi = (q.hi << 1) | (q.lo >> (64-1))
-// 		q.lo = (q.lo << 1) | carry
+		hu := transmute(u16, f);
 
-// 		carry = 0
-// 		if r.all >= d.all {
-// 			r.all -= d.all
-// 			carry = 1
-// 		}
-// 	}
+		o := FP32{};
 
-// 	q.all = (q.all << 1) | (carry as u128)
-// 	return q.all, r.all
-// }
+		o.u = u32(hu & 0x7fff) << 13);
+		o.f *= magic.f;
+		if o.f >= was_infnan.f {
+			o.u |= 255 << 23;
+		}
+		o.u |= u32(hu & 0x8000) << 16;
+		return o.f;
+	} else {
+		return 0;
+	}
+}
+proc __f32_to_f16(f_: f32) -> f16 #cc_c #no_inline #link_name "__gnu_f2h_ieee" {
+	when false {
+		// Source: https://gist.github.com/rygorous/2156668
+		const FP16 = raw_union {u: u16, f: f16};
+		const FP32 = raw_union {u: u32, f: f32};
 
+		f32infty, f16infty, magic: FP32;
+		f32infty.u = 255<<23;
+		f16infty.u =  31<<23;
+		magic.u    =  15<<23;
+
+		const sign_mask = u32(0x80000000);
+		const round_mask = ~u32(0x0fff);
+
+		f := transmute(FP32, f_);
+
+		o: FP16;
+		sign := f.u & sign_mask;
+		f.u ~= sign;
+
+		// NOTE all the integer compares in this function can be safely
+		// compiled into signed compares since all operands are below
+		// 0x80000000. Important if you want fast straight SSE2 code
+		// (since there's no unsigned PCMPGTD).
+
+		if f.u >= f32infty.u { // Inf or NaN (all exponent bits set)
+			o.u = f.u > f32infty.u ? 0x7e00 : 0x7c00; // NaN->qNaN and Inf->Inf
+		} else { // (De)normalized number or zero
+			f.u &= round_mask;
+			f.f *= magic.f;
+			f.u -= round_mask;
+			if f.u > f16infty.u {
+				f.u = f16infty.u; // Clamp to signed infinity if overflowed
+			}
+
+			o.u = u16(f.u >> 13); // Take the bits!
+		}
+
+		o.u |= u16(sign >> 16);
+		return o.f;
+	} else {
+		f := transmute(u32, f_);
+		h: u16;
+		hs, he, hf: u16;
+
+		fs := (f >> 31) & 1;
+		fe := (f >> 23) & 0b1111_1111;
+		ff := (f >> 0)  & 0b0111_1111_1111_1111_1111_1111;
+
+		add_one := false;
+
+		if (fe == 0) {
+			he = 0;
+		} else if (fe == 255) {
+			he = 31;
+			hf = ff != 0 ? 0x200 : 0;
+		} else {
+			ne := fe - 127 + 15;
+			if ne >= 31 {
+				he = 31;
+			} else if ne <= 0 {
+				if (14-ne) <= 24 {
+					mant := ff | 0x800000;
+					hf = u16(mant >> (14-ne));
+
+					if (mant >> (13-ne)) & 1 != 0 {
+						add_one = true;
+					}
+				}
+			} else {
+				he = u16(ne);
+				hf = u16(ff >> 13);
+				if ff&0x1000 != 0 {
+					add_one = true;
+				}
+			}
+		}
+
+
+		hs = u16(hs);
+		h |= (he&0b0001_1111)<<10;
+		h |= (hf&0b0011_1111_1111);
+		if add_one {
+			h++;
+		}
+		h |= (hs&1) << 15;
+		return transmute(f16, h);
+	}
+}
+
+proc __f64_to_f16(f: f64) -> f16 #cc_c #no_inline #link_name "__truncdfhf2" {
+	return __f32_to_f16(f32(f));
+}
+
+proc __f16_to_f64(f: f16) -> f64 #cc_c #no_inline {
+	return f64(__f16_to_f32(f));
+}
+*/

core/atomic.odin

@@ -1,100 +0,0 @@
-// TODO(bill): Use assembly instead here to implement atomics
-// Inline vs external file?
-
-#import win32 "sys/windows.odin" when ODIN_OS == "windows";
-_ := compile_assert(ODIN_ARCH == "amd64"); // TODO(bill): x86 version
-
-
-yield_thread :: proc() { win32.mm_pause(); }
-mfence       :: proc() { win32.ReadWriteBarrier(); }
-sfence       :: proc() { win32.WriteBarrier(); }
-lfence       :: proc() { win32.ReadBarrier(); }
-
-
-load :: proc(a: ^i32) -> i32 {
-	return a^;
-}
-store :: proc(a: ^i32, value: i32) {
-	a^ = value;
-}
-compare_exchange :: proc(a: ^i32, expected, desired: i32) -> i32 {
-	return win32.InterlockedCompareExchange(a, desired, expected);
-}
-exchanged :: proc(a: ^i32, desired: i32) -> i32 {
-	return win32.InterlockedExchange(a, desired);
-}
-fetch_add :: proc(a: ^i32, operand: i32) -> i32 {
-	return win32.InterlockedExchangeAdd(a, operand);
-
-}
-fetch_and :: proc(a: ^i32, operand: i32) -> i32 {
-	return win32.InterlockedAnd(a, operand);
-}
-fetch_or :: proc(a: ^i32, operand: i32) -> i32 {
-	return win32.InterlockedOr(a, operand);
-}
-spin_lock :: proc(a: ^i32, time_out: int) -> bool { // NOTE(bill) time_out = -1 as default
-	old_value := compare_exchange(a, 1, 0);
-	counter := 0;
-	for old_value != 0 && (time_out < 0 || counter < time_out) {
-		counter++;
-		yield_thread();
-		old_value = compare_exchange(a, 1, 0);
-		mfence();
-	}
-	return old_value == 0;
-}
-spin_unlock :: proc(a: ^i32) {
-	store(a, 0);
-	mfence();
-}
-try_acquire_lock :: proc(a: ^i32) -> bool {
-	yield_thread();
-	old_value := compare_exchange(a, 1, 0);
-	mfence();
-	return old_value == 0;
-}
-
-
-load :: proc(a: ^i64) -> i64 {
-	return a^;
-}
-store :: proc(a: ^i64, value: i64) {
-	a^ = value;
-}
-compare_exchange :: proc(a: ^i64, expected, desired: i64) -> i64 {
-	return win32.InterlockedCompareExchange64(a, desired, expected);
-}
-exchanged :: proc(a: ^i64, desired: i64) -> i64 {
-	return win32.InterlockedExchange64(a, desired);
-}
-fetch_add :: proc(a: ^i64, operand: i64) -> i64 {
-	return win32.InterlockedExchangeAdd64(a, operand);
-}
-fetch_and :: proc(a: ^i64, operand: i64) -> i64 {
-	return win32.InterlockedAnd64(a, operand);
-}
-fetch_or :: proc(a: ^i64, operand: i64) -> i64 {
-	return win32.InterlockedOr64(a, operand);
-}
-spin_lock :: proc(a: ^i64, time_out: int) -> bool { // NOTE(bill) time_out = -1 as default
-	old_value := compare_exchange(a, 1, 0);
-	counter := 0;
-	for old_value != 0 && (time_out < 0 || counter < time_out) {
-		counter++;
-		yield_thread();
-		old_value = compare_exchange(a, 1, 0);
-		mfence();
-	}
-	return old_value == 0;
-}
-spin_unlock :: proc(a: ^i64) {
-	store(a, 0);
-	mfence();
-}
-try_acquire_lock :: proc(a: ^i64) -> bool {
-	yield_thread();
-	old_value := compare_exchange(a, 1, 0);
-	mfence();
-	return old_value == 0;
-}

core/atomics.odin

@@ -0,0 +1,100 @@
+// TODO(bill): Use assembly instead here to implement atomics
+// Inline vs external file?
+
+import win32 "sys/windows.odin" when ODIN_OS == "windows";
+var _ = compile_assert(ODIN_ARCH == "amd64"); // TODO(bill): x86 version
+
+
+proc yield_thread() { win32.mm_pause(); }
+proc mfence      () { win32.read_write_barrier(); }
+proc sfence      () { win32.write_barrier(); }
+proc lfence      () { win32.read_barrier(); }
+
+
+proc load(a: ^i32) -> i32 {
+	return a^;
+}
+proc store(a: ^i32, value: i32) {
+	a^ = value;
+}
+proc compare_exchange(a: ^i32, expected, desired: i32) -> i32 {
+	return win32.interlocked_compare_exchange(a, desired, expected);
+}
+proc exchanged(a: ^i32, desired: i32) -> i32 {
+	return win32.interlocked_exchange(a, desired);
+}
+proc fetch_add(a: ^i32, operand: i32) -> i32 {
+	return win32.interlocked_exchange_add(a, operand);
+
+}
+proc fetch_and(a: ^i32, operand: i32) -> i32 {
+	return win32.interlocked_and(a, operand);
+}
+proc fetch_or(a: ^i32, operand: i32) -> i32 {
+	return win32.interlocked_or(a, operand);
+}
+proc spin_lock(a: ^i32, time_out: int) -> bool { // NOTE(bill) time_out = -1 as default
+	var old_value = compare_exchange(a, 1, 0);
+	var counter = 0;
+	for old_value != 0 && (time_out < 0 || counter < time_out) {
+		counter++;
+		yield_thread();
+		old_value = compare_exchange(a, 1, 0);
+		mfence();
+	}
+	return old_value == 0;
+}
+proc spin_unlock(a: ^i32) {
+	store(a, 0);
+	mfence();
+}
+proc try_acquire_lock(a: ^i32) -> bool {
+	yield_thread();
+	var old_value = compare_exchange(a, 1, 0);
+	mfence();
+	return old_value == 0;
+}
+
+
+proc load(a: ^i64) -> i64 {
+	return a^;
+}
+proc store(a: ^i64, value: i64) {
+	a^ = value;
+}
+proc compare_exchange(a: ^i64, expected, desired: i64) -> i64 {
+	return win32.interlocked_compare_exchange64(a, desired, expected);
+}
+proc exchanged(a: ^i64, desired: i64) -> i64 {
+	return win32.interlocked_exchange64(a, desired);
+}
+proc fetch_add(a: ^i64, operand: i64) -> i64 {
+	return win32.interlocked_exchange_add64(a, operand);
+}
+proc fetch_and(a: ^i64, operand: i64) -> i64 {
+	return win32.interlocked_and64(a, operand);
+}
+proc fetch_or(a: ^i64, operand: i64) -> i64 {
+	return win32.interlocked_or64(a, operand);
+}
+proc spin_lock(a: ^i64, time_out: int) -> bool { // NOTE(bill) time_out = -1 as default
+	var old_value = compare_exchange(a, 1, 0);
+	var counter = 0;
+	for old_value != 0 && (time_out < 0 || counter < time_out) {
+		counter++;
+		yield_thread();
+		old_value = compare_exchange(a, 1, 0);
+		mfence();
+	}
+	return old_value == 0;
+}
+proc spin_unlock(a: ^i64) {
+	store(a, 0);
+	mfence();
+}
+proc try_acquire_lock(a: ^i64) -> bool {
+	yield_thread();
+	var old_value = compare_exchange(a, 1, 0);
+	mfence();
+	return old_value == 0;
+}

core/bits.odin

@@ -0,0 +1,287 @@
+const (
+	U8_MIN   =   u8(0);
+	U16_MIN  =  u16(0);
+	U32_MIN  =  u32(0);
+	U64_MIN  =  u64(0);
+	U128_MIN = u128(0);
+
+	I8_MIN   =   i8(-0x80);
+	I16_MIN  =  i16(-0x8000);
+	I32_MIN  =  i32(-0x8000_0000);
+	I64_MIN  =  i64(-0x8000_0000_0000_0000);
+	I128_MIN = i128(-0x8000_0000_0000_0000_0000_0000_0000_0000);
+
+	U8_MAX   =   ~u8(0);
+	U16_MAX  =  ~u16(0);
+	U32_MAX  =  ~u32(0);
+	U64_MAX  =  ~u64(0);
+	U128_MAX = ~u128(0);
+
+	I8_MAX   =   i8(0x7f);
+	I16_MAX  =  i16(0x7fff);
+	I32_MAX  =  i32(0x7fff_ffff);
+	I64_MAX  =  i64(0x7fff_ffff_ffff_ffff);
+	I128_MAX = i128(0x7fff_ffff_ffff_ffff_ffff_ffff_ffff_ffff);
+)
+
+proc count_ones(i:   u8) ->   u8 { foreign __llvm_core proc __llvm_ctpop(u8)   ->   u8 #link_name "llvm.ctpop.i8";  return __llvm_ctpop(i); }
+proc count_ones(i:   i8) ->   i8 { foreign __llvm_core proc __llvm_ctpop(i8)   ->   i8 #link_name "llvm.ctpop.i8";  return __llvm_ctpop(i); }
+proc count_ones(i:  u16) ->  u16 { foreign __llvm_core proc __llvm_ctpop(u16)  ->  u16 #link_name "llvm.ctpop.i16"; return __llvm_ctpop(i); }
+proc count_ones(i:  i16) ->  i16 { foreign __llvm_core proc __llvm_ctpop(i16)  ->  i16 #link_name "llvm.ctpop.i16"; return __llvm_ctpop(i); }
+proc count_ones(i:  u32) ->  u32 { foreign __llvm_core proc __llvm_ctpop(u32)  ->  u32 #link_name "llvm.ctpop.i32"; return __llvm_ctpop(i); }
+proc count_ones(i:  i32) ->  i32 { foreign __llvm_core proc __llvm_ctpop(i32)  ->  i32 #link_name "llvm.ctpop.i32"; return __llvm_ctpop(i); }
+proc count_ones(i:  u64) ->  u64 { foreign __llvm_core proc __llvm_ctpop(u64)  ->  u64 #link_name "llvm.ctpop.i64"; return __llvm_ctpop(i); }
+proc count_ones(i:  i64) ->  i64 { foreign __llvm_core proc __llvm_ctpop(i64)  ->  i64 #link_name "llvm.ctpop.i64"; return __llvm_ctpop(i); }
+proc count_ones(i: u128) -> u128 { foreign __llvm_core proc __llvm_ctpop(u128) -> u128 #link_name "llvm.ctpop.i128";return __llvm_ctpop(i); }
+proc count_ones(i: i128) -> i128 { foreign __llvm_core proc __llvm_ctpop(i128) -> i128 #link_name "llvm.ctpop.i128";return __llvm_ctpop(i); }
+proc count_ones(i: uint) -> uint { when size_of(uint) == size_of(u32) { return uint(count_ones(u32(i))); } else { return uint(count_ones(u64(i))); } }
+proc count_ones(i:  int) ->  int { when size_of(int)  == size_of(i32) { return int(count_ones(i32(i)));  } else { return int(count_ones(i64(i))); } }
+
+proc count_zeros(i:   u8) ->   u8 { return   8 - count_ones(i); }
+proc count_zeros(i:   i8) ->   i8 { return   8 - count_ones(i); }
+proc count_zeros(i:  u16) ->  u16 { return  16 - count_ones(i); }
+proc count_zeros(i:  i16) ->  i16 { return  16 - count_ones(i); }
+proc count_zeros(i:  u32) ->  u32 { return  32 - count_ones(i); }
+proc count_zeros(i:  i32) ->  i32 { return  32 - count_ones(i); }
+proc count_zeros(i:  u64) ->  u64 { return  64 - count_ones(i); }
+proc count_zeros(i:  i64) ->  i64 { return  64 - count_ones(i); }
+proc count_zeros(i: u128) -> u128 { return 128 - count_ones(i); }
+proc count_zeros(i: i128) -> i128 { return 128 - count_ones(i); }
+proc count_zeros(i: uint) -> uint { return 8*size_of(uint) - count_ones(i); }
+proc count_zeros(i:  int) ->  int { return 8*size_of(int)  - count_ones(i); }
+
+
+proc rotate_left(i: u8,   s: uint) ->   u8 { return (i << s)|(i >> (8*size_of(u8)   - s)); }
+proc rotate_left(i: i8,   s: uint) ->   i8 { return (i << s)|(i >> (8*size_of(i8)   - s)); }
+proc rotate_left(i: u16,  s: uint) ->  u16 { return (i << s)|(i >> (8*size_of(u16)  - s)); }
+proc rotate_left(i: i16,  s: uint) ->  i16 { return (i << s)|(i >> (8*size_of(i16)  - s)); }
+proc rotate_left(i: u32,  s: uint) ->  u32 { return (i << s)|(i >> (8*size_of(u32)  - s)); }
+proc rotate_left(i: i32,  s: uint) ->  i32 { return (i << s)|(i >> (8*size_of(i32)  - s)); }
+proc rotate_left(i: u64,  s: uint) ->  u64 { return (i << s)|(i >> (8*size_of(u64)  - s)); }
+proc rotate_left(i: i64,  s: uint) ->  i64 { return (i << s)|(i >> (8*size_of(i64)  - s)); }
+proc rotate_left(i: u128, s: uint) -> u128 { return (i << s)|(i >> (8*size_of(u128) - s)); }
+proc rotate_left(i: i128, s: uint) -> i128 { return (i << s)|(i >> (8*size_of(i128) - s)); }
+proc rotate_left(i: uint, s: uint) -> uint { when size_of(uint) == size_of(u32) { return uint(rotate_left(u32(i), s)); } else { return uint(rotate_left(u64(i), s)); } }
+proc rotate_left(i:  int, s: uint) ->  int { when size_of(int)  == size_of(i32) { return  int(rotate_left(i32(i), s)); } else { return  int(rotate_left(i64(i), s)); } }
+
+
+proc rotate_right(i: u8,   s: uint) ->   u8 { return (i >> s)|(i << (8*size_of(u8)   - s)); }
+proc rotate_right(i: i8,   s: uint) ->   i8 { return (i >> s)|(i << (8*size_of(i8)   - s)); }
+proc rotate_right(i: u16,  s: uint) ->  u16 { return (i >> s)|(i << (8*size_of(u16)  - s)); }
+proc rotate_right(i: i16,  s: uint) ->  i16 { return (i >> s)|(i << (8*size_of(i16)  - s)); }
+proc rotate_right(i: u32,  s: uint) ->  u32 { return (i >> s)|(i << (8*size_of(u32)  - s)); }
+proc rotate_right(i: i32,  s: uint) ->  i32 { return (i >> s)|(i << (8*size_of(i32)  - s)); }
+proc rotate_right(i: u64,  s: uint) ->  u64 { return (i >> s)|(i << (8*size_of(u64)  - s)); }
+proc rotate_right(i: i64,  s: uint) ->  i64 { return (i >> s)|(i << (8*size_of(i64)  - s)); }
+proc rotate_right(i: u128, s: uint) -> u128 { return (i >> s)|(i << (8*size_of(u128) - s)); }
+proc rotate_right(i: i128, s: uint) -> i128 { return (i >> s)|(i << (8*size_of(i128) - s)); }
+proc rotate_right(i: uint, s: uint) -> uint { when size_of(uint) == size_of(u32) { return uint(rotate_right(u32(i), s)); } else { return uint(rotate_right(u64(i), s)); } }
+proc rotate_right(i:  int, s: uint) ->  int { when size_of(int)  == size_of(i32) { return  int(rotate_right(i32(i), s)); } else { return  int(rotate_right(i64(i), s)); } }
+
+
+proc leading_zeros(i:   u8) ->   u8 { foreign __llvm_core proc __llvm_ctlz(u8,   bool) ->   u8 #link_name "llvm.ctlz.i8";  return __llvm_ctlz(i, false); }
+proc leading_zeros(i:   i8) ->   i8 { foreign __llvm_core proc __llvm_ctlz(i8,   bool) ->   i8 #link_name "llvm.ctlz.i8";  return __llvm_ctlz(i, false); }
+proc leading_zeros(i:  u16) ->  u16 { foreign __llvm_core proc __llvm_ctlz(u16,  bool) ->  u16 #link_name "llvm.ctlz.i16"; return __llvm_ctlz(i, false); }
+proc leading_zeros(i:  i16) ->  i16 { foreign __llvm_core proc __llvm_ctlz(i16,  bool) ->  i16 #link_name "llvm.ctlz.i16"; return __llvm_ctlz(i, false); }
+proc leading_zeros(i:  u32) ->  u32 { foreign __llvm_core proc __llvm_ctlz(u32,  bool) ->  u32 #link_name "llvm.ctlz.i32"; return __llvm_ctlz(i, false); }
+proc leading_zeros(i:  i32) ->  i32 { foreign __llvm_core proc __llvm_ctlz(i32,  bool) ->  i32 #link_name "llvm.ctlz.i32"; return __llvm_ctlz(i, false); }
+proc leading_zeros(i:  u64) ->  u64 { foreign __llvm_core proc __llvm_ctlz(u64,  bool) ->  u64 #link_name "llvm.ctlz.i64"; return __llvm_ctlz(i, false); }
+proc leading_zeros(i:  i64) ->  i64 { foreign __llvm_core proc __llvm_ctlz(i64,  bool) ->  i64 #link_name "llvm.ctlz.i64"; return __llvm_ctlz(i, false); }
+proc leading_zeros(i: u128) -> u128 { foreign __llvm_core proc __llvm_ctlz(u128, bool) -> u128 #link_name "llvm.ctlz.i128";return __llvm_ctlz(i, false); }
+proc leading_zeros(i: i128) -> i128 { foreign __llvm_core proc __llvm_ctlz(i128, bool) -> i128 #link_name "llvm.ctlz.i128";return __llvm_ctlz(i, false); }
+proc leading_zeros(i: uint) -> uint { when size_of(uint) == size_of(u32) { return uint(leading_zeros(u32(i))); } else { return uint(leading_zeros(u64(i))); } }
+proc leading_zeros(i:  int) ->  int { when size_of(int)  == size_of(i32) { return  int(leading_zeros(i32(i))); } else { return  int(leading_zeros(i64(i))); } }
+
+proc trailing_zeros(i:   u8) ->   u8 { foreign __llvm_core proc __llvm_cttz(u8,   bool) ->   u8 #link_name "llvm.cttz.i8";  return __llvm_cttz(i, false); }
+proc trailing_zeros(i:   i8) ->   i8 { foreign __llvm_core proc __llvm_cttz(i8,   bool) ->   i8 #link_name "llvm.cttz.i8";  return __llvm_cttz(i, false); }
+proc trailing_zeros(i:  u16) ->  u16 { foreign __llvm_core proc __llvm_cttz(u16,  bool) ->  u16 #link_name "llvm.cttz.i16"; return __llvm_cttz(i, false); }
+proc trailing_zeros(i:  i16) ->  i16 { foreign __llvm_core proc __llvm_cttz(i16,  bool) ->  i16 #link_name "llvm.cttz.i16"; return __llvm_cttz(i, false); }
+proc trailing_zeros(i:  u32) ->  u32 { foreign __llvm_core proc __llvm_cttz(u32,  bool) ->  u32 #link_name "llvm.cttz.i32"; return __llvm_cttz(i, false); }
+proc trailing_zeros(i:  i32) ->  i32 { foreign __llvm_core proc __llvm_cttz(i32,  bool) ->  i32 #link_name "llvm.cttz.i32"; return __llvm_cttz(i, false); }
+proc trailing_zeros(i:  u64) ->  u64 { foreign __llvm_core proc __llvm_cttz(u64,  bool) ->  u64 #link_name "llvm.cttz.i64"; return __llvm_cttz(i, false); }
+proc trailing_zeros(i:  i64) ->  i64 { foreign __llvm_core proc __llvm_cttz(i64,  bool) ->  i64 #link_name "llvm.cttz.i64"; return __llvm_cttz(i, false); }
+proc trailing_zeros(i: u128) -> u128 { foreign __llvm_core proc __llvm_cttz(u128, bool) -> u128 #link_name "llvm.cttz.i128";return __llvm_cttz(i, false); }
+proc trailing_zeros(i: i128) -> i128 { foreign __llvm_core proc __llvm_cttz(i128, bool) -> i128 #link_name "llvm.cttz.i128";return __llvm_cttz(i, false); }
+proc trailing_zeros(i: uint) -> uint { when size_of(uint) == size_of(u32) { return uint(trailing_zeros(u32(i))); } else { return uint(trailing_zeros(u64(i))); } }
+proc trailing_zeros(i:  int) ->  int { when size_of(int)  == size_of(i32) { return  int(trailing_zeros(i32(i))); } else { return  int(trailing_zeros(i64(i))); } }
+
+
+proc reverse_bits(i:   u8) ->   u8 { foreign __llvm_core proc __llvm_bitreverse(u8)   ->   u8 #link_name "llvm.bitreverse.i8";  return __llvm_bitreverse(i); }
+proc reverse_bits(i:   i8) ->   i8 { foreign __llvm_core proc __llvm_bitreverse(i8)   ->   i8 #link_name "llvm.bitreverse.i8";  return __llvm_bitreverse(i); }
+proc reverse_bits(i:  u16) ->  u16 { foreign __llvm_core proc __llvm_bitreverse(u16)  ->  u16 #link_name "llvm.bitreverse.i16"; return __llvm_bitreverse(i); }
+proc reverse_bits(i:  i16) ->  i16 { foreign __llvm_core proc __llvm_bitreverse(i16)  ->  i16 #link_name "llvm.bitreverse.i16"; return __llvm_bitreverse(i); }
+proc reverse_bits(i:  u32) ->  u32 { foreign __llvm_core proc __llvm_bitreverse(u32)  ->  u32 #link_name "llvm.bitreverse.i32"; return __llvm_bitreverse(i); }
+proc reverse_bits(i:  i32) ->  i32 { foreign __llvm_core proc __llvm_bitreverse(i32)  ->  i32 #link_name "llvm.bitreverse.i32"; return __llvm_bitreverse(i); }
+proc reverse_bits(i:  u64) ->  u64 { foreign __llvm_core proc __llvm_bitreverse(u64)  ->  u64 #link_name "llvm.bitreverse.i64"; return __llvm_bitreverse(i); }
+proc reverse_bits(i:  i64) ->  i64 { foreign __llvm_core proc __llvm_bitreverse(i64)  ->  i64 #link_name "llvm.bitreverse.i64"; return __llvm_bitreverse(i); }
+proc reverse_bits(i: u128) -> u128 { foreign __llvm_core proc __llvm_bitreverse(u128) -> u128 #link_name "llvm.bitreverse.i128";return __llvm_bitreverse(i); }
+proc reverse_bits(i: i128) -> i128 { foreign __llvm_core proc __llvm_bitreverse(i128) -> i128 #link_name "llvm.bitreverse.i128";return __llvm_bitreverse(i); }
+proc reverse_bits(i: uint) -> uint { when size_of(uint) == size_of(u32) { return uint(reverse_bits(u32(i))); } else { return uint(reverse_bits(u64(i))); } }
+proc reverse_bits(i:  int) ->  int { when size_of(int)  == size_of(i32) { return  int(reverse_bits(i32(i))); } else { return  int(reverse_bits(i64(i))); } }
+
+foreign __llvm_core {
+proc byte_swap(u16)  ->  u16 #link_name "llvm.bswap.i16";
+proc byte_swap(i16)  ->  i16 #link_name "llvm.bswap.i16";
+proc byte_swap(u32)  ->  u32 #link_name "llvm.bswap.i32";
+proc byte_swap(i32)  ->  i32 #link_name "llvm.bswap.i32";
+proc byte_swap(u64)  ->  u64 #link_name "llvm.bswap.i64";
+proc byte_swap(i64)  ->  i64 #link_name "llvm.bswap.i64";
+proc byte_swap(u128) -> u128 #link_name "llvm.bswap.i128";
+proc byte_swap(i128) -> i128 #link_name "llvm.bswap.i128";
+}
+proc byte_swap(i: uint) -> uint { when size_of(uint) == size_of(u32) { return uint(byte_swap(u32(i))); } else { return uint(byte_swap(u64(i))); } }
+proc byte_swap(i:  int) ->  int { when size_of(int)  == size_of(i32) { return  int(byte_swap(i32(i))); } else { return  int(byte_swap(i64(i))); } }
+
+proc from_be(i:   u8) ->   u8 { return i; }
+proc from_be(i:   i8) ->   i8 { return i; }
+proc from_be(i:  u16) ->  u16 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc from_be(i:  i16) ->  i16 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc from_be(i:  u32) ->  u32 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc from_be(i:  i32) ->  i32 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc from_be(i:  u64) ->  u64 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc from_be(i:  i64) ->  i64 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc from_be(i: u128) -> u128 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc from_be(i: i128) -> i128 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc from_be(i: uint) -> uint { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc from_be(i:  int) ->  int { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+
+proc from_le(i:   u8) ->   u8 { return i; }
+proc from_le(i:   i8) ->   i8 { return i; }
+proc from_le(i:  u16) ->  u16 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc from_le(i:  i16) ->  i16 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc from_le(i:  u32) ->  u32 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc from_le(i:  i32) ->  i32 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc from_le(i:  u64) ->  u64 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc from_le(i:  i64) ->  i64 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc from_le(i: u128) -> u128 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc from_le(i: i128) -> i128 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc from_le(i: uint) -> uint { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc from_le(i:  int) ->  int { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+
+proc to_be(i:   u8) ->   u8 { return i; }
+proc to_be(i:   i8) ->   i8 { return i; }
+proc to_be(i:  u16) ->  u16 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc to_be(i:  i16) ->  i16 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc to_be(i:  u32) ->  u32 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc to_be(i:  i32) ->  i32 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc to_be(i:  u64) ->  u64 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc to_be(i:  i64) ->  i64 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc to_be(i: u128) -> u128 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc to_be(i: i128) -> i128 { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc to_be(i: uint) -> uint { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+proc to_be(i:  int) ->  int { when ODIN_ENDIAN == "big" { return i; } else { return byte_swap(i); } }
+
+
+proc to_le(i:   u8) ->   u8 { return i; }
+proc to_le(i:   i8) ->   i8 { return i; }
+proc to_le(i:  u16) ->  u16 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc to_le(i:  i16) ->  i16 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc to_le(i:  u32) ->  u32 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc to_le(i:  i32) ->  i32 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc to_le(i:  u64) ->  u64 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc to_le(i:  i64) ->  i64 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc to_le(i: u128) -> u128 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc to_le(i: i128) -> i128 { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc to_le(i: uint) -> uint { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+proc to_le(i:  int) ->  int { when ODIN_ENDIAN == "little" { return i; } else { return byte_swap(i); } }
+
+
+proc overflowing_add(lhs, rhs:   u8) -> (u8, bool)   { foreign __llvm_core proc op(u8, u8)     -> (u8, bool)   #link_name "llvm.uadd.with.overflow.i8";   return op(lhs, rhs); }
+proc overflowing_add(lhs, rhs:   i8) -> (i8, bool)   { foreign __llvm_core proc op(i8, i8)     -> (i8, bool)   #link_name "llvm.sadd.with.overflow.i8";   return op(lhs, rhs); }
+proc overflowing_add(lhs, rhs:  u16) -> (u16, bool)  { foreign __llvm_core proc op(u16, u16)   -> (u16, bool)  #link_name "llvm.uadd.with.overflow.i16";  return op(lhs, rhs); }
+proc overflowing_add(lhs, rhs:  i16) -> (i16, bool)  { foreign __llvm_core proc op(i16, i16)   -> (i16, bool)  #link_name "llvm.sadd.with.overflow.i16";  return op(lhs, rhs); }
+proc overflowing_add(lhs, rhs:  u32) -> (u32, bool)  { foreign __llvm_core proc op(u32, u32)   -> (u32, bool)  #link_name "llvm.uadd.with.overflow.i32";  return op(lhs, rhs); }
+proc overflowing_add(lhs, rhs:  i32) -> (i32, bool)  { foreign __llvm_core proc op(i32, i32)   -> (i32, bool)  #link_name "llvm.sadd.with.overflow.i32";  return op(lhs, rhs); }
+proc overflowing_add(lhs, rhs:  u64) -> (u64, bool)  { foreign __llvm_core proc op(u64, u64)   -> (u64, bool)  #link_name "llvm.uadd.with.overflow.i64";  return op(lhs, rhs); }
+proc overflowing_add(lhs, rhs:  i64) -> (i64, bool)  { foreign __llvm_core proc op(i64, i64)   -> (i64, bool)  #link_name "llvm.sadd.with.overflow.i64";  return op(lhs, rhs); }
+proc overflowing_add(lhs, rhs: u128) -> (u128, bool) { foreign __llvm_core proc op(u128, u128) -> (u128, bool) #link_name "llvm.uadd.with.overflow.i128"; return op(lhs, rhs); }
+proc overflowing_add(lhs, rhs: i128) -> (i128, bool) { foreign __llvm_core proc op(i128, i128) -> (i128, bool) #link_name "llvm.sadd.with.overflow.i128"; return op(lhs, rhs); }
+proc overflowing_add(lhs, rhs: uint) -> (uint, bool) {
+	when size_of(uint) == size_of(u32) {
+		var x, ok = overflowing_add(u32(lhs), u32(rhs));
+		return uint(x), ok;
+	} else {
+		var x, ok = overflowing_add(u64(lhs), u64(rhs));
+		return uint(x), ok;
+	}
+}
+proc overflowing_add(lhs, rhs: int) -> (int, bool) {
+	when size_of(int) == size_of(i32) {
+		var x, ok = overflowing_add(i32(lhs), i32(rhs));
+		return int(x), ok;
+	} else {
+		var x, ok = overflowing_add(i64(lhs), i64(rhs));
+		return int(x), ok;
+	}
+}
+
+proc overflowing_sub(lhs, rhs:   u8) -> (u8, bool)   { foreign __llvm_core proc op(u8, u8)     -> (u8, bool)   #link_name "llvm.usub.with.overflow.i8";   return op(lhs, rhs); }
+proc overflowing_sub(lhs, rhs:   i8) -> (i8, bool)   { foreign __llvm_core proc op(i8, i8)     -> (i8, bool)   #link_name "llvm.ssub.with.overflow.i8";   return op(lhs, rhs); }
+proc overflowing_sub(lhs, rhs:  u16) -> (u16, bool)  { foreign __llvm_core proc op(u16, u16)   -> (u16, bool)  #link_name "llvm.usub.with.overflow.i16";  return op(lhs, rhs); }
+proc overflowing_sub(lhs, rhs:  i16) -> (i16, bool)  { foreign __llvm_core proc op(i16, i16)   -> (i16, bool)  #link_name "llvm.ssub.with.overflow.i16";  return op(lhs, rhs); }
+proc overflowing_sub(lhs, rhs:  u32) -> (u32, bool)  { foreign __llvm_core proc op(u32, u32)   -> (u32, bool)  #link_name "llvm.usub.with.overflow.i32";  return op(lhs, rhs); }
+proc overflowing_sub(lhs, rhs:  i32) -> (i32, bool)  { foreign __llvm_core proc op(i32, i32)   -> (i32, bool)  #link_name "llvm.ssub.with.overflow.i32";  return op(lhs, rhs); }
+proc overflowing_sub(lhs, rhs:  u64) -> (u64, bool)  { foreign __llvm_core proc op(u64, u64)   -> (u64, bool)  #link_name "llvm.usub.with.overflow.i64";  return op(lhs, rhs); }
+proc overflowing_sub(lhs, rhs:  i64) -> (i64, bool)  { foreign __llvm_core proc op(i64, i64)   -> (i64, bool)  #link_name "llvm.ssub.with.overflow.i64";  return op(lhs, rhs); }
+proc overflowing_sub(lhs, rhs: u128) -> (u128, bool) { foreign __llvm_core proc op(u128, u128) -> (u128, bool) #link_name "llvm.usub.with.overflow.i128"; return op(lhs, rhs); }
+proc overflowing_sub(lhs, rhs: i128) -> (i128, bool) { foreign __llvm_core proc op(i128, i128) -> (i128, bool) #link_name "llvm.ssub.with.overflow.i128"; return op(lhs, rhs); }
+proc overflowing_sub(lhs, rhs: uint) -> (uint, bool) {
+	when size_of(uint) == size_of(u32) {
+		var x, ok = overflowing_sub(u32(lhs), u32(rhs));
+		return uint(x), ok;
+	} else {
+		var x, ok = overflowing_sub(u64(lhs), u64(rhs));
+		return uint(x), ok;
+	}
+}
+proc overflowing_sub(lhs, rhs: int) -> (int, bool) {
+	when size_of(int) == size_of(i32) {
+		var x, ok = overflowing_sub(i32(lhs), i32(rhs));
+		return int(x), ok;
+	} else {
+		var x, ok = overflowing_sub(i64(lhs), i64(rhs));
+		return int(x), ok;
+	}
+}
+
+proc overflowing_mul(lhs, rhs:   u8) -> (u8, bool)   { foreign __llvm_core proc op(u8, u8)     -> (u8, bool)   #link_name "llvm.umul.with.overflow.i8";   return op(lhs, rhs); }
+proc overflowing_mul(lhs, rhs:   i8) -> (i8, bool)   { foreign __llvm_core proc op(i8, i8)     -> (i8, bool)   #link_name "llvm.smul.with.overflow.i8";   return op(lhs, rhs); }
+proc overflowing_mul(lhs, rhs:  u16) -> (u16, bool)  { foreign __llvm_core proc op(u16, u16)   -> (u16, bool)  #link_name "llvm.umul.with.overflow.i16";  return op(lhs, rhs); }
+proc overflowing_mul(lhs, rhs:  i16) -> (i16, bool)  { foreign __llvm_core proc op(i16, i16)   -> (i16, bool)  #link_name "llvm.smul.with.overflow.i16";  return op(lhs, rhs); }
+proc overflowing_mul(lhs, rhs:  u32) -> (u32, bool)  { foreign __llvm_core proc op(u32, u32)   -> (u32, bool)  #link_name "llvm.umul.with.overflow.i32";  return op(lhs, rhs); }
+proc overflowing_mul(lhs, rhs:  i32) -> (i32, bool)  { foreign __llvm_core proc op(i32, i32)   -> (i32, bool)  #link_name "llvm.smul.with.overflow.i32";  return op(lhs, rhs); }
+proc overflowing_mul(lhs, rhs:  u64) -> (u64, bool)  { foreign __llvm_core proc op(u64, u64)   -> (u64, bool)  #link_name "llvm.umul.with.overflow.i64";  return op(lhs, rhs); }
+proc overflowing_mul(lhs, rhs:  i64) -> (i64, bool)  { foreign __llvm_core proc op(i64, i64)   -> (i64, bool)  #link_name "llvm.smul.with.overflow.i64";  return op(lhs, rhs); }
+proc overflowing_mul(lhs, rhs: u128) -> (u128, bool) { foreign __llvm_core proc op(u128, u128) -> (u128, bool) #link_name "llvm.umul.with.overflow.i128"; return op(lhs, rhs); }
+proc overflowing_mul(lhs, rhs: i128) -> (i128, bool) { foreign __llvm_core proc op(i128, i128) -> (i128, bool) #link_name "llvm.smul.with.overflow.i128"; return op(lhs, rhs); }
+proc overflowing_mul(lhs, rhs: uint) -> (uint, bool) {
+	when size_of(uint) == size_of(u32) {
+		var x, ok = overflowing_mul(u32(lhs), u32(rhs));
+		return uint(x), ok;
+	} else {
+		var x, ok = overflowing_mul(u64(lhs), u64(rhs));
+		return uint(x), ok;
+	}
+}
+proc overflowing_mul(lhs, rhs: int) -> (int, bool) {
+	when size_of(int) == size_of(i32) {
+		var x, ok = overflowing_mul(i32(lhs), i32(rhs));
+		return int(x), ok;
+	} else {
+		var x, ok = overflowing_mul(i64(lhs), i64(rhs));
+		return int(x), ok;
+	}
+}
+
+proc is_power_of_two(i:   u8) -> bool { return i > 0 && (i & (i-1)) == 0; }
+proc is_power_of_two(i:   i8) -> bool { return i > 0 && (i & (i-1)) == 0; }
+proc is_power_of_two(i:  u16) -> bool { return i > 0 && (i & (i-1)) == 0; }
+proc is_power_of_two(i:  i16) -> bool { return i > 0 && (i & (i-1)) == 0; }
+proc is_power_of_two(i:  u32) -> bool { return i > 0 && (i & (i-1)) == 0; }
+proc is_power_of_two(i:  i32) -> bool { return i > 0 && (i & (i-1)) == 0; }
+proc is_power_of_two(i:  u64) -> bool { return i > 0 && (i & (i-1)) == 0; }
+proc is_power_of_two(i:  i64) -> bool { return i > 0 && (i & (i-1)) == 0; }
+proc is_power_of_two(i: u128) -> bool { return i > 0 && (i & (i-1)) == 0; }
+proc is_power_of_two(i: i128) -> bool { return i > 0 && (i & (i-1)) == 0; }
+proc is_power_of_two(i: uint) -> bool { return i > 0 && (i & (i-1)) == 0; }
+proc is_power_of_two(i:  int) -> bool { return i > 0 && (i & (i-1)) == 0; }

core/decimal.odin

@@ -2,53 +2,51 @@
 // Multiple precision decimal numbers
 // NOTE: This is only for floating point printing and nothing else
 
-Decimal :: struct {
-	digits:        [384]byte, // big-endian digits
+type Decimal struct {
+	digits:        [384]u8, // big-endian digits
 	count:         int,
 	decimal_point: int,
 	neg, trunc:    bool,
 }
 
-decimal_to_string :: proc(buf: []byte, a: ^Decimal) -> string {
-	digit_zero :: proc(buf: []byte) -> int {
-		for _, i in buf {
-			buf[i] = '0';
-		}
-		return buf.count;
+proc decimal_to_string(buf: []u8, a: ^Decimal) -> string {
+	proc digit_zero(buf: []u8) -> int {
+		for _, i in buf -> buf[i] = '0';
+		return len(buf);
 	}
 
 
-	n := 10 + a.count + abs(a.decimal_point);
+	var n = 10 + a.count + abs(a.decimal_point);
 
 	// TODO(bill): make this work with a buffer that's not big enough
-	assert(buf.count >= n);
-	buf = buf[..n];
+	assert(len(buf) >= n);
+	buf = buf[0..<n];
 
 	if a.count == 0 {
 		buf[0] = '0';
-		return cast(string)buf[0..1];
+		return string(buf[0..<1]);
 	}
 
-	w := 0;
+	var w = 0;
 	if a.decimal_point <= 0 {
 		buf[w] = '0'; w++;
 		buf[w] = '.'; w++;
-		w += digit_zero(buf[w .. w-a.decimal_point]);
-		w += copy(buf[w..], a.digits[0..a.count]);
+		w += digit_zero(buf[w ..< w-a.decimal_point]);
+		w += copy(buf[w..], a.digits[0..<a.count]);
 	} else if a.decimal_point < a.count {
-		w += copy(buf[w..], a.digits[0..a.decimal_point]);
+		w += copy(buf[w..], a.digits[0..<a.decimal_point]);
 		buf[w] = '.'; w++;
-		w += copy(buf[w..], a.digits[a.decimal_point .. a.count]);
+		w += copy(buf[w..], a.digits[a.decimal_point ..< a.count]);
 	} else {
-		w += copy(buf[w..], a.digits[0..a.count]);
-		w += digit_zero(buf[w .. w+a.decimal_point-a.count]);
+		w += copy(buf[w..], a.digits[0..<a.count]);
+		w += digit_zero(buf[w ..< w+a.decimal_point-a.count]);
 	}
 
-	return cast(string)buf[0..w];
+	return string(buf[0..<w]);
 }
 
 // trim trailing zeros
-trim :: proc(a: ^Decimal) {
+proc trim(a: ^Decimal) {
 	for a.count > 0 && a.digits[a.count-1] == '0' {
 		a.count--;
 	}
@@ -58,13 +56,13 @@ trim :: proc(a: ^Decimal) {
 }
 
 
-assign :: proc(a: ^Decimal, i: u64) {
-	buf: [32]byte;
-	n := 0;
+proc assign(a: ^Decimal, i: u64) {
+	var buf: [32]u8;
+	var n = 0;
 	for i > 0 {
-		j := i/10;
+		var j = i/10;
 		i -= 10*j;
-		buf[n] = cast(byte)('0'+i);
+		buf[n] = u8('0'+i);
 		n++;
 		i = j;
 	}
@@ -78,14 +76,13 @@ assign :: proc(a: ^Decimal, i: u64) {
 	trim(a);
 }
 
-uint_size :: 8*size_of(uint);
-max_shift :: uint_size-4;
 
-shift_right :: proc(a: ^Decimal, k: uint) {
-	r := 0; // read index
-	w := 0; // write index
 
-	n: uint;
+proc shift_right(a: ^Decimal, k: uint) {
+	var r = 0; // read index
+	var w = 0; // write index
+
+	var n: uint;
 	for ; n>>k == 0; r++ {
 		if r >= a.count {
 			if n == 0 {
@@ -99,27 +96,27 @@ shift_right :: proc(a: ^Decimal, k: uint) {
 			}
 			break;
 		}
-		c := cast(uint)a.digits[r];
+		var c = uint(a.digits[r]);
 		n = n*10 + c - '0';
 	}
 	a.decimal_point -= r-1;
 
-	mask: uint = (1<<k) - 1;
+	var mask: uint = (1<<k) - 1;
 
 	for ; r < a.count; r++ {
-		c := cast(uint)a.digits[r];
-		dig := n>>k;
+		var c = uint(a.digits[r]);
+		var dig = n>>k;
 		n &= mask;
-		a.digits[w] = cast(byte)('0' + dig);
+		a.digits[w] = u8('0' + dig);
 		w++;
 		n = n*10 + c - '0';
 	}
 
 	for n > 0 {
-		dig := n>>k;
+		var dig = n>>k;
 		n &= mask;
-		if w < a.digits.count {
-			a.digits[w] = cast(byte)('0' + dig);
+		if w < len(a.digits) {
+			a.digits[w] = u8('0' + dig);
 			w++;
 		} else if dig > 0 {
 			a.trunc = true;
@@ -132,20 +129,20 @@ shift_right :: proc(a: ^Decimal, k: uint) {
 	trim(a);
 }
 
-shift_left :: proc(a: ^Decimal, k: uint) {
-	delta := cast(int)(k/4);
+proc shift_left(a: ^Decimal, k: uint) {
+	var delta = int(k/4);
 
-	r := a.count;       // read index
-	w := a.count+delta; // write index
+	var r = a.count;       // read index
+	var w = a.count+delta; // write index
 
-	n: uint;
+	var n: uint;
 	for r--; r >= 0; r-- {
-		n += (cast(uint)a.digits[r] - '0') << k;
-		quo := n/10;
-		rem := n - 10*quo;
+		n += (uint(a.digits[r]) - '0') << k;
+		var quo = n/10;
+		var rem = n - 10*quo;
 		w--;
-		if w < a.digits.count {
-			a.digits[w] = cast(byte)('0' + rem);
+		if w < len(a.digits) {
+			a.digits[w] = u8('0' + rem);
 		} else if rem != 0 {
 			a.trunc = true;
 		}
@@ -153,11 +150,11 @@ shift_left :: proc(a: ^Decimal, k: uint) {
 	}
 
 	for n > 0 {
-		quo := n/10;
-		rem := n - 10*quo;
+		var quo = n/10;
+		var rem = n - 10*quo;
 		w--;
-		if w < a.digits.count {
-			a.digits[w] = cast(byte)('0' + rem);
+		if 0 <= w && w < len(a.digits) {
+			a.digits[w] = u8('0' + rem);
 		} else if rem != 0 {
 			a.trunc = true;
 		}
@@ -165,12 +162,17 @@ shift_left :: proc(a: ^Decimal, k: uint) {
 	}
 
 	a.count += delta;
-	a.count = min(a.count, a.digits.count);
+	a.count = min(a.count, len(a.digits));
 	a.decimal_point += delta;
 	trim(a);
 }
 
-shift :: proc(a: ^Decimal, k: int) {
+proc shift(a: ^Decimal, k: int) {
+	const (
+		uint_size = 8*size_of(uint);
+		max_shift = uint_size-4;
+	)
+
 	match {
 	case a.count == 0:
 		// no need to update
@@ -179,7 +181,7 @@ shift :: proc(a: ^Decimal, k: int) {
 			shift_left(a, max_shift);
 			k -= max_shift;
 		}
-		shift_left(a, cast(uint)k);
+		shift_left(a, uint(k));
 
 
 	case k < 0:
@@ -187,23 +189,21 @@ shift :: proc(a: ^Decimal, k: int) {
 			shift_right(a, max_shift);
 			k += max_shift;
 		}
-		shift_right(a, cast(uint)-k);
+		shift_right(a, uint(-k));
 	}
 }
 
-can_round_up :: proc(a: ^Decimal, nd: int) -> bool {
+proc can_round_up(a: ^Decimal, nd: int) -> bool {
 	if nd < 0 || nd >= a.count { return false ; }
 	if a.digits[nd] == '5' && nd+1 == a.count {
-		if a.trunc {
-			return true;
-		}
+		if a.trunc -> return true;
 		return nd > 0 && (a.digits[nd-1]-'0')%2 != 0;
 	}
 
 	return a.digits[nd] >= '5';
 }
 
-round :: proc(a: ^Decimal, nd: int) {
+proc round(a: ^Decimal, nd: int) {
 	if nd < 0 || nd >= a.count { return; }
 	if can_round_up(a, nd) {
 		round_up(a, nd);
@@ -212,11 +212,11 @@ round :: proc(a: ^Decimal, nd: int) {
 	}
 }
 
-round_up :: proc(a: ^Decimal, nd: int) {
+proc round_up(a: ^Decimal, nd: int) {
 	if nd < 0 || nd >= a.count { return; }
 
-	for i := nd-1; i >= 0; i-- {
-		if c := a.digits[i]; c < '9' {
+	for var i = nd-1; i >= 0; i-- {
+		if var c = a.digits[i]; c < '9' {
 			a.digits[i]++;
 			a.count = i+1;
 			return;
@@ -229,7 +229,7 @@ round_up :: proc(a: ^Decimal, nd: int) {
 	a.decimal_point++;
 }
 
-round_down :: proc(a: ^Decimal, nd: int) {
+proc round_down(a: ^Decimal, nd: int) {
 	if nd < 0 || nd >= a.count { return; }
 	a.count = nd;
 	trim(a);
@@ -237,15 +237,15 @@ round_down :: proc(a: ^Decimal, nd: int) {
 
 
 // Extract integer part, rounded appropriately. There are no guarantees about overflow.
-rounded_integer :: proc(a: ^Decimal) -> u64 {
+proc rounded_integer(a: ^Decimal) -> u64 {
 	if a.decimal_point > 20 {
 		return 0xffff_ffff_ffff_ffff;
 	}
-	i: int;
-	n: u64 = 0;
-	m := min(a.decimal_point, a.count);
+	var i: int;
+	var n: u64 = 0;
+	var m = min(a.decimal_point, a.count);
 	for i = 0; i < m; i++ {
-		n = n*10 + cast(u64)(a.digits[i]-'0');
+		n = n*10 + u64(a.digits[i]-'0');
 	}
 	for ; i < a.decimal_point; i++ {
 		n *= 10;

core/hash.odin

@@ -1,61 +1,65 @@
-crc32 :: proc(data: []byte) -> u32 {
-	result := ~cast(u32)0;
+proc crc32(data: []u8) -> u32 {
+	var result = ~u32(0);
 	for b in data {
-		result = result>>8 ~ _crc32_table[(result ~ cast(u32)b) & 0xff];
+		result = result>>8 ~ _crc32_table[(result ~ u32(b)) & 0xff];
 	}
 	return ~result;
 }
-crc64 :: proc(data: []byte) -> u64 {
-	result := ~cast(u64)0;
+proc crc64(data: []u8) -> u64 {
+	var result = ~u64(0);
 	for b in data {
-		result = result>>8 ~ _crc64_table[(result ~ cast(u64)b) & 0xff];
+		result = result>>8 ~ _crc64_table[(result ~ u64(b)) & 0xff];
 	}
 	return ~result;
 }
 
-fnv32 :: proc(data: []byte) -> u32 {
-	h: u32 = 0x811c9dc5;
+proc fnv32(data: []u8) -> u32 {
+	var h: u32 = 0x811c9dc5;
 	for b in data {
-		h = (h * 0x01000193) ~ cast(u32)b;
+		h = (h * 0x01000193) ~ u32(b);
 	}
 	return h;
 }
 
-fnv64 :: proc(data: []byte) -> u64 {
-	h: u64 = 0xcbf29ce484222325;
+proc fnv64(data: []u8) -> u64 {
+	var h: u64 = 0xcbf29ce484222325;
 	for b in data {
-		h = (h * 0x100000001b3) ~ cast(u64)b;
+		h = (h * 0x100000001b3) ~ u64(b);
 	}
 	return h;
 }
 
-fnv32a :: proc(data: []byte) -> u32 {
-	h: u32 = 0x811c9dc5;
+proc fnv32a(data: []u8) -> u32 {
+	var h: u32 = 0x811c9dc5;
 	for b in data {
-		h = (h ~ cast(u32)b) * 0x01000193;
+		h = (h ~ u32(b)) * 0x01000193;
 	}
 	return h;
 }
 
-fnv64a :: proc(data: []byte) -> u64 {
-	h: u64 = 0xcbf29ce484222325;
+proc fnv64a(data: []u8) -> u64 {
+	var h: u64 = 0xcbf29ce484222325;
 	for b in data {
-		h = (h ~ cast(u64)b) * 0x100000001b3;
+		h = (h ~ u64(b)) * 0x100000001b3;
 	}
 	return h;
 }
 
-murmur32 :: proc(data: []byte) -> u32 {
-	c1_32: u32 : 0xcc9e2d51;
-	c2_32: u32 : 0x1b873593;
+proc murmur32(data: []u8) -> u32 {
+	const (
+		c1_32: u32 = 0xcc9e2d51;
+		c2_32: u32 = 0x1b873593;
+	)
 
-	h1: u32 = 0;
-	nblocks := data.count/4;
-	p := data.data;
-	p1 := p + 4*nblocks;
+	var (
+		h1: u32 = 0;
+		nblocks = len(data)/4;
+		p = &data[0];
+		p1 = p + 4*nblocks;
+	)
 
 	for ; p < p1; p += 4 {
-		k1 := (cast(^u32)p)^;
+		var k1 = ^u32(p)^;
 
 		k1 *= c1_32;
 		k1 = (k1 << 15) | (k1 >> 17);
@@ -66,25 +70,24 @@ murmur32 :: proc(data: []byte) -> u32 {
 		h1 = h1*5 + 0xe6546b64;
 	}
 
-	tail := data[nblocks*4 ..];
-
-	k1: u32;
-	match tail.count&3 {
+	var tail = data[nblocks*4 ..];
+	var k1: u32;
+	match len(tail)&3 {
 	case 3:
-		k1 ~= cast(u32)tail[2] << 16;
+		k1 ~= u32(tail[2]) << 16;
 		fallthrough;
 	case 2:
-		k1 ~= cast(u32)tail[2] << 8;
+		k1 ~= u32(tail[2]) << 8;
 		fallthrough;
 	case 1:
-		k1 ~= cast(u32)tail[0];
+		k1 ~= u32(tail[0]);
 		k1 *= c1_32;
 		k1 = (k1 << 15) | (k1 >> 17) ;
 		k1 *= c2_32;
 		h1 ~= k1;
 	}
 
-	h1 ~= cast(u32)data.count;
+	h1 ~= u32(len(data));
 
 	h1 ~= h1 >> 16;
 	h1 *= 0x85ebca6b;
@@ -95,18 +98,20 @@ murmur32 :: proc(data: []byte) -> u32 {
 	return h1;
 }
 
-murmur64 :: proc(data: []byte) -> u64 {
-	SEED :: 0x9747b28c;
+proc murmur64(data: []u8) -> u64 {
+	const SEED = 0x9747b28c;
 
-	when false && size_of(int) == 8 {
-		m :: 0xc6a4a7935bd1e995;
-		r :: 47;
+	when size_of(int) == 8 {
+		const (
+			m = 0xc6a4a7935bd1e995;
+			r = 47;
+		)
 
-		h: u64 = SEED ~ (cast(u64)data.count * m);
-		data64 := slice_ptr(cast(^u64)^data[0], data.count/size_of(u64));
+		var h: u64 = SEED ~ (u64(len(data)) * m);
+		var data64 = slice_ptr(^u64(&data[0]), len(data)/size_of(u64));
 
 		for _, i in data64 {
-			k := data64[i];
+			var k = data64[i];
 
 			k *= m;
 			k ~= k>>r;
@@ -116,15 +121,15 @@ murmur64 :: proc(data: []byte) -> u64 {
 			h *= m;
 		}
 
-		match data.count&7 {
-		case 7: h ~= cast(u64)data[6] << 48; fallthrough;
-		case 6: h ~= cast(u64)data[5] << 40; fallthrough;
-		case 5: h ~= cast(u64)data[4] << 32; fallthrough;
-		case 4: h ~= cast(u64)data[3] << 24; fallthrough;
-		case 3: h ~= cast(u64)data[2] << 16; fallthrough;
-		case 2: h ~= cast(u64)data[1] << 8;  fallthrough;
+		match len(data)&7 {
+		case 7: h ~= u64(data[6]) << 48; fallthrough;
+		case 6: h ~= u64(data[5]) << 40; fallthrough;
+		case 5: h ~= u64(data[4]) << 32; fallthrough;
+		case 4: h ~= u64(data[3]) << 24; fallthrough;
+		case 3: h ~= u64(data[2]) << 16; fallthrough;
+		case 2: h ~= u64(data[1]) << 8;  fallthrough;
 		case 1:
-			h ~= cast(u64)data[0];
+			h ~= u64(data[0]);
 			h *= m;
 		}
 
@@ -134,18 +139,21 @@ murmur64 :: proc(data: []byte) -> u64 {
 
 		return h;
 	} else {
-		m :: 0x5bd1e995;
-		r :: 24;
+		const (
+			m = 0x5bd1e995;
+			r = 24;
+		)
 
-		h1: u32 = cast(u32)SEED ~ cast(u32)data.count;
-		h2: u32 = SEED >> 32;
+		var (
+			h1 = u32(SEED) ~ u32(len(data));
+			h2 = u32(SEED) >> 32;
+			data32 = slice_ptr(^u32(&data[0]), len(data)/size_of(u32));
+			len = len(data);
+			i = 0;
+		)
 
-		data32 := slice_ptr(cast(^u32)^data[0], data.count/size_of(u32));
-		len := data.count;
-
-		i := 0;
 		for len >= 8 {
-			k1, k2: u32;
+			var k1, k2: u32;
 			k1 = data32[i]; i++;
 			k1 *= m;
 			k1 ~= k1>>r;
@@ -164,7 +172,7 @@ murmur64 :: proc(data: []byte) -> u64 {
 		}
 
 		if len >= 4 {
-			k1: u32;
+			var k1: u32;
 			k1 = data32[i]; i++;
 			k1 *= m;
 			k1 ~= k1>>r;
@@ -174,16 +182,17 @@ murmur64 :: proc(data: []byte) -> u64 {
 			len -= 4;
 		}
 
-		data8 := slice_to_bytes(data32[i..])[..3];
+		// TODO(bill): Fix this
+		#no_bounds_check var data8 = slice_to_bytes(data32[i..])[0..<3];
 		match len {
 		case 3:
-			h2 ~= cast(u32)data8[2] << 16;
+			h2 ~= u32(data8[2]) << 16;
 			fallthrough;
 		case 2:
-			h2 ~= cast(u32)data8[1] << 8;
+			h2 ~= u32(data8[1]) << 8;
 			fallthrough;
 		case 1:
-			h2 ~= cast(u32)data8[0];
+			h2 ~= u32(data8[0]);
 			h2 *= m;
 		}
 
@@ -196,13 +205,12 @@ murmur64 :: proc(data: []byte) -> u64 {
 		h2 ~= h1>>19;
 		h2 *= m;
 
-		h := cast(u64)(h1)<<32 | cast(u64)(h2);
-		return h;
+		return u64(h1)<<32 | u64(h2);
 	}
 }
 
 
-immutable _crc32_table := [256]u32{
+var _crc32_table = [256]u32{
 	0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
 	0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
 	0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
@@ -268,7 +276,7 @@ immutable _crc32_table := [256]u32{
 	0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
 	0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
 };
-immutable _crc64_table := [256]u64{
+var _crc64_table = [256]u64{
 	0x0000000000000000, 0x42f0e1eba9ea3693, 0x85e1c3d753d46d26, 0xc711223cfa3e5bb5,
 	0x493366450e42ecdf, 0x0bc387aea7a8da4c, 0xccd2a5925d9681f9, 0x8e224479f47cb76a,
 	0x9266cc8a1c85d9be, 0xd0962d61b56fef2d, 0x17870f5d4f51b498, 0x5577eeb6e6bb820b,

core/math.odin

@@ -1,98 +1,108 @@
-TAU          :: 6.28318530717958647692528676655900576;
-PI           :: 3.14159265358979323846264338327950288;
-ONE_OVER_TAU :: 0.636619772367581343075535053490057448;
-ONE_OVER_PI  :: 0.159154943091895335768883763372514362;
+const (
+	TAU          = 6.28318530717958647692528676655900576;
+	PI           = 3.14159265358979323846264338327950288;
+	ONE_OVER_TAU = 0.636619772367581343075535053490057448;
+	ONE_OVER_PI  = 0.159154943091895335768883763372514362;
 
-E            :: 2.71828182845904523536;
-SQRT_TWO     :: 1.41421356237309504880168872420969808;
-SQRT_THREE   :: 1.73205080756887729352744634150587236;
-SQRT_FIVE    :: 2.23606797749978969640917366873127623;
+	E            = 2.71828182845904523536;
+	SQRT_TWO     = 1.41421356237309504880168872420969808;
+	SQRT_THREE   = 1.73205080756887729352744634150587236;
+	SQRT_FIVE    = 2.23606797749978969640917366873127623;
 
-LOG_TWO      :: 0.693147180559945309417232121458176568;
-LOG_TEN      :: 2.30258509299404568401799145468436421;
+	LOG_TWO      = 0.693147180559945309417232121458176568;
+	LOG_TEN      = 2.30258509299404568401799145468436421;
 
-EPSILON      :: 1.19209290e-7;
+	EPSILON      = 1.19209290e-7;
 
-τ :: TAU;
-π :: PI;
+	τ = TAU;
+	π = PI;
+)
+type (
+	Vec2 [vector 2]f32;
+	Vec3 [vector 3]f32;
+	Vec4 [vector 4]f32;
 
-Vec2 :: [vector 2]f32;
-Vec3 :: [vector 3]f32;
-Vec4 :: [vector 4]f32;
+	// Column major
+	Mat2 [2][2]f32;
+	Mat3 [3][3]f32;
+	Mat4 [4][4]f32;
 
-Mat2 :: [2]Vec2;
-Mat3 :: [3]Vec3;
-Mat4 :: [4]Vec4;
+	Complex complex64;
+)
 
-sqrt :: proc(x: f32) -> f32 #foreign __llvm_core "llvm.sqrt.f32";
-sqrt :: proc(x: f64) -> f64 #foreign __llvm_core "llvm.sqrt.f64";
+foreign __llvm_core {
+	proc sqrt(x: f32) -> f32          #link_name "llvm.sqrt.f32";
+	proc sqrt(x: f64) -> f64          #link_name "llvm.sqrt.f64";
 
-sin  :: proc(x: f32) -> f32 #foreign __llvm_core "llvm.sin.f32";
-sin  :: proc(x: f64) -> f64 #foreign __llvm_core "llvm.sin.f64";
+	proc sin (θ: f32) -> f32          #link_name "llvm.sin.f32";
+	proc sin (θ: f64) -> f64          #link_name "llvm.sin.f64";
 
-cos  :: proc(x: f32) -> f32 #foreign __llvm_core "llvm.cos.f32";
-cos  :: proc(x: f64) -> f64 #foreign __llvm_core "llvm.cos.f64";
+	proc cos (θ: f32) -> f32          #link_name "llvm.cos.f32";
+	proc cos (θ: f64) -> f64          #link_name "llvm.cos.f64";
 
-tan  :: proc(x: f32) -> f32 #inline { return sin(x)/cos(x); }
-tan  :: proc(x: f64) -> f64 #inline { return sin(x)/cos(x); }
+	proc pow (x, power: f32) -> f32   #link_name "llvm.pow.f32";
+	proc pow (x, power: f64) -> f64   #link_name "llvm.pow.f64";
 
-pow  :: proc(x, power: f32) -> f32 #foreign __llvm_core "llvm.pow.f32";
-pow  :: proc(x, power: f64) -> f64 #foreign __llvm_core "llvm.pow.f64";
+	proc fmuladd(a, b, c: f32) -> f32 #link_name "llvm.fmuladd.f32";
+	proc fmuladd(a, b, c: f64) -> f64 #link_name "llvm.fmuladd.f64";
+}
+
+proc tan (θ: f32) -> f32 #inline { return sin(θ)/cos(θ); }
+proc tan (θ: f64) -> f64 #inline { return sin(θ)/cos(θ); }
 
 
-lerp :: proc(a, b, t: f32) -> f32 { return a*(1-t) + b*t; }
-lerp :: proc(a, b, t: f64) -> f64 { return a*(1-t) + b*t; }
-
-sign :: proc(x: f32) -> f32 { if x >= 0 { return +1; } return -1; }
-sign :: proc(x: f64) -> f64 { if x >= 0 { return +1; } return -1; }
-
-bit_reverse :: proc(b: u16) -> u16 #foreign __llvm_core "llvm.bitreverse.i16";
-bit_reverse :: proc(b: u32) -> u32 #foreign __llvm_core "llvm.bitreverse.i32";
-bit_reverse :: proc(b: u64) -> u64 #foreign __llvm_core "llvm.bitreverse.i64";
-
-fmuladd :: proc(a, b, c: f32) -> f32 #foreign __llvm_core "llvm.fmuladd.f32";
-fmuladd :: proc(a, b, c: f64) -> f64 #foreign __llvm_core "llvm.fmuladd.f64";
+proc lerp  (a, b, t: f32) -> (x: f32) { return a*(1-t) + b*t; }
+proc lerp  (a, b, t: f64) -> (x: f64) { return a*(1-t) + b*t; }
+proc unlerp(a, b, x: f32) -> (t: f32) { return (x-a)/(b-a); }
+proc unlerp(a, b, x: f64) -> (t: f64) { return (x-a)/(b-a); }
 
 
-copy_sign :: proc(x, y: f32) -> f32 {
-	ix := transmute(u32)x;
-	iy := transmute(u32)y;
+proc sign(x: f32) -> f32 { return x >= 0 ? +1 : -1; }
+proc sign(x: f64) -> f64 { return x >= 0 ? +1 : -1; }
+
+
+
+proc copy_sign(x, y: f32) -> f32 {
+	var ix = transmute(u32, x);
+	var iy = transmute(u32, y);
 	ix &= 0x7fff_ffff;
 	ix |= iy & 0x8000_0000;
-	return transmute(f32)ix;
+	return transmute(f32, ix);
 }
 
-copy_sign :: proc(x, y: f64) -> f64 {
-	ix := transmute(u64)x;
-	iy := transmute(u64)y;
+proc copy_sign(x, y: f64) -> f64 {
+	var ix = transmute(u64, x);
+	var iy = transmute(u64, y);
 	ix &= 0x7fff_ffff_ffff_ff;
 	ix |= iy & 0x8000_0000_0000_0000;
-	return transmute(f64)ix;
+	return transmute(f64, ix);
 }
 
-round     :: proc(x: f32) -> f32 { return x >= 0 ? floor(x + 0.5) : ceil(x - 0.5); }
-round     :: proc(x: f64) -> f64 { return x >= 0 ? floor(x + 0.5) : ceil(x - 0.5); }
+proc round    (x: f32) -> f32 { return x >= 0 ? floor(x + 0.5) : ceil(x - 0.5); }
+proc round    (x: f64) -> f64 { return x >= 0 ? floor(x + 0.5) : ceil(x - 0.5); }
 
-floor     :: proc(x: f32) -> f32 { return x >= 0 ? cast(f32)cast(i64)x : cast(f32)cast(i64)(x-0.5); } // TODO: Get accurate versions
-floor     :: proc(x: f64) -> f64 { return x >= 0 ? cast(f64)cast(i64)x : cast(f64)cast(i64)(x-0.5); } // TODO: Get accurate versions
+proc floor    (x: f32) -> f32 { return x >= 0 ? f32(i64(x)) : f32(i64(x-0.5)); } // TODO: Get accurate versions
+proc floor    (x: f64) -> f64 { return x >= 0 ? f64(i64(x)) : f64(i64(x-0.5)); } // TODO: Get accurate versions
 
-ceil      :: proc(x: f32) -> f32 { return x <  0 ? cast(f32)cast(i64)x : cast(f32)cast(i64)(x+1); } // TODO: Get accurate versions
-ceil      :: proc(x: f64) -> f64 { return x <  0 ? cast(f64)cast(i64)x : cast(f64)cast(i64)(x+1); } // TODO: Get accurate versions
+proc ceil     (x: f32) -> f32 { return x <  0 ? f32(i64(x)) : f32(i64(x+1)); } // TODO: Get accurate versions
+proc ceil     (x: f64) -> f64 { return x <  0 ? f64(i64(x)) : f64(i64(x+1)); } // TODO: Get accurate versions
 
-remainder :: proc(x, y: f32) -> f32 { return x - round(x/y) * y; }
-remainder :: proc(x, y: f64) -> f64 { return x - round(x/y) * y; }
+proc remainder(x, y: f32) -> f32 { return x - round(x/y) * y; }
+proc remainder(x, y: f64) -> f64 { return x - round(x/y) * y; }
 
-mod :: proc(x, y: f32) -> f32 {
+proc mod(x, y: f32) -> f32 {
+	var result: f32;
 	y = abs(y);
-	result := remainder(abs(x), y);
+	result = remainder(abs(x), y);
 	if sign(result) < 0 {
 		result += y;
 	}
 	return copy_sign(result, x);
 }
-mod :: proc(x, y: f64) -> f64 {
+proc mod(x, y: f64) -> f64 {
+	var result: f64;
 	y = abs(y);
-	result := remainder(abs(x), y);
+	result = remainder(abs(x), y);
 	if sign(result) < 0 {
 		result += y;
 	}
@@ -100,57 +110,57 @@ mod :: proc(x, y: f64) -> f64 {
 }
 
 
-to_radians :: proc(degrees: f32) -> f32 { return degrees * TAU / 360; }
-to_degrees :: proc(radians: f32) -> f32 { return radians * 360 / TAU; }
+proc to_radians(degrees: f32) -> f32 { return degrees * TAU / 360; }
+proc to_degrees(radians: f32) -> f32 { return radians * 360 / TAU; }
 
 
 
-dot :: proc(a, b: Vec2) -> f32 { c := a*b; return c.x + c.y; }
-dot :: proc(a, b: Vec3) -> f32 { c := a*b; return c.x + c.y + c.z; }
-dot :: proc(a, b: Vec4) -> f32 { c := a*b; return c.x + c.y + c.z + c.w; }
+proc dot(a, b: Vec2) -> f32 { var c = a*b; return c.x + c.y; }
+proc dot(a, b: Vec3) -> f32 { var c = a*b; return c.x + c.y + c.z; }
+proc dot(a, b: Vec4) -> f32 { var c = a*b; return c.x + c.y + c.z + c.w; }
 
-cross :: proc(x, y: Vec3) -> Vec3 {
-	a := swizzle(x, 1, 2, 0) * swizzle(y, 2, 0, 1);
-	b := swizzle(x, 2, 0, 1) * swizzle(y, 1, 2, 0);
+proc cross(x, y: Vec3) -> Vec3 {
+	var a = swizzle(x, 1, 2, 0) * swizzle(y, 2, 0, 1);
+	var b = swizzle(x, 2, 0, 1) * swizzle(y, 1, 2, 0);
 	return a - b;
 }
 
 
-mag :: proc(v: Vec2) -> f32 { return sqrt(dot(v, v)); }
-mag :: proc(v: Vec3) -> f32 { return sqrt(dot(v, v)); }
-mag :: proc(v: Vec4) -> f32 { return sqrt(dot(v, v)); }
+proc mag(v: Vec2) -> f32 { return sqrt(dot(v, v)); }
+proc mag(v: Vec3) -> f32 { return sqrt(dot(v, v)); }
+proc mag(v: Vec4) -> f32 { return sqrt(dot(v, v)); }
 
-norm :: proc(v: Vec2) -> Vec2 { return v / Vec2{mag(v)}; }
-norm :: proc(v: Vec3) -> Vec3 { return v / Vec3{mag(v)}; }
-norm :: proc(v: Vec4) -> Vec4 { return v / Vec4{mag(v)}; }
+proc norm(v: Vec2) -> Vec2 { return v / mag(v); }
+proc norm(v: Vec3) -> Vec3 { return v / mag(v); }
+proc norm(v: Vec4) -> Vec4 { return v / mag(v); }
 
-norm0 :: proc(v: Vec2) -> Vec2 {
-	m := mag(v);
+proc norm0(v: Vec2) -> Vec2 {
+	var m = mag(v);
 	if m == 0 {
-		return Vec2{0};
+		return 0;
 	}
-	return v / Vec2{m};
+	return v / m;
 }
 
-norm0 :: proc(v: Vec3) -> Vec3 {
-	m := mag(v);
+proc norm0(v: Vec3) -> Vec3 {
+	var m = mag(v);
 	if m == 0 {
-		return Vec3{0};
+		return 0;
 	}
-	return v / Vec3{m};
+	return v / m;
 }
 
-norm0 :: proc(v: Vec4) -> Vec4 {
-	m := mag(v);
+proc norm0(v: Vec4) -> Vec4 {
+	var m = mag(v);
 	if m == 0 {
-		return Vec4{0};
+		return 0;
 	}
-	return v / Vec4{m};
+	return v / m;
 }
 
 
 
-mat4_identity :: proc() -> Mat4 {
+proc mat4_identity() -> Mat4 {
 	return Mat4{
 		{1, 0, 0, 0},
 		{0, 1, 0, 0},
@@ -159,19 +169,19 @@ mat4_identity :: proc() -> Mat4 {
 	};
 }
 
-mat4_transpose :: proc(m: Mat4) -> Mat4 {
-	for j in 0..4 {
-		for i in 0..4 {
+proc mat4_transpose(m: Mat4) -> Mat4 {
+	for j in 0..<4 {
+		for i in 0..<4 {
 			m[i][j], m[j][i] = m[j][i], m[i][j];
 		}
 	}
 	return m;
 }
 
-mul :: proc(a, b: Mat4) -> Mat4 {
-	c: Mat4;
-	for j in 0..4 {
-		for i in 0..4 {
+proc mul(a, b: Mat4) -> Mat4 {
+	var c: Mat4;
+	for j in 0..<4 {
+		for i in 0..<4 {
 			c[j][i] = a[0][i]*b[j][0] +
 			          a[1][i]*b[j][1] +
 			          a[2][i]*b[j][2] +
@@ -181,7 +191,7 @@ mul :: proc(a, b: Mat4) -> Mat4 {
 	return c;
 }
 
-mul :: proc(m: Mat4, v: Vec4) -> Vec4 {
+proc mul(m: Mat4, v: Vec4) -> Vec4 {
 	return Vec4{
 		m[0][0]*v.x + m[1][0]*v.y + m[2][0]*v.z + m[3][0]*v.w,
 		m[0][1]*v.x + m[1][1]*v.y + m[2][1]*v.z + m[3][1]*v.w,
@@ -190,28 +200,30 @@ mul :: proc(m: Mat4, v: Vec4) -> Vec4 {
 	};
 }
 
-inverse :: proc(m: Mat4) -> Mat4 {
-	o: Mat4;
+proc inverse(m: Mat4) -> Mat4 {
+	var o: Mat4;
 
-	sf00 := m[2][2] * m[3][3] - m[3][2] * m[2][3];
-	sf01 := m[2][1] * m[3][3] - m[3][1] * m[2][3];
-	sf02 := m[2][1] * m[3][2] - m[3][1] * m[2][2];
-	sf03 := m[2][0] * m[3][3] - m[3][0] * m[2][3];
-	sf04 := m[2][0] * m[3][2] - m[3][0] * m[2][2];
-	sf05 := m[2][0] * m[3][1] - m[3][0] * m[2][1];
-	sf06 := m[1][2] * m[3][3] - m[3][2] * m[1][3];
-	sf07 := m[1][1] * m[3][3] - m[3][1] * m[1][3];
-	sf08 := m[1][1] * m[3][2] - m[3][1] * m[1][2];
-	sf09 := m[1][0] * m[3][3] - m[3][0] * m[1][3];
-	sf10 := m[1][0] * m[3][2] - m[3][0] * m[1][2];
-	sf11 := m[1][1] * m[3][3] - m[3][1] * m[1][3];
-	sf12 := m[1][0] * m[3][1] - m[3][0] * m[1][1];
-	sf13 := m[1][2] * m[2][3] - m[2][2] * m[1][3];
-	sf14 := m[1][1] * m[2][3] - m[2][1] * m[1][3];
-	sf15 := m[1][1] * m[2][2] - m[2][1] * m[1][2];
-	sf16 := m[1][0] * m[2][3] - m[2][0] * m[1][3];
-	sf17 := m[1][0] * m[2][2] - m[2][0] * m[1][2];
-	sf18 := m[1][0] * m[2][1] - m[2][0] * m[1][1];
+	var (
+		sf00 = m[2][2] * m[3][3] - m[3][2] * m[2][3];
+		sf01 = m[2][1] * m[3][3] - m[3][1] * m[2][3];
+		sf02 = m[2][1] * m[3][2] - m[3][1] * m[2][2];
+		sf03 = m[2][0] * m[3][3] - m[3][0] * m[2][3];
+		sf04 = m[2][0] * m[3][2] - m[3][0] * m[2][2];
+		sf05 = m[2][0] * m[3][1] - m[3][0] * m[2][1];
+		sf06 = m[1][2] * m[3][3] - m[3][2] * m[1][3];
+		sf07 = m[1][1] * m[3][3] - m[3][1] * m[1][3];
+		sf08 = m[1][1] * m[3][2] - m[3][1] * m[1][2];
+		sf09 = m[1][0] * m[3][3] - m[3][0] * m[1][3];
+		sf10 = m[1][0] * m[3][2] - m[3][0] * m[1][2];
+		sf11 = m[1][1] * m[3][3] - m[3][1] * m[1][3];
+		sf12 = m[1][0] * m[3][1] - m[3][0] * m[1][1];
+		sf13 = m[1][2] * m[2][3] - m[2][2] * m[1][3];
+		sf14 = m[1][1] * m[2][3] - m[2][1] * m[1][3];
+		sf15 = m[1][1] * m[2][2] - m[2][1] * m[1][2];
+		sf16 = m[1][0] * m[2][3] - m[2][0] * m[1][3];
+		sf17 = m[1][0] * m[2][2] - m[2][0] * m[1][2];
+		sf18 = m[1][0] * m[2][1] - m[2][0] * m[1][1];
+	)
 
 	o[0][0] = +(m[1][1] * sf00 - m[1][2] * sf01 + m[1][3] * sf02);
 	o[0][1] = -(m[1][0] * sf00 - m[1][2] * sf03 + m[1][3] * sf04);
@@ -233,7 +245,7 @@ inverse :: proc(m: Mat4) -> Mat4 {
 	o[3][2] = -(m[0][0] * sf14 - m[0][1] * sf16 + m[0][3] * sf18);
 	o[3][3] = +(m[0][0] * sf15 - m[0][1] * sf17 + m[0][2] * sf18);
 
-	ood := 1.0 / (m[0][0] * o[0][0] +
+	var ood = 1.0 / (m[0][0] * o[0][0] +
 	              m[0][1] * o[0][1] +
 	              m[0][2] * o[0][2] +
 	              m[0][3] * o[0][3]);
@@ -259,8 +271,8 @@ inverse :: proc(m: Mat4) -> Mat4 {
 }
 
 
-mat4_translate :: proc(v: Vec3) -> Mat4 {
-	m := mat4_identity();
+proc mat4_translate(v: Vec3) -> Mat4 {
+	var m = mat4_identity();
 	m[3][0] = v.x;
 	m[3][1] = v.y;
 	m[3][2] = v.z;
@@ -268,14 +280,16 @@ mat4_translate :: proc(v: Vec3) -> Mat4 {
 	return m;
 }
 
-mat4_rotate :: proc(v: Vec3, angle_radians: f32) -> Mat4 {
-	c := cos(angle_radians);
-	s := sin(angle_radians);
+proc mat4_rotate(v: Vec3, angle_radians: f32) -> Mat4 {
+	var (
+		c = cos(angle_radians);
+		s = sin(angle_radians);
 
-	a := norm(v);
-	t := a * Vec3{1-c};
+		a = norm(v);
+		t = a * (1-c);
 
-	rot := mat4_identity();
+		rot = mat4_identity();
+	)
 
 	rot[0][0] = c + t.x*a.x;
 	rot[0][1] = 0 + t.x*a.y + s*a.z;
@@ -295,14 +309,14 @@ mat4_rotate :: proc(v: Vec3, angle_radians: f32) -> Mat4 {
 	return rot;
 }
 
-scale :: proc(m: Mat4, v: Vec3) -> Mat4 {
+proc scale(m: Mat4, v: Vec3) -> Mat4 {
 	m[0][0] *= v.x;
 	m[1][1] *= v.y;
 	m[2][2] *= v.z;
 	return m;
 }
 
-scale :: proc(m: Mat4, s: f32) -> Mat4 {
+proc scale(m: Mat4, s: f32) -> Mat4 {
 	m[0][0] *= s;
 	m[1][1] *= s;
 	m[2][2] *= s;
@@ -310,23 +324,26 @@ scale :: proc(m: Mat4, s: f32) -> Mat4 {
 }
 
 
-look_at :: proc(eye, centre, up: Vec3) -> Mat4 {
-	f := norm(centre - eye);
-	s := norm(cross(f, up));
-	u := cross(s, f);
+proc look_at(eye, centre, up: Vec3) -> Mat4 {
+	var (
+		f = norm(centre - eye);
+		s = norm(cross(f, up));
+		u = cross(s, f);
+	)
 
-	m: Mat4;
-
-	m[0] = Vec4{+s.x, +s.y, +s.z, 0};
-	m[1] = Vec4{+u.x, +u.y, +u.z, 0};
-	m[2] = Vec4{-f.x, -f.y, -f.z, 0};
-	m[3] = Vec4{dot(s, eye), dot(u, eye), dot(f, eye), 1};
-
-	return m;
+	return Mat4{
+		{+s.x, +u.x, -f.x, 0},
+		{+s.y, +u.y, -f.y, 0},
+		{+s.z, +u.z, -f.z, 0},
+		{-dot(s, eye), -dot(u, eye), dot(f, eye), 1},
+	};
 }
-perspective :: proc(fovy, aspect, near, far: f32) -> Mat4 {
-	m: Mat4;
-	tan_half_fovy := tan(0.5 * fovy);
+
+proc perspective(fovy, aspect, near, far: f32) -> Mat4 {
+	var (
+		m: Mat4;
+		tan_half_fovy = tan(0.5 * fovy);
+	)
 	m[0][0] = 1.0 / (aspect*tan_half_fovy);
 	m[1][1] = 1.0 / (tan_half_fovy);
 	m[2][2] = -(far + near) / (far - near);
@@ -336,8 +353,8 @@ perspective :: proc(fovy, aspect, near, far: f32) -> Mat4 {
 }
 
 
-ortho3d :: proc(left, right, bottom, top, near, far: f32) -> Mat4 {
-	m := mat4_identity();
+proc ortho3d(left, right, bottom, top, near, far: f32) -> Mat4 {
+	var m = mat4_identity();
 	m[0][0] = +2.0 / (right - left);
 	m[1][1] = +2.0 / (top - bottom);
 	m[2][2] = -2.0 / (far - near);
@@ -350,32 +367,30 @@ ortho3d :: proc(left, right, bottom, top, near, far: f32) -> Mat4 {
 
 
 
+const (
+	F32_DIG        = 6;
+	F32_EPSILON    = 1.192092896e-07;
+	F32_GUARD      = 0;
+	F32_MANT_DIG   = 24;
+	F32_MAX        = 3.402823466e+38;
+	F32_MAX_10_EXP = 38;
+	F32_MAX_EXP    = 128;
+	F32_MIN        = 1.175494351e-38;
+	F32_MIN_10_EXP = -37;
+	F32_MIN_EXP    = -125;
+	F32_NORMALIZE  = 0;
+	F32_RADIX      = 2;
+	F32_ROUNDS     = 1;
 
-F32_DIG        :: 6;
-F32_EPSILON    :: 1.192092896e-07;
-F32_GUARD      :: 0;
-F32_MANT_DIG   :: 24;
-F32_MAX        :: 3.402823466e+38;
-F32_MAX_10_EXP :: 38;
-F32_MAX_EXP    :: 128;
-F32_MIN        :: 1.175494351e-38;
-F32_MIN_10_EXP :: -37;
-F32_MIN_EXP    :: -125;
-F32_NORMALIZE  :: 0;
-F32_RADIX      :: 2;
-F32_ROUNDS     :: 1;
-
-F64_DIG        :: 15;                       // # of decimal digits of precision
-F64_EPSILON    :: 2.2204460492503131e-016;  // smallest such that 1.0+F64_EPSILON != 1.0
-F64_MANT_DIG   :: 53;                       // # of bits in mantissa
-F64_MAX        :: 1.7976931348623158e+308;  // max value
-F64_MAX_10_EXP :: 308;                      // max decimal exponent
-F64_MAX_EXP    :: 1024;                     // max binary exponent
-F64_MIN        :: 2.2250738585072014e-308;  // min positive value
-F64_MIN_10_EXP :: -307;                     // min decimal exponent
-F64_MIN_EXP    :: -1021;                    // min binary exponent
-F64_RADIX      :: 2;                        // exponent radix
-F64_ROUNDS     :: 1;                        // addition rounding: near
-
-
-
+	F64_DIG        = 15;                       // # of decimal digits of precision
+	F64_EPSILON    = 2.2204460492503131e-016;  // smallest such that 1.0+F64_EPSILON != 1.0
+	F64_MANT_DIG   = 53;                       // # of bits in mantissa
+	F64_MAX        = 1.7976931348623158e+308;  // max value
+	F64_MAX_10_EXP = 308;                      // max decimal exponent
+	F64_MAX_EXP    = 1024;                     // max binary exponent
+	F64_MIN        = 2.2250738585072014e-308;  // min positive value
+	F64_MIN_10_EXP = -307;                     // min decimal exponent
+	F64_MIN_EXP    = -1021;                    // min binary exponent
+	F64_RADIX      = 2;                        // exponent radix
+	F64_ROUNDS     = 1;                        // addition rounding: near
+)

core/mem.odin

@@ -1,76 +1,78 @@
-#import "fmt.odin";
-#import "os.odin";
+import (
+	"fmt.odin";
+	"os.odin";
+)
+foreign __llvm_core {
+	proc swap(b: u16) -> u16 #link_name "llvm.bswap.i16";
+	proc swap(b: u32) -> u32 #link_name "llvm.bswap.i32";
+	proc swap(b: u64) -> u64 #link_name "llvm.bswap.i64";
+}
 
-swap :: proc(b: u16) -> u16 #foreign __llvm_core "llvm.bswap.i16";
-swap :: proc(b: u32) -> u32 #foreign __llvm_core "llvm.bswap.i32";
-swap :: proc(b: u64) -> u64 #foreign __llvm_core "llvm.bswap.i64";
-
-
-set :: proc(data: rawptr, value: i32, len: int) -> rawptr {
+proc set(data: rawptr, value: i32, len: int) -> rawptr {
 	return __mem_set(data, value, len);
 }
-zero :: proc(data: rawptr, len: int) -> rawptr {
+proc zero(data: rawptr, len: int) -> rawptr {
 	return __mem_zero(data, len);
 }
-copy :: proc(dst, src: rawptr, len: int) -> rawptr {
+proc copy(dst, src: rawptr, len: int) -> rawptr {
 	return __mem_copy(dst, src, len);
 }
-copy_non_overlapping :: proc(dst, src: rawptr, len: int) -> rawptr {
+proc copy_non_overlapping(dst, src: rawptr, len: int) -> rawptr {
 	return __mem_copy_non_overlapping(dst, src, len);
 }
-compare :: proc(a, b: []byte) -> int {
-	return __mem_compare(a.data, b.data, min(a.count, b.count));
+proc compare(a, b: []u8) -> int {
+	return __mem_compare(&a[0], &b[0], min(len(a), len(b)));
 }
 
 
 
-kilobytes :: proc(x: int) -> int #inline { return          (x) * 1024; }
-megabytes :: proc(x: int) -> int #inline { return kilobytes(x) * 1024; }
-gigabytes :: proc(x: int) -> int #inline { return megabytes(x) * 1024; }
-terabytes :: proc(x: int) -> int #inline { return gigabytes(x) * 1024; }
+proc kilobytes(x: int) -> int #inline { return          (x) * 1024; }
+proc megabytes(x: int) -> int #inline { return kilobytes(x) * 1024; }
+proc gigabytes(x: int) -> int #inline { return megabytes(x) * 1024; }
+proc terabytes(x: int) -> int #inline { return gigabytes(x) * 1024; }
 
-is_power_of_two :: proc(x: int) -> bool {
+proc is_power_of_two(x: int) -> bool {
 	if x <= 0 {
 		return false;
 	}
 	return (x & (x-1)) == 0;
 }
 
-align_forward :: proc(ptr: rawptr, align: int) -> rawptr {
+proc align_forward(ptr: rawptr, align: int) -> rawptr {
 	assert(is_power_of_two(align));
 
-	a := cast(uint)align;
-	p := cast(uint)ptr;
-	modulo := p & (a-1);
+	var a = uint(align);
+	var p = uint(ptr);
+	var modulo = p & (a-1);
 	if modulo != 0 {
 		p += a - modulo;
 	}
-	return cast(rawptr)p;
+	return rawptr(p);
 }
 
 
 
-Allocation_Header :: struct {
+type AllocationHeader struct {
 	size: int,
 }
 
-allocation_header_fill :: proc(header: ^Allocation_Header, data: rawptr, size: int) {
+proc allocation_header_fill(header: ^AllocationHeader, data: rawptr, size: int) {
 	header.size = size;
-	ptr := cast(^int)(header+1);
+	var ptr = ^int(header+1);
 
-	for i := 0; cast(rawptr)ptr < data; i++ {
+	for var i = 0; rawptr(ptr) < data; i++ {
 		(ptr+i)^ = -1;
 	}
 }
-allocation_header :: proc(data: rawptr) -> ^Allocation_Header {
+proc allocation_header(data: rawptr) -> ^AllocationHeader {
 	if data == nil {
 		return nil;
 	}
-	p := cast(^int)data;
+	var p = ^int(data);
 	for (p-1)^ == -1 {
 		p = (p-1);
 	}
-	return cast(^Allocation_Header)p-1;
+	return ^AllocationHeader(p-1);
 }
 
 
@@ -78,35 +80,36 @@ allocation_header :: proc(data: rawptr) -> ^Allocation_Header {
 
 
 // Custom allocators
-Arena :: struct {
-	backing:    Allocator,
-	offset:     int,
-	memory:     []byte,
-	temp_count: int,
-}
+type (
+	Arena struct {
+		backing:    Allocator,
+		offset:     int,
+		memory:     []u8,
+		temp_count: int,
+	}
 
-Arena_Temp_Memory :: struct {
-	arena:          ^Arena,
-	original_count: int,
-}
+	ArenaTempMemory struct {
+		arena:          ^Arena,
+		original_count: int,
+	}
+)
 
 
 
 
-
-init_arena_from_memory :: proc(using a: ^Arena, data: []byte) {
+proc init_arena_from_memory(using a: ^Arena, data: []u8) {
 	backing    = Allocator{};
-	memory     = data[..0];
+	memory     = data[0..<0];
 	temp_count = 0;
 }
 
-init_arena_from_context :: proc(using a: ^Arena, size: int) {
+proc init_arena_from_context(using a: ^Arena, size: int) {
 	backing = context.allocator;
-	memory = new_slice(byte, size);
+	memory = make([]u8, size);
 	temp_count = 0;
 }
 
-free_arena :: proc(using a: ^Arena) {
+proc free_arena(using a: ^Arena) {
 	if backing.procedure != nil {
 		push_allocator backing {
 			free(memory);
@@ -116,60 +119,60 @@ free_arena :: proc(using a: ^Arena) {
 	}
 }
 
-arena_allocator :: proc(arena: ^Arena) -> Allocator {
+proc arena_allocator(arena: ^Arena) -> Allocator {
 	return Allocator{
 		procedure = arena_allocator_proc,
 		data = arena,
 	};
 }
 
-arena_allocator_proc :: proc(allocator_data: rawptr, mode: Allocator_Mode,
+proc arena_allocator_proc(allocator_data: rawptr, mode: AllocatorMode,
                           size, alignment: int,
                           old_memory: rawptr, old_size: int, flags: u64) -> rawptr {
-	using Allocator_Mode;
-	arena := cast(^Arena)allocator_data;
+	using AllocatorMode;
+	var arena = ^Arena(allocator_data);
 
 	match mode {
-	case ALLOC:
-		total_size := size + alignment;
+	case Alloc:
+		var total_size = size + alignment;
 
-		if arena.offset + total_size > arena.memory.count {
+		if arena.offset + total_size > len(arena.memory) {
 			fmt.fprintln(os.stderr, "Arena out of memory");
 			return nil;
 		}
 
-		#no_bounds_check end := ^arena.memory[arena.offset];
+		#no_bounds_check var end = &arena.memory[arena.offset];
 
-		ptr := align_forward(end, alignment);
+		var ptr = align_forward(end, alignment);
 		arena.offset += total_size;
 		return zero(ptr, size);
 
-	case FREE:
+	case Free:
 		// NOTE(bill): Free all at once
-		// Use Arena_Temp_Memory if you want to free a block
+		// Use ArenaTempMemory if you want to free a block
 
-	case FREE_ALL:
+	case FreeAll:
 		arena.offset = 0;
 
-	case RESIZE:
+	case Resize:
 		return default_resize_align(old_memory, old_size, size, alignment);
 	}
 
 	return nil;
 }
 
-begin_arena_temp_memory :: proc(a: ^Arena) -> Arena_Temp_Memory {
-	tmp: Arena_Temp_Memory;
+proc begin_arena_temp_memory(a: ^Arena) -> ArenaTempMemory {
+	var tmp: ArenaTempMemory;
 	tmp.arena = a;
-	tmp.original_count = a.memory.count;
+	tmp.original_count = len(a.memory);
 	a.temp_count++;
 	return tmp;
 }
 
-end_arena_temp_memory :: proc(using tmp: Arena_Temp_Memory) {
-	assert(arena.memory.count >= original_count);
+proc end_arena_temp_memory(using tmp: ArenaTempMemory) {
+	assert(len(arena.memory) >= original_count);
 	assert(arena.temp_count > 0);
-	arena.memory.count = original_count;
+	arena.memory = arena.memory[0..<original_count];
 	arena.temp_count--;
 }
 
@@ -179,8 +182,8 @@ end_arena_temp_memory :: proc(using tmp: Arena_Temp_Memory) {
 
 
 
-align_of_type_info :: proc(type_info: ^Type_Info) -> int {
-	prev_pow2 :: proc(n: i64) -> i64 {
+proc align_of_type_info(type_info: ^TypeInfo) -> int {
+	proc prev_pow2(n: i64) -> i64 {
 		if n <= 0 {
 			return 0;
 		}
@@ -193,9 +196,9 @@ align_of_type_info :: proc(type_info: ^Type_Info) -> int {
 		return n - (n >> 1);
 	}
 
-	WORD_SIZE :: size_of(int);
-	MAX_ALIGN :: size_of([vector 64]f64); // TODO(bill): Should these constants be builtin constants?
-	using Type_Info;
+	const WORD_SIZE = size_of(int);
+	const MAX_ALIGN = size_of([vector 64]f64); // TODO(bill): Should these constants be builtin constants?
+	using TypeInfo;
 	match info in type_info {
 	case Named:
 		return align_of_type_info(info.base);
@@ -215,14 +218,14 @@ align_of_type_info :: proc(type_info: ^Type_Info) -> int {
 		return WORD_SIZE;
 	case Array:
 		return align_of_type_info(info.elem);
-	case Dynamic_Array:
+	case DynamicArray:
 		return WORD_SIZE;
 	case Slice:
 		return WORD_SIZE;
 	case Vector:
-		size := size_of_type_info(info.elem);
-		count := cast(int)max(prev_pow2(cast(i64)info.count), 1);
-		total := size * count;
+		var size = size_of_type_info(info.elem);
+		var count = int(max(prev_pow2(i64(info.count)), 1));
+		var total = size * count;
 		return clamp(total, 1, MAX_ALIGN);
 	case Tuple:
 		return info.align;
@@ -230,7 +233,7 @@ align_of_type_info :: proc(type_info: ^Type_Info) -> int {
 		return info.align;
 	case Union:
 		return info.align;
-	case Raw_Union:
+	case RawUnion:
 		return info.align;
 	case Enum:
 		return align_of_type_info(info.base);
@@ -241,14 +244,14 @@ align_of_type_info :: proc(type_info: ^Type_Info) -> int {
 	return 0;
 }
 
-align_formula :: proc(size, align: int) -> int {
-	result := size + align-1;
+proc align_formula(size, align: int) -> int {
+	var result = size + align-1;
 	return result - result%align;
 }
 
-size_of_type_info :: proc(type_info: ^Type_Info) -> int {
-	WORD_SIZE :: size_of(int);
-	using Type_Info;
+proc size_of_type_info(type_info: ^TypeInfo) -> int {
+	const WORD_SIZE = size_of(int);
+	using TypeInfo;
 	match info in type_info {
 	case Named:
 		return size_of_type_info(info.base);
@@ -267,32 +270,32 @@ size_of_type_info :: proc(type_info: ^Type_Info) -> int {
 	case Procedure:
 		return WORD_SIZE;
 	case Array:
-		count := info.count;
+		var count = info.count;
 		if count == 0 {
 			return 0;
 		}
-		size      := size_of_type_info(info.elem);
-		align     := align_of_type_info(info.elem);
-		alignment := align_formula(size, align);
+		var size      = size_of_type_info(info.elem);
+		var align     = align_of_type_info(info.elem);
+		var alignment = align_formula(size, align);
 		return alignment*(count-1) + size;
-	case Dynamic_Array:
+	case DynamicArray:
 		return size_of(rawptr) + 2*size_of(int) + size_of(Allocator);
 	case Slice:
 		return 2*WORD_SIZE;
 	case Vector:
-		count := info.count;
+		var count = info.count;
 		if count == 0 {
 			return 0;
 		}
-		size      := size_of_type_info(info.elem);
-		align     := align_of_type_info(info.elem);
-		alignment := align_formula(size, align);
+		var size      = size_of_type_info(info.elem);
+		var align     = align_of_type_info(info.elem);
+		var alignment = align_formula(size, align);
 		return alignment*(count-1) + size;
 	case Struct:
 		return info.size;
 	case Union:
 		return info.size;
-	case Raw_Union:
+	case RawUnion:
 		return info.size;
 	case Enum:
 		return size_of_type_info(info.base);

core/opengl.odin

@@ -1,156 +1,176 @@
-#foreign_system_library lib "opengl32.lib" when ODIN_OS == "windows";
-#import win32 "sys/windows.odin" when ODIN_OS == "windows";
-#import "sys/wgl.odin" when ODIN_OS == "windows";
-#load "opengl_constants.odin";
+foreign_system_library (
+	lib "opengl32.lib" when ODIN_OS == "windows";
+	lib "gl" when ODIN_OS == "linux";
+)
+import (
+	win32 "sys/windows.odin" when ODIN_OS == "windows";
+	"sys/wgl.odin" when ODIN_OS == "windows";
+)
+import_load "opengl_constants.odin";
 
-Clear         :: proc(mask: u32)                                #foreign lib "glClear";
-ClearColor    :: proc(r, g, b, a: f32)                          #foreign lib "glClearColor";
-Begin         :: proc(mode: i32)                                #foreign lib "glBegin";
-End           :: proc()                                         #foreign lib "glEnd";
-Finish        :: proc()                                         #foreign lib "glFinish";
-BlendFunc     :: proc(sfactor, dfactor: i32)                    #foreign lib "glBlendFunc";
-Enable        :: proc(cap: i32)                                 #foreign lib "glEnable";
-Disable       :: proc(cap: i32)                                 #foreign lib "glDisable";
-GenTextures   :: proc(count: i32, result: ^u32)                 #foreign lib "glGenTextures";
-DeleteTextures:: proc(count: i32, result: ^u32)                 #foreign lib "glDeleteTextures";
-TexParameteri :: proc(target, pname, param: i32)                #foreign lib "glTexParameteri";
-TexParameterf :: proc(target: i32, pname: i32, param: f32)      #foreign lib "glTexParameterf";
-BindTexture   :: proc(target: i32, texture: u32)                #foreign lib "glBindTexture";
-LoadIdentity  :: proc()                                         #foreign lib "glLoadIdentity";
-Viewport      :: proc(x, y, width, height: i32)                 #foreign lib "glViewport";
-Ortho         :: proc(left, right, bottom, top, near, far: f64) #foreign lib "glOrtho";
-Color3f       :: proc(r, g, b: f32)                             #foreign lib "glColor3f";
-Vertex3f      :: proc(x, y, z: f32)                             #foreign lib "glVertex3f";
-GetError      :: proc() -> i32                                  #foreign lib "glGetError";
-GetString     :: proc(name: i32) -> ^byte                       #foreign lib "glGetString";
-GetIntegerv   :: proc(name: i32, v: ^i32)                       #foreign lib "glGetIntegerv";
-TexCoord2f    :: proc(x, y: f32)                                #foreign lib "glTexCoord2f";
-TexImage2D    :: proc(target, level, internal_format,
-                      width, height, border,
-                      format, type: i32, pixels: rawptr)        #foreign lib "glTexImage2D";
+foreign lib {
+	proc Clear         (mask: u32)                                #link_name "glClear";
+	proc ClearColor    (r, g, b, a: f32)                          #link_name "glClearColor";
+	proc Begin         (mode: i32)                                #link_name "glBegin";
+	proc End           ()                                         #link_name "glEnd";
+	proc Finish        ()                                         #link_name "glFinish";
+	proc BlendFunc     (sfactor, dfactor: i32)                    #link_name "glBlendFunc";
+	proc Enable        (cap: i32)                                 #link_name "glEnable";
+	proc Disable       (cap: i32)                                 #link_name "glDisable";
+	proc GenTextures   (count: i32, result: ^u32)                 #link_name "glGenTextures";
+	proc DeleteTextures(count: i32, result: ^u32)                 #link_name "glDeleteTextures";
+	proc TexParameteri (target, pname, param: i32)                #link_name "glTexParameteri";
+	proc TexParameterf (target: i32, pname: i32, param: f32)      #link_name "glTexParameterf";
+	proc BindTexture   (target: i32, texture: u32)                #link_name "glBindTexture";
+	proc LoadIdentity  ()                                         #link_name "glLoadIdentity";
+	proc Viewport      (x, y, width, height: i32)                 #link_name "glViewport";
+	proc Ortho         (left, right, bottom, top, near, far: f64) #link_name "glOrtho";
+	proc Color3f       (r, g, b: f32)                             #link_name "glColor3f";
+	proc Vertex3f      (x, y, z: f32)                             #link_name "glVertex3f";
+	proc GetError      () -> i32                                  #link_name "glGetError";
+	proc GetString     (name: i32) -> ^u8                         #link_name "glGetString";
+	proc GetIntegerv   (name: i32, v: ^i32)                       #link_name "glGetIntegerv";
+	proc TexCoord2f    (x, y: f32)                                #link_name "glTexCoord2f";
+	proc TexImage2D    (target, level, internal_format,
+	                    width, height, border,
+	                    format, type_: i32, pixels: rawptr)       #link_name "glTexImage2D";
+}
 
 
-string_data :: proc(s: string) -> ^u8 #inline { return ^s[0]; }
+proc _string_data(s: string) -> ^u8 #inline { return &s[0]; }
 
-_libgl := win32.LoadLibraryA(string_data("opengl32.dll\x00"));
+var _libgl = win32.load_library_a(_string_data("opengl32.dll\x00"));
 
-GetProcAddress :: proc(name: string) -> proc() #cc_c {
-	assert(name[name.count-1] == 0);
-	res := wgl.GetProcAddress(name.data);
-	if res == nil {
-		res = win32.GetProcAddress(_libgl, name.data);
+proc get_proc_address(name: string) -> rawptr {
+	if name[len(name)-1] == 0 {
+		name = name[0..<len(name)-1];
 	}
-	return res;
+	// NOTE(bill): null terminated
+	assert((&name[0] + len(name))^ == 0);
+	var res = wgl.get_proc_address(&name[0]);
+	if res == nil {
+		res = win32.get_proc_address(_libgl, &name[0]);
+	}
+	return rawptr(res);
 }
 
-GenBuffers:               proc(count: i32, buffers: ^u32) #cc_c;
-GenVertexArrays:          proc(count: i32, buffers: ^u32) #cc_c;
-GenSamplers:              proc(count: i32, buffers: ^u32) #cc_c;
-BindBuffer:               proc(target: i32, buffer: u32) #cc_c;
-BindVertexArray:          proc(buffer: u32) #cc_c;
-BindSampler:              proc(position: i32, sampler: u32) #cc_c;
-BufferData:               proc(target: i32, size: int, data: rawptr, usage: i32) #cc_c;
-BufferSubData:            proc(target: i32, offset, size: int, data: rawptr) #cc_c;
+var (
+	GenBuffers:               proc(count: i32, buffers: ^u32) #cc_c;
+	GenVertexArrays:          proc(count: i32, buffers: ^u32) #cc_c;
+	GenSamplers:              proc(count: i32, buffers: ^u32) #cc_c;
+	DeleteBuffers:            proc(count: i32, buffers: ^u32) #cc_c;
+	BindBuffer:               proc(target: i32, buffer: u32) #cc_c;
+	BindVertexArray:          proc(buffer: u32) #cc_c;
+	DeleteVertexArrays:       proc(count: i32, arrays: ^u32) #cc_c;
+	BindSampler:              proc(position: i32, sampler: u32) #cc_c;
+	BufferData:               proc(target: i32, size: int, data: rawptr, usage: i32) #cc_c;
+	BufferSubData:            proc(target: i32, offset, size: int, data: rawptr) #cc_c;
 
-DrawArrays:               proc(mode, first: i32, count: u32) #cc_c;
-DrawElements:             proc(mode: i32, count: u32, type_: i32, indices: rawptr) #cc_c;
+	DrawArrays:               proc(mode, first: i32, count: u32) #cc_c;
+	DrawElements:             proc(mode: i32, count: u32, type_: i32, indices: rawptr) #cc_c;
 
-MapBuffer:                proc(target, access: i32) -> rawptr #cc_c;
-UnmapBuffer:              proc(target: i32) #cc_c;
+	MapBuffer:                proc(target, access: i32) -> rawptr #cc_c;
+	UnmapBuffer:              proc(target: i32) #cc_c;
 
-VertexAttribPointer:      proc(index: u32, size, type_: i32, normalized: i32, stride: u32, pointer: rawptr) #cc_c;
-EnableVertexAttribArray:  proc(index: u32) #cc_c;
+	VertexAttribPointer:      proc(index: u32, size, type_: i32, normalized: i32, stride: u32, pointer: rawptr) #cc_c;
+	EnableVertexAttribArray:  proc(index: u32) #cc_c;
 
-CreateShader:             proc(shader_type: i32) -> u32 #cc_c;
-ShaderSource:             proc(shader: u32, count: u32, str: ^^byte, length: ^i32) #cc_c;
-CompileShader:            proc(shader: u32) #cc_c;
-CreateProgram:            proc() -> u32 #cc_c;
-AttachShader:             proc(program, shader: u32) #cc_c;
-DetachShader:             proc(program, shader: u32) #cc_c;
-DeleteShader:             proc(shader:  u32) #cc_c;
-LinkProgram:              proc(program: u32) #cc_c;
-UseProgram:               proc(program: u32) #cc_c;
-DeleteProgram:            proc(program: u32) #cc_c;
+	CreateShader:             proc(shader_type: i32) -> u32 #cc_c;
+	ShaderSource:             proc(shader: u32, count: u32, str: ^^u8, length: ^i32) #cc_c;
+	CompileShader:            proc(shader: u32) #cc_c;
+	CreateProgram:            proc() -> u32 #cc_c;
+	AttachShader:             proc(program, shader: u32) #cc_c;
+	DetachShader:             proc(program, shader: u32) #cc_c;
+	DeleteShader:             proc(shader:  u32) #cc_c;
+	LinkProgram:              proc(program: u32) #cc_c;
+	UseProgram:               proc(program: u32) #cc_c;
+	DeleteProgram:            proc(program: u32) #cc_c;
 
 
-GetShaderiv:              proc(shader:  u32, pname: i32, params: ^i32) #cc_c;
-GetProgramiv:             proc(program: u32, pname: i32, params: ^i32) #cc_c;
-GetShaderInfoLog:         proc(shader:  u32, max_length: u32, length: ^u32, info_long: ^byte) #cc_c;
-GetProgramInfoLog:        proc(program: u32, max_length: u32, length: ^u32, info_long: ^byte) #cc_c;
+	GetShaderiv:              proc(shader:  u32, pname: i32, params: ^i32) #cc_c;
+	GetProgramiv:             proc(program: u32, pname: i32, params: ^i32) #cc_c;
+	GetShaderInfoLog:         proc(shader:  u32, max_length: u32, length: ^u32, info_long: ^u8) #cc_c;
+	GetProgramInfoLog:        proc(program: u32, max_length: u32, length: ^u32, info_long: ^u8) #cc_c;
 
-ActiveTexture:            proc(texture: i32) #cc_c;
-GenerateMipmap:           proc(target:  i32) #cc_c;
+	ActiveTexture:            proc(texture: i32) #cc_c;
+	GenerateMipmap:           proc(target:  i32) #cc_c;
 
-SamplerParameteri:        proc(sampler: u32, pname: i32, param: i32) #cc_c;
-SamplerParameterf:        proc(sampler: u32, pname: i32, param: f32) #cc_c;
-SamplerParameteriv:       proc(sampler: u32, pname: i32, params: ^i32) #cc_c;
-SamplerParameterfv:       proc(sampler: u32, pname: i32, params: ^f32) #cc_c;
-SamplerParameterIiv:      proc(sampler: u32, pname: i32, params: ^i32) #cc_c;
-SamplerParameterIuiv:     proc(sampler: u32, pname: i32, params: ^u32) #cc_c;
+	SamplerParameteri:        proc(sampler: u32, pname: i32, param: i32) #cc_c;
+	SamplerParameterf:        proc(sampler: u32, pname: i32, param: f32) #cc_c;
+	SamplerParameteriv:       proc(sampler: u32, pname: i32, params: ^i32) #cc_c;
+	SamplerParameterfv:       proc(sampler: u32, pname: i32, params: ^f32) #cc_c;
+	SamplerParameterIiv:      proc(sampler: u32, pname: i32, params: ^i32) #cc_c;
+	SamplerParameterIuiv:     proc(sampler: u32, pname: i32, params: ^u32) #cc_c;
 
 
-Uniform1i:                proc(loc: i32, v0: i32) #cc_c;
-Uniform2i:                proc(loc: i32, v0, v1: i32) #cc_c;
-Uniform3i:                proc(loc: i32, v0, v1, v2: i32) #cc_c;
-Uniform4i:                proc(loc: i32, v0, v1, v2, v3: i32) #cc_c;
-Uniform1f:                proc(loc: i32, v0: f32) #cc_c;
-Uniform2f:                proc(loc: i32, v0, v1: f32) #cc_c;
-Uniform3f:                proc(loc: i32, v0, v1, v2: f32) #cc_c;
-Uniform4f:                proc(loc: i32, v0, v1, v2, v3: f32) #cc_c;
-UniformMatrix4fv:         proc(loc: i32, count: u32, transpose: i32, value: ^f32) #cc_c;
+	Uniform1i:                proc(loc: i32, v0: i32) #cc_c;
+	Uniform2i:                proc(loc: i32, v0, v1: i32) #cc_c;
+	Uniform3i:                proc(loc: i32, v0, v1, v2: i32) #cc_c;
+	Uniform4i:                proc(loc: i32, v0, v1, v2, v3: i32) #cc_c;
+	Uniform1f:                proc(loc: i32, v0: f32) #cc_c;
+	Uniform2f:                proc(loc: i32, v0, v1: f32) #cc_c;
+	Uniform3f:                proc(loc: i32, v0, v1, v2: f32) #cc_c;
+	Uniform4f:                proc(loc: i32, v0, v1, v2, v3: f32) #cc_c;
+	UniformMatrix4fv:         proc(loc: i32, count: u32, transpose: i32, value: ^f32) #cc_c;
 
-GetUniformLocation:       proc(program: u32, name: ^byte) -> i32 #cc_c;
+	GetUniformLocation:       proc(program: u32, name: ^u8) -> i32 #cc_c;
+)
 
-init :: proc() {
-	set_proc_address :: proc(p: rawptr, name: string) #inline { (cast(^(proc() #cc_c))p)^ = GetProcAddress(name); }
+proc init() {
+	proc set_proc_address(p: rawptr, name: string) #inline {
+		var x = ^rawptr(p);
+		x^ = get_proc_address(name);
+	}
 
-	set_proc_address(^GenBuffers,              "glGenBuffers\x00");
-	set_proc_address(^GenVertexArrays,         "glGenVertexArrays\x00");
-	set_proc_address(^GenSamplers,             "glGenSamplers\x00");
-	set_proc_address(^BindBuffer,              "glBindBuffer\x00");
-	set_proc_address(^BindSampler,             "glBindSampler\x00");
-	set_proc_address(^BindVertexArray,         "glBindVertexArray\x00");
-	set_proc_address(^BufferData,              "glBufferData\x00");
-	set_proc_address(^BufferSubData,           "glBufferSubData\x00");
+	set_proc_address(&GenBuffers,              "glGenBuffers\x00");
+	set_proc_address(&GenVertexArrays,         "glGenVertexArrays\x00");
+	set_proc_address(&GenSamplers,             "glGenSamplers\x00");
+	set_proc_address(&DeleteBuffers,           "glDeleteBuffers\x00");
+	set_proc_address(&BindBuffer,              "glBindBuffer\x00");
+	set_proc_address(&BindSampler,             "glBindSampler\x00");
+	set_proc_address(&BindVertexArray,         "glBindVertexArray\x00");
+	set_proc_address(&DeleteVertexArrays,      "glDeleteVertexArrays\x00");
+	set_proc_address(&BufferData,              "glBufferData\x00");
+	set_proc_address(&BufferSubData,           "glBufferSubData\x00");
 
-	set_proc_address(^DrawArrays,              "glDrawArrays\x00");
-	set_proc_address(^DrawElements,            "glDrawElements\x00");
+	set_proc_address(&DrawArrays,              "glDrawArrays\x00");
+	set_proc_address(&DrawElements,            "glDrawElements\x00");
 
-	set_proc_address(^MapBuffer,               "glMapBuffer\x00");
-	set_proc_address(^UnmapBuffer,             "glUnmapBuffer\x00");
+	set_proc_address(&MapBuffer,               "glMapBuffer\x00");
+	set_proc_address(&UnmapBuffer,             "glUnmapBuffer\x00");
 
-	set_proc_address(^VertexAttribPointer,     "glVertexAttribPointer\x00");
-	set_proc_address(^EnableVertexAttribArray, "glEnableVertexAttribArray\x00");
+	set_proc_address(&VertexAttribPointer,     "glVertexAttribPointer\x00");
+	set_proc_address(&EnableVertexAttribArray, "glEnableVertexAttribArray\x00");
 
-	set_proc_address(^CreateShader,            "glCreateShader\x00");
-	set_proc_address(^ShaderSource,            "glShaderSource\x00");
-	set_proc_address(^CompileShader,           "glCompileShader\x00");
-	set_proc_address(^CreateProgram,           "glCreateProgram\x00");
-	set_proc_address(^AttachShader,            "glAttachShader\x00");
-	set_proc_address(^DetachShader,            "glDetachShader\x00");
-	set_proc_address(^DeleteShader,            "glDeleteShader\x00");
-	set_proc_address(^LinkProgram,             "glLinkProgram\x00");
-	set_proc_address(^UseProgram,              "glUseProgram\x00");
-	set_proc_address(^DeleteProgram,           "glDeleteProgram\x00");
+	set_proc_address(&CreateShader,            "glCreateShader\x00");
+	set_proc_address(&ShaderSource,            "glShaderSource\x00");
+	set_proc_address(&CompileShader,           "glCompileShader\x00");
+	set_proc_address(&CreateProgram,           "glCreateProgram\x00");
+	set_proc_address(&AttachShader,            "glAttachShader\x00");
+	set_proc_address(&DetachShader,            "glDetachShader\x00");
+	set_proc_address(&DeleteShader,            "glDeleteShader\x00");
+	set_proc_address(&LinkProgram,             "glLinkProgram\x00");
+	set_proc_address(&UseProgram,              "glUseProgram\x00");
+	set_proc_address(&DeleteProgram,           "glDeleteProgram\x00");
 
-	set_proc_address(^GetShaderiv,             "glGetShaderiv\x00");
-	set_proc_address(^GetProgramiv,            "glGetProgramiv\x00");
-	set_proc_address(^GetShaderInfoLog,        "glGetShaderInfoLog\x00");
-	set_proc_address(^GetProgramInfoLog,       "glGetProgramInfoLog\x00");
+	set_proc_address(&GetShaderiv,             "glGetShaderiv\x00");
+	set_proc_address(&GetProgramiv,            "glGetProgramiv\x00");
+	set_proc_address(&GetShaderInfoLog,        "glGetShaderInfoLog\x00");
+	set_proc_address(&GetProgramInfoLog,       "glGetProgramInfoLog\x00");
 
-	set_proc_address(^ActiveTexture,           "glActiveTexture\x00");
-	set_proc_address(^GenerateMipmap,          "glGenerateMipmap\x00");
+	set_proc_address(&ActiveTexture,           "glActiveTexture\x00");
+	set_proc_address(&GenerateMipmap,          "glGenerateMipmap\x00");
 
-	set_proc_address(^Uniform1i,               "glUniform1i\x00");
-	set_proc_address(^UniformMatrix4fv,        "glUniformMatrix4fv\x00");
+	set_proc_address(&Uniform1i,               "glUniform1i\x00");
+	set_proc_address(&UniformMatrix4fv,        "glUniformMatrix4fv\x00");
 
-	set_proc_address(^GetUniformLocation,      "glGetUniformLocation\x00");
+	set_proc_address(&GetUniformLocation,      "glGetUniformLocation\x00");
 
-	set_proc_address(^SamplerParameteri,       "glSamplerParameteri\x00");
-	set_proc_address(^SamplerParameterf,       "glSamplerParameterf\x00");
-	set_proc_address(^SamplerParameteriv,      "glSamplerParameteriv\x00");
-	set_proc_address(^SamplerParameterfv,      "glSamplerParameterfv\x00");
-	set_proc_address(^SamplerParameterIiv,     "glSamplerParameterIiv\x00");
-	set_proc_address(^SamplerParameterIuiv,    "glSamplerParameterIuiv\x00");
+	set_proc_address(&SamplerParameteri,       "glSamplerParameteri\x00");
+	set_proc_address(&SamplerParameterf,       "glSamplerParameterf\x00");
+	set_proc_address(&SamplerParameteriv,      "glSamplerParameteriv\x00");
+	set_proc_address(&SamplerParameterfv,      "glSamplerParameterfv\x00");
+	set_proc_address(&SamplerParameterIiv,     "glSamplerParameterIiv\x00");
+	set_proc_address(&SamplerParameterIuiv,    "glSamplerParameterIuiv\x00");
 }
 

core/os.odin

@@ -1,3 +1,49 @@
-#load "os_windows.odin" when ODIN_OS == "windows";
-#load "os_x.odin" when ODIN_OS == "osx";
+import_load (
+	"os_windows.odin" when ODIN_OS == "windows";
+	"os_x.odin"       when ODIN_OS == "osx";
+	"os_linux.odin"   when ODIN_OS == "linux";
+)
 
+proc write_string(fd: Handle, str: string) -> (int, Errno) {
+	return write(fd, []u8(str));
+}
+
+proc read_entire_file(name: string) -> ([]u8, bool) {
+	var fd, err = open(name, O_RDONLY, 0);
+	if err != 0 {
+		return nil, false;
+	}
+	defer close(fd);
+
+	var length: i64;
+	if length, err = file_size(fd); err != 0 {
+		return nil, false;
+	}
+
+	if length == 0 {
+		return nil, true;
+	}
+
+	var data = make([]u8, length);
+	if data == nil {
+		return nil, false;
+	}
+
+	var bytes_read, read_err = read(fd, data);
+	if read_err != 0 {
+		free(data);
+		return nil, false;
+	}
+	return data[0..<bytes_read], true;
+}
+
+proc write_entire_file(name: string, data: []u8) -> bool {
+	var fd, err = open(name, O_WRONLY, 0);
+	if err != 0 {
+		return false;
+	}
+	defer close(fd);
+
+	var bytes_written, write_err = write(fd, data);
+	return write_err != 0;
+}

core/os_linux.odin

@@ -0,0 +1,281 @@
+foreign_system_library (
+	dl   "dl";
+	libc "c";
+)
+import "strings.odin";
+
+type (
+	Handle   i32;
+	FileTime u64;
+	Errno    i32;
+)
+
+const (
+	O_RDONLY   = 0x00000;
+	O_WRONLY   = 0x00001;
+	O_RDWR     = 0x00002;
+	O_CREAT    = 0x00040;
+	O_EXCL     = 0x00080;
+	O_NOCTTY   = 0x00100;
+	O_TRUNC    = 0x00200;
+	O_NONBLOCK = 0x00800;
+	O_APPEND   = 0x00400;
+	O_SYNC     = 0x01000;
+	O_ASYNC    = 0x02000;
+	O_CLOEXEC  = 0x80000;
+)
+
+const (
+	SEEK_SET   = 0;
+	SEEK_CUR   = 1;
+	SEEK_END   = 2;
+	SEEK_DATA  = 3;
+	SEEK_HOLE  = 4;
+	SEEK_MAX   = SEEK_HOLE;
+)
+const (
+	// NOTE(zangent): These are OS specific!
+	// Do not mix these up!
+	RTLD_LAZY         = 0x001;
+	RTLD_NOW          = 0x002;
+	RTLD_BINDING_MASK = 0x3;
+	RTLD_GLOBAL       = 0x100;
+)
+
+// "Argv" arguments converted to Odin strings
+var args = _alloc_command_line_arguments();
+
+type _FileTime struct #ordered {
+	seconds:     i64,
+	nanoseconds: i32,
+	reserved:    i32,
+}
+
+// Translated from
+//  https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6/+/jb-dev/sysroot/usr/include/bits/stat.h
+// Validity is not guaranteed.
+
+type Stat struct #ordered {
+	device_id:     u64, // ID of device containing file
+	serial:        u64, // File serial number
+	nlink:         u32, // Number of hard links
+	mode:          u32, // Mode of the file
+	uid:           u32, // User ID of the file's owner
+	gid:           u32, // Group ID of the file's group
+	_padding:      i32, // 32 bits of padding
+	rdev:          u64, // Device ID, if device
+	size:          i64, // Size of the file, in bytes
+	block_size:    i64, // Optimal bllocksize for I/O
+	blocks:        i64, // Number of 512-byte blocks allocated
+
+	last_access:   _FileTime, // Time of last access
+	modified:      _FileTime, // Time of last modification
+	status_change: _FileTime, // Time of last status change
+
+	_reserve1,
+	_reserve2,
+	_reserve3:     i64,
+	serial_numbe:  u64, // File serial number...? Maybe.
+	_reserve4:     i64,
+};
+
+// File type
+const (
+	S_IFMT   = 0170000; // Type of file mask
+	S_IFIFO  = 0010000; // Named pipe (fifo)
+	S_IFCHR  = 0020000; // Character special
+	S_IFDIR  = 0040000; // Directory
+	S_IFBLK  = 0060000; // Block special
+	S_IFREG  = 0100000; // Regular
+	S_IFLNK  = 0120000; // Symbolic link
+	S_IFSOCK = 0140000; // Socket
+
+	// File mode
+	// Read, write, execute/search by owner
+	S_IRWXU = 0000700; // RWX mask for owner
+	S_IRUSR = 0000400; // R for owner
+	S_IWUSR = 0000200; // W for owner
+	S_IXUSR = 0000100; // X for owner
+
+	// Read, write, execute/search by group
+	S_IRWXG = 0000070; // RWX mask for group
+	S_IRGRP = 0000040; // R for group
+	S_IWGRP = 0000020; // W for group
+	S_IXGRP = 0000010; // X for group
+
+	// Read, write, execute/search by others
+	S_IRWXO = 0000007; // RWX mask for other
+	S_IROTH = 0000004; // R for other
+	S_IWOTH = 0000002; // W for other
+	S_IXOTH = 0000001; // X for other
+
+	S_ISUID = 0004000; // Set user id on execution
+	S_ISGID = 0002000; // Set group id on execution
+	S_ISVTX = 0001000; // Directory restrcted delete
+)
+
+proc S_ISLNK (m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFLNK; }
+proc S_ISREG (m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFREG; }
+proc S_ISDIR (m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFDIR; }
+proc S_ISCHR (m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFCHR; }
+proc S_ISBLK (m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFBLK; }
+proc S_ISFIFO(m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFIFO; }
+proc S_ISSOCK(m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFSOCK;}
+
+const (
+	R_OK = 4; // Test for read permission
+	W_OK = 2; // Test for write permission
+	X_OK = 1; // Test for execute permission
+	F_OK = 0; // Test for file existance
+)
+
+foreign libc {
+	proc _unix_open  (path: ^u8, mode: int) -> Handle                  #link_name "open";
+	proc _unix_close (fd: Handle) -> i32                               #link_name "close";
+	proc _unix_read  (fd: Handle, buf: rawptr, size: int) -> int       #link_name "read";
+	proc _unix_write (fd: Handle, buf: rawptr, size: int) -> int       #link_name "write";
+	proc _unix_seek  (fd: Handle, offset: i64, whence: i32) -> i64     #link_name "lseek64";
+	proc _unix_gettid() -> u64                                         #link_name "gettid";
+	proc _unix_stat  (path: ^u8, stat: ^Stat) -> i32                   #link_name "stat";
+	proc _unix_access(path: ^u8, mask: int) -> i32                     #link_name "access";
+
+	proc _unix_malloc (size: int) -> rawptr                            #link_name "malloc";
+	proc _unix_free   (ptr: rawptr)                                    #link_name "free";
+	proc _unix_realloc(ptr: rawptr, size: int) -> rawptr               #link_name "realloc";
+	proc _unix_getenv (^u8) -> ^u8                                     #link_name "getenv";
+
+	proc _unix_exit(status: int)                                       #link_name "exit";
+}
+foreign dl {
+	proc _unix_dlopen (filename: ^u8, flags: int) -> rawptr            #link_name "dlopen";
+	proc _unix_dlsym  (handle: rawptr, symbol: ^u8) ->  (proc() #cc_c) #link_name "dlsym";
+	proc _unix_dlclose(handle: rawptr) -> int                          #link_name "dlclose";
+	proc _unix_dlerror() -> ^u8                                        #link_name "dlerror";
+}
+
+// TODO(zangent): Change this to just `open` when Bill fixes overloading.
+proc open_simple(path: string, mode: int) -> (Handle, Errno) {
+
+	var cstr = strings.new_c_string(path);
+	var handle = _unix_open(cstr, mode);
+	free(cstr);
+	if(handle == -1) {
+		return 0, 1;
+	}
+	return handle, 0;
+}
+// NOTE(zangent): This is here for compatability reasons. Should this be here?
+proc open(path: string, mode: int = O_RDONLY, perm: u32 = 0) -> (Handle, Errno) {
+	return open_simple(path, mode);
+}
+
+proc close(fd: Handle) {
+	_unix_close(fd);
+}
+
+proc read(fd: Handle, data: []u8) -> (int, Errno) {
+	var sz = _unix_read(fd, &data[0], len(data));
+	return sz, 0;
+}
+
+proc write(fd: Handle, data: []u8) -> (int, Errno) {
+	var sz = _unix_write(fd, &data[0], len(data));
+	return sz, 0;
+}
+
+proc seek(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
+	var res = _unix_seek(fd, offset, i32(whence));
+	return res, 0;
+}
+
+proc file_size(fd: Handle) -> (i64, Errno) {
+	var prev, _ = seek(fd, 0, SEEK_CUR);
+	var size, err = seek(fd, 0, SEEK_END);
+	seek(fd, prev, SEEK_SET);
+	return size, err;
+}
+
+
+// NOTE(bill): Uses startup to initialize it
+var (
+	stdin:  Handle = 0;
+	stdout: Handle = 1;
+	stderr: Handle = 2;
+)
+/* TODO(zangent): Implement these!
+proc last_write_time(fd: Handle) -> FileTime {}
+proc last_write_time_by_name(name: string) -> FileTime {}
+*/
+
+proc stat(path: string) -> (Stat, int) #inline {
+	var s: Stat;
+	var cstr = strings.new_c_string(path);
+	defer free(cstr);
+	var ret_int = _unix_stat(cstr, &s);
+	return s, int(ret_int);
+}
+
+proc access(path: string, mask: int) -> bool #inline {
+	var cstr = strings.new_c_string(path);
+	defer free(cstr);
+	return _unix_access(cstr, mask) == 0;
+}
+
+proc heap_alloc(size: int) -> rawptr {
+	assert(size > 0);
+	return _unix_malloc(size);
+}
+
+proc heap_resize(ptr: rawptr, new_size: int) -> rawptr {
+	return _unix_realloc(ptr, new_size);
+}
+
+proc heap_free(ptr: rawptr) {
+	_unix_free(ptr);
+}
+
+proc getenv(name: string) -> (string, bool) {
+	var path_str = strings.new_c_string(name);
+	var cstr: ^u8 = _unix_getenv(path_str);
+	free(path_str);
+	if(cstr == nil) {
+		return "", false;
+	}
+	return strings.to_odin_string(cstr), true;
+}
+
+proc exit(code: int) {
+	_unix_exit(code);
+}
+
+proc current_thread_id() -> int {
+	// return int(_unix_gettid());
+	return 0;
+}
+
+proc dlopen(filename: string, flags: int) -> rawptr #inline {
+	var cstr = strings.new_c_string(filename);
+	var handle = _unix_dlopen(cstr, flags);
+	free(cstr);
+	return handle;
+}
+proc dlsym(handle: rawptr, symbol: string) -> (proc() #cc_c) #inline {
+	assert(handle != nil);
+	var cstr = strings.new_c_string(symbol);
+	var proc_handle = _unix_dlsym(handle, cstr);
+	free(cstr);
+	return proc_handle;
+}
+proc dlclose(handle: rawptr) -> bool #inline {
+	assert(handle != nil);
+	return _unix_dlclose(handle) == 0;
+}
+proc dlerror() -> string {
+	return strings.to_odin_string(_unix_dlerror());
+}
+
+
+proc _alloc_command_line_arguments() -> []string {
+	// TODO(bill):
+	return nil;
+}

core/os_windows.odin

@@ -1,166 +1,217 @@
-#import w "sys/windows.odin";
-#import "fmt.odin";
+import win32 "sys/windows.odin";
+
+type (
+	Handle   int;
+	FileTime u64;
+)
+
+const INVALID_HANDLE: Handle = -1;
 
 
-Handle    :: int;
-File_Time :: u64;
-Errno     :: int;
+const (
+	O_RDONLY   = 0x00000;
+	O_WRONLY   = 0x00001;
+	O_RDWR     = 0x00002;
+	O_CREAT    = 0x00040;
+	O_EXCL     = 0x00080;
+	O_NOCTTY   = 0x00100;
+	O_TRUNC    = 0x00200;
+	O_NONBLOCK = 0x00800;
+	O_APPEND   = 0x00400;
+	O_SYNC     = 0x01000;
+	O_ASYNC    = 0x02000;
+	O_CLOEXEC  = 0x80000;
+)
 
-INVALID_HANDLE: Handle : -1;
+type Errno int;
+const (
+	ERROR_NONE:               Errno = 0;
+	ERROR_FILE_NOT_FOUND            = 2;
+	ERROR_PATH_NOT_FOUND            = 3;
+	ERROR_ACCESS_DENIED             = 5;
+	ERROR_NO_MORE_FILES             = 18;
+	ERROR_HANDLE_EOF                = 38;
+	ERROR_NETNAME_DELETED           = 64;
+	ERROR_FILE_EXISTS               = 80;
+	ERROR_BROKEN_PIPE               = 109;
+	ERROR_BUFFER_OVERFLOW           = 111;
+	ERROR_INSUFFICIENT_BUFFER       = 122;
+	ERROR_MOD_NOT_FOUND             = 126;
+	ERROR_PROC_NOT_FOUND            = 127;
+	ERROR_DIR_NOT_EMPTY             = 145;
+	ERROR_ALREADY_EXISTS            = 183;
+	ERROR_ENVVAR_NOT_FOUND          = 203;
+	ERROR_MORE_DATA                 = 234;
+	ERROR_OPERATION_ABORTED         = 995;
+	ERROR_IO_PENDING                = 997;
+	ERROR_NOT_FOUND                 = 1168;
+	ERROR_PRIVILEGE_NOT_HELD        = 1314;
+	WSAEACCES                       = 10013;
+	WSAECONNRESET                   = 10054;
+
+	// Windows reserves errors >= 1<<29 for application use
+	ERROR_FILE_IS_PIPE              = 1<<29 + 0;
+)
+
+// "Argv" arguments converted to Odin strings
+var args = _alloc_command_line_arguments();
 
 
-O_RDONLY   :: 0x00000;
-O_WRONLY   :: 0x00001;
-O_RDWR     :: 0x00002;
-O_CREAT    :: 0x00040;
-O_EXCL     :: 0x00080;
-O_NOCTTY   :: 0x00100;
-O_TRUNC    :: 0x00200;
-O_NONBLOCK :: 0x00800;
-O_APPEND   :: 0x00400;
-O_SYNC     :: 0x01000;
-O_ASYNC    :: 0x02000;
-O_CLOEXEC  :: 0x80000;
-
-ERROR_NONE:                Errno : 0;
-ERROR_FILE_NOT_FOUND:      Errno : 2;
-ERROR_PATH_NOT_FOUND:      Errno : 3;
-ERROR_ACCESS_DENIED:       Errno : 5;
-ERROR_NO_MORE_FILES:       Errno : 18;
-ERROR_HANDLE_EOF:          Errno : 38;
-ERROR_NETNAME_DELETED:     Errno : 64;
-ERROR_FILE_EXISTS:         Errno : 80;
-ERROR_BROKEN_PIPE:         Errno : 109;
-ERROR_BUFFER_OVERFLOW:     Errno : 111;
-ERROR_INSUFFICIENT_BUFFER: Errno : 122;
-ERROR_MOD_NOT_FOUND:       Errno : 126;
-ERROR_PROC_NOT_FOUND:      Errno : 127;
-ERROR_DIR_NOT_EMPTY:       Errno : 145;
-ERROR_ALREADY_EXISTS:      Errno : 183;
-ERROR_ENVVAR_NOT_FOUND:    Errno : 203;
-ERROR_MORE_DATA:           Errno : 234;
-ERROR_OPERATION_ABORTED:   Errno : 995;
-ERROR_IO_PENDING:          Errno : 997;
-ERROR_NOT_FOUND:           Errno : 1168;
-ERROR_PRIVILEGE_NOT_HELD:  Errno : 1314;
-WSAEACCES:                 Errno : 10013;
-WSAECONNRESET:             Errno : 10054;
-
-// Windows reserves errors >= 1<<29 for application use
-ERROR_FILE_IS_PIPE: Errno : 1<<29 + 0;
-
-
-
-
-open :: proc(path: string, mode: int, perm: u32) -> (Handle, Errno) {
-	if path.count == 0 {
+proc open(path: string, mode: int = O_RDONLY, perm: u32 = 0) -> (Handle, Errno) {
+	if len(path) == 0 {
 		return INVALID_HANDLE, ERROR_FILE_NOT_FOUND;
 	}
 
-	access: u32;
+	var access: u32;
 	match mode & (O_RDONLY|O_WRONLY|O_RDWR) {
-	case O_RDONLY: access = w.FILE_GENERIC_READ;
-	case O_WRONLY: access = w.FILE_GENERIC_WRITE;
-	case O_RDWR:   access = w.FILE_GENERIC_READ | w.FILE_GENERIC_WRITE;
+	case O_RDONLY: access = win32.FILE_GENERIC_READ;
+	case O_WRONLY: access = win32.FILE_GENERIC_WRITE;
+	case O_RDWR:   access = win32.FILE_GENERIC_READ | win32.FILE_GENERIC_WRITE;
 	}
 
 	if mode&O_CREAT != 0 {
-		access |= w.FILE_GENERIC_WRITE;
+		access |= win32.FILE_GENERIC_WRITE;
 	}
 	if mode&O_APPEND != 0 {
-		access &~= w.FILE_GENERIC_WRITE;
-		access |=  w.FILE_APPEND_DATA;
+		access &~= win32.FILE_GENERIC_WRITE;
+		access |=  win32.FILE_APPEND_DATA;
 	}
 
-	share_mode := cast(u32)(w.FILE_SHARE_READ|w.FILE_SHARE_WRITE);
-	sa: ^w.Security_Attributes = nil;
-	sa_inherit := w.Security_Attributes{length = size_of(w.Security_Attributes), inherit_handle = 1};
+	var share_mode = u32(win32.FILE_SHARE_READ|win32.FILE_SHARE_WRITE);
+	var sa: ^win32.Security_Attributes = nil;
+	var sa_inherit = win32.Security_Attributes{length = size_of(win32.Security_Attributes), inherit_handle = 1};
 	if mode&O_CLOEXEC == 0 {
-		sa = ^sa_inherit;
+		sa = &sa_inherit;
 	}
 
-	create_mode: u32;
+	var create_mode: u32;
 	match {
 	case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL):
-		create_mode = w.CREATE_NEW;
+		create_mode = win32.CREATE_NEW;
 	case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC):
-		create_mode = w.CREATE_ALWAYS;
+		create_mode = win32.CREATE_ALWAYS;
 	case mode&O_CREAT == O_CREAT:
-		create_mode = w.OPEN_ALWAYS;
+		create_mode = win32.OPEN_ALWAYS;
 	case mode&O_TRUNC == O_TRUNC:
-		create_mode = w.TRUNCATE_EXISTING;
-	default:
-		create_mode = w.OPEN_EXISTING;
+		create_mode = win32.TRUNCATE_EXISTING;
+	case:
+		create_mode = win32.OPEN_EXISTING;
 	}
 
-	buf: [300]byte;
-	copy(buf[..], cast([]byte)path);
+	var buf: [300]u8;
+	copy(buf[..], []u8(path));
 
-	handle := cast(Handle)w.CreateFileA(^buf[0], access, share_mode, sa, create_mode, w.FILE_ATTRIBUTE_NORMAL, nil);
+	var handle = Handle(win32.create_file_a(&buf[0], access, share_mode, sa, create_mode, win32.FILE_ATTRIBUTE_NORMAL, nil));
 	if handle != INVALID_HANDLE {
 		return handle, ERROR_NONE;
 	}
-	err := w.GetLastError();
-	return INVALID_HANDLE, cast(Errno)err;
+	var err = win32.get_last_error();
+	return INVALID_HANDLE, Errno(err);
 }
 
-close :: proc(fd: Handle) {
-	w.CloseHandle(cast(w.Handle)fd);
+proc close(fd: Handle) {
+	win32.close_handle(win32.Handle(fd));
 }
 
-write :: proc(fd: Handle, data: []byte) -> (int, Errno) {
-	bytes_written: i32;
-	e := w.WriteFile(cast(w.Handle)fd, data.data, cast(i32)data.count, ^bytes_written, nil);
-	if e == w.FALSE {
-		err := w.GetLastError();
-		return 0, cast(Errno)err;
+
+proc write(fd: Handle, data: []u8) -> (int, Errno) {
+	if len(data) == 0 {
+		return 0, ERROR_NONE;
 	}
-	return cast(int)bytes_written, ERROR_NONE;
-}
+	var single_write_length: i32;
+	var total_write: i64;
+	var length = i64(len(data));
 
-read :: proc(fd: Handle, data: []byte) -> (int, Errno) {
-	bytes_read: i32;
-	e := w.ReadFile(cast(w.Handle)fd, data.data, cast(u32)data.count, ^bytes_read, nil);
-	if e == w.FALSE {
-		err := w.GetLastError();
-		return 0, cast(Errno)err;
+	for total_write < length {
+		var remaining = length - total_write;
+		var to_read: i32;
+		const MAX = 1<<31-1;
+		if remaining <= MAX {
+			to_read = i32(remaining);
+		} else {
+			to_read = MAX;
+		}
+		var e = win32.write_file(win32.Handle(fd), &data[total_write], to_read, &single_write_length, nil);
+		if single_write_length <= 0 || e == win32.FALSE {
+			var err = win32.get_last_error();
+			return int(total_write), Errno(e);
+		}
+		total_write += i64(single_write_length);
 	}
-	return cast(int)bytes_read, ERROR_NONE;
+	return int(total_write), ERROR_NONE;
 }
 
-seek :: proc(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
-	using w;
-	w: u32;
+proc read(fd: Handle, data: []u8) -> (int, Errno) {
+	if len(data) == 0 {
+		return 0, ERROR_NONE;
+	}
+
+	var single_read_length: i32;
+	var total_read: i64;
+	var length = i64(len(data));
+
+	for total_read < length {
+		var remaining = length - total_read;
+		var to_read: u32;
+		const MAX = 1<<32-1;
+		if remaining <= MAX {
+			to_read = u32(remaining);
+		} else {
+			to_read = MAX;
+		}
+
+		var e = win32.read_file(win32.Handle(fd), &data[total_read], to_read, &single_read_length, nil);
+		if single_read_length <= 0 || e == win32.FALSE {
+			var err = win32.get_last_error();
+			return int(total_read), Errno(e);
+		}
+		total_read += i64(single_read_length);
+	}
+	return int(total_read), ERROR_NONE;
+}
+
+proc seek(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
+	var w: u32;
 	match whence {
-	case 0: w = FILE_BEGIN;
-	case 1: w = FILE_CURRENT;
-	case 2: w = FILE_END;
+	case 0: w = win32.FILE_BEGIN;
+	case 1: w = win32.FILE_CURRENT;
+	case 2: w = win32.FILE_END;
 	}
-	hi := cast(i32)(offset>>32);
-	lo := cast(i32)(offset);
-	ft := GetFileType(cast(Handle)fd);
-	if ft == FILE_TYPE_PIPE {
+	var hi = i32(offset>>32);
+	var lo = i32(offset);
+	var ft = win32.get_file_type(win32.Handle(fd));
+	if ft == win32.FILE_TYPE_PIPE {
 		return 0, ERROR_FILE_IS_PIPE;
 	}
-	dw_ptr := SetFilePointer(cast(Handle)fd, lo, ^hi, w);
-	if dw_ptr == INVALID_SET_FILE_POINTER {
-		err := GetLastError();
-		return 0, cast(Errno)err;
+	var dw_ptr = win32.set_file_pointer(win32.Handle(fd), lo, &hi, w);
+	if dw_ptr == win32.INVALID_SET_FILE_POINTER {
+		var err = win32.get_last_error();
+		return 0, Errno(err);
 	}
-	return cast(i64)hi<<32 + cast(i64)dw_ptr, ERROR_NONE;
+	return i64(hi)<<32 + i64(dw_ptr), ERROR_NONE;
 }
 
+proc file_size(fd: Handle) -> (i64, Errno) {
+	var length: i64;
+	var err: Errno;
+	if win32.get_file_size_ex(win32.Handle(fd), &length) == 0 {
+		err = Errno(win32.get_last_error());
+	}
+	return length, err;
+}
+
+
 
 // NOTE(bill): Uses startup to initialize it
-stdin  := get_std_handle(w.STD_INPUT_HANDLE);
-stdout := get_std_handle(w.STD_OUTPUT_HANDLE);
-stderr := get_std_handle(w.STD_ERROR_HANDLE);
+var stdin  = get_std_handle(win32.STD_INPUT_HANDLE);
+var stdout = get_std_handle(win32.STD_OUTPUT_HANDLE);
+var stderr = get_std_handle(win32.STD_ERROR_HANDLE);
 
 
-get_std_handle :: proc(h: int) -> Handle {
-	fd := w.GetStdHandle(cast(i32)h);
-	w.SetHandleInformation(fd, w.HANDLE_FLAG_INHERIT, 0);
-	return cast(Handle)fd;
+proc get_std_handle(h: int) -> Handle {
+	var fd = win32.get_std_handle(i32(h));
+	win32.set_handle_information(fd, win32.HANDLE_FLAG_INHERIT, 0);
+	return Handle(fd);
 }
 
 
@@ -168,88 +219,38 @@ get_std_handle :: proc(h: int) -> Handle {
 
 
 
-last_write_time :: proc(fd: Handle) -> File_Time {
-	file_info: w.By_Handle_File_Information;
-	w.GetFileInformationByHandle(cast(w.Handle)fd, ^file_info);
-	lo := cast(File_Time)file_info.last_write_time.lo;
-	hi := cast(File_Time)file_info.last_write_time.hi;
+proc last_write_time(fd: Handle) -> FileTime {
+	var file_info: win32.ByHandleFileInformation;
+	win32.get_file_information_by_handle(win32.Handle(fd), &file_info);
+	var lo = FileTime(file_info.last_write_time.lo);
+	var hi = FileTime(file_info.last_write_time.hi);
 	return lo | hi << 32;
 }
 
-last_write_time_by_name :: proc(name: string) -> File_Time {
-	last_write_time: w.Filetime;
-	data: w.File_Attribute_Data;
-	buf: [1024]byte;
+proc last_write_time_by_name(name: string) -> FileTime {
+	var last_write_time: win32.Filetime;
+	var data: win32.FileAttributeData;
+	var buf: [1024]u8;
 
-	assert(buf.count > name.count);
+	assert(len(buf) > len(name));
 
-	copy(buf[..], cast([]byte)name);
+	copy(buf[..], []u8(name));
 
-	if w.GetFileAttributesExA(^buf[0], w.GetFileExInfoStandard, ^data) != 0 {
+	if win32.get_file_attributes_ex_a(&buf[0], win32.GetFileExInfoStandard, &data) != 0 {
 		last_write_time = data.last_write_time;
 	}
 
-	l := cast(File_Time)last_write_time.lo;
-	h := cast(File_Time)last_write_time.hi;
+	var l = FileTime(last_write_time.lo);
+	var h = FileTime(last_write_time.hi);
 	return l | h << 32;
 }
 
 
 
-
-
-read_entire_file :: proc(name: string) -> ([]byte, bool) {
-	buf: [300]byte;
-	copy(buf[..], cast([]byte)name);
-
-	fd, err := open(name, O_RDONLY, 0);
-	if err != ERROR_NONE {
-		return nil, false;
-	}
-	defer close(fd);
-
-	length: i64;
-	file_size_ok := w.GetFileSizeEx(cast(w.Handle)fd, ^length) != 0;
-	if !file_size_ok {
-		return nil, false;
-	}
-
-	data := new_slice(u8, length);
-	if data.data == nil {
-		return nil, false;
-	}
-
-	single_read_length: i32;
-	total_read: i64;
-
-	for total_read < length {
-		remaining := length - total_read;
-		to_read: u32;
-		MAX :: 1<<32-1;
-		if remaining <= MAX {
-			to_read = cast(u32)remaining;
-		} else {
-			to_read = MAX;
-		}
-
-		w.ReadFile(cast(w.Handle)fd, ^data[total_read], to_read, ^single_read_length, nil);
-		if single_read_length <= 0 {
-			free(data);
-			return nil, false;
-		}
-
-		total_read += cast(i64)single_read_length;
-	}
-
-	return data, true;
+proc heap_alloc(size: int) -> rawptr {
+	return win32.heap_alloc(win32.get_process_heap(), win32.HEAP_ZERO_MEMORY, size);
 }
-
-
-
-heap_alloc :: proc(size: int) -> rawptr {
-	return w.HeapAlloc(w.GetProcessHeap(), w.HEAP_ZERO_MEMORY, size);
-}
-heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr {
+proc heap_resize(ptr: rawptr, new_size: int) -> rawptr {
 	if new_size == 0 {
 		heap_free(ptr);
 		return nil;
@@ -257,25 +258,88 @@ heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr {
 	if ptr == nil {
 		return heap_alloc(new_size);
 	}
-	return w.HeapReAlloc(w.GetProcessHeap(), w.HEAP_ZERO_MEMORY, ptr, new_size);
+	return win32.heap_realloc(win32.get_process_heap(), win32.HEAP_ZERO_MEMORY, ptr, new_size);
 }
-heap_free :: proc(ptr: rawptr) {
+proc heap_free(ptr: rawptr) {
 	if ptr == nil {
 		return;
 	}
-	w.HeapFree(w.GetProcessHeap(), 0, ptr);
+	win32.heap_free(win32.get_process_heap(), 0, ptr);
 }
 
 
-exit :: proc(code: int) {
-	w.ExitProcess(cast(u32)code);
+proc exit(code: int) {
+	win32.exit_process(u32(code));
 }
 
 
 
-current_thread_id :: proc() -> int {
-	return cast(int)w.GetCurrentThreadId();
+proc current_thread_id() -> int {
+	return int(win32.get_current_thread_id());
 }
 
 
 
+
+proc _alloc_command_line_arguments() -> []string {
+	proc alloc_ucs2_to_utf8(wstr: ^u16) -> string {
+		var wstr_len = 0;
+		for (wstr+wstr_len)^ != 0 {
+			wstr_len++;
+		}
+		var len = 2*wstr_len-1;
+		var buf = make([]u8, len+1);
+		var str = slice_ptr(wstr, wstr_len+1);
+
+		var i, j = 0, 0;
+		for str[j] != 0 {
+			match {
+			case str[j] < 0x80:
+				if i+1 > len {
+					return "";
+				}
+				buf[i] = u8(str[j]); i++;
+				j++;
+			case str[j] < 0x800:
+				if i+2 > len {
+					return "";
+				}
+				buf[i] = u8(0xc0 + (str[j]>>6));   i++;
+				buf[i] = u8(0x80 + (str[j]&0x3f)); i++;
+				j++;
+			case 0xd800 <= str[j] && str[j] < 0xdc00:
+				if i+4 > len {
+					return "";
+				}
+				var c = rune((str[j] - 0xd800) << 10) + rune((str[j+1]) - 0xdc00) + 0x10000;
+				buf[i] = u8(0xf0 +  (c >> 18));         i++;
+				buf[i] = u8(0x80 + ((c >> 12) & 0x3f)); i++;
+				buf[i] = u8(0x80 + ((c >>  6) & 0x3f)); i++;
+				buf[i] = u8(0x80 + ((c      ) & 0x3f)); i++;
+				j += 2;
+			case 0xdc00 <= str[j] && str[j] < 0xe000:
+				return "";
+			case:
+				if i+3 > len {
+					return "";
+				}
+				buf[i] = 0xe0 + u8 (str[j] >> 12);         i++;
+				buf[i] = 0x80 + u8((str[j] >>  6) & 0x3f); i++;
+				buf[i] = 0x80 + u8((str[j]      ) & 0x3f); i++;
+				j++;
+			}
+		}
+
+		return string(buf[0..<i]);
+	}
+
+	var arg_count: i32;
+	var arg_list_ptr = win32.command_line_to_argv_w(win32.get_command_line_w(), &arg_count);
+	var arg_list = make([]string, arg_count);
+	for _, i in arg_list {
+		arg_list[i] = alloc_ucs2_to_utf8((arg_list_ptr+i)^);
+	}
+	return arg_list;
+}
+
+

core/os_x.odin

@@ -1,230 +1,292 @@
-#import "fmt.odin";
+foreign_system_library (
+	dl   "dl";
+	libc "c";
+)
 
-Handle    :: i32;
-File_Time :: u64;
-Errno     :: int;
+import "strings.odin";
 
-// INVALID_HANDLE: Handle : -1;
+type (
+	Handle    i32;
+	FileTime  u64;
+	Errno     int;
 
+	AddressSize int;
+)
 
-O_RDONLY   :: 0x00000;
-O_WRONLY   :: 0x00001;
-O_RDWR     :: 0x00002;
-O_CREAT    :: 0x00040;
-O_EXCL     :: 0x00080;
-O_NOCTTY   :: 0x00100;
-O_TRUNC    :: 0x00200;
-O_NONBLOCK :: 0x00800;
-O_APPEND   :: 0x00400;
-O_SYNC     :: 0x01000;
-O_ASYNC    :: 0x02000;
-O_CLOEXEC  :: 0x80000;
+const (
+	O_RDONLY   = 0x00000;
+	O_WRONLY   = 0x00001;
+	O_RDWR     = 0x00002;
+	O_CREAT    = 0x00040;
+	O_EXCL     = 0x00080;
+	O_NOCTTY   = 0x00100;
+	O_TRUNC    = 0x00200;
+	O_NONBLOCK = 0x00800;
+	O_APPEND   = 0x00400;
+	O_SYNC     = 0x01000;
+	O_ASYNC    = 0x02000;
+	O_CLOEXEC  = 0x80000;
+)
+const (
+	SEEK_SET   = 0;
+	SEEK_CUR   = 1;
+	SEEK_END   = 2;
+	SEEK_DATA  = 3;
+	SEEK_HOLE  = 4;
+	SEEK_MAX   = SEEK_HOLE;
+)
 
-// ERROR_NONE:                Errno : 0;
-// ERROR_FILE_NOT_FOUND:      Errno : 2;
-// ERROR_PATH_NOT_FOUND:      Errno : 3;
-// ERROR_ACCESS_DENIED:       Errno : 5;
-// ERROR_NO_MORE_FILES:       Errno : 18;
-// ERROR_HANDLE_EOF:          Errno : 38;
-// ERROR_NETNAME_DELETED:     Errno : 64;
-// ERROR_FILE_EXISTS:         Errno : 80;
-// ERROR_BROKEN_PIPE:         Errno : 109;
-// ERROR_BUFFER_OVERFLOW:     Errno : 111;
-// ERROR_INSUFFICIENT_BUFFER: Errno : 122;
-// ERROR_MOD_NOT_FOUND:       Errno : 126;
-// ERROR_PROC_NOT_FOUND:      Errno : 127;
-// ERROR_DIR_NOT_EMPTY:       Errno : 145;
-// ERROR_ALREADY_EXISTS:      Errno : 183;
-// ERROR_ENVVAR_NOT_FOUND:    Errno : 203;
-// ERROR_MORE_DATA:           Errno : 234;
-// ERROR_OPERATION_ABORTED:   Errno : 995;
-// ERROR_IO_PENDING:          Errno : 997;
-// ERROR_NOT_FOUND:           Errno : 1168;
-// ERROR_PRIVILEGE_NOT_HELD:  Errno : 1314;
-// WSAEACCES:                 Errno : 10013;
-// WSAECONNRESET:             Errno : 10054;
+const (
+	// NOTE(zangent): These are OS specific!
+	// Do not mix these up!
+	RTLD_LAZY     = 0x1;
+	RTLD_NOW      = 0x2;
+	RTLD_LOCAL    = 0x4;
+	RTLD_GLOBAL   = 0x8;
+	RTLD_NODELETE = 0x80;
+	RTLD_NOLOAD   = 0x10;
+	RTLD_FIRST    = 0x100;
+)
 
-// Windows reserves errors >= 1<<29 for application use
-// ERROR_FILE_IS_PIPE: Errno : 1<<29 + 0;
+var args: [dynamic]string;
 
-#foreign_system_library libc "c";
-
-unix_open   :: proc(path: ^u8, mode: int, perm: u32) -> Handle           #foreign libc "open";
-unix_close  :: proc(handle: Handle)                                      #foreign libc "close";
-unix_read   :: proc(handle: Handle, buffer: rawptr, count: int) -> int   #foreign libc "read";
-unix_write  :: proc(handle: Handle, buffer: rawptr, count: int) -> int   #foreign libc "write";
-unix_gettid :: proc() -> u64                                             #foreign libc "gettid";
-
-unix_malloc  :: proc(size: int) -> rawptr                                #foreign libc "malloc";
-unix_free    :: proc(ptr: rawptr)                                        #foreign libc "free";
-unix_realloc :: proc(ptr: rawptr, size: int) -> rawptr                   #foreign libc "realloc";
-
-unix_exit :: proc(status: int)                                           #foreign libc "exit";
-
-
-
-
-open :: proc(path: string, mode: int, perm: u32) -> (Handle, Errno) {
-	return unix_open(path.data, mode, perm), 0;
+type _FileTime struct #ordered {
+	seconds: i64,
+	nanoseconds: i64
 }
 
-close :: proc(fd: Handle) {
+type Stat struct #ordered {
+	device_id : i32, // ID of device containing file
+	mode      : u16, // Mode of the file
+	nlink     : u16, // Number of hard links
+	serial    : u64, // File serial number
+	uid       : u32, // User ID of the file's owner
+	gid       : u32, // Group ID of the file's group
+	rdev      : i32, // Device ID, if device
+
+	last_access   : FileTime, // Time of last access
+	modified      : FileTime, // Time of last modification
+	status_change : FileTime, // Time of last status change
+	created       : FileTime, // Time of creation
+
+	size      : i64,  // Size of the file, in bytes
+	blocks    : i64,  // Number of blocks allocated for the file
+	block_size: i32,  // Optimal blocksize for I/O
+	flags     : u32,  // User-defined flags for the file
+	gen_num   : u32,  // File generation number ...?
+	_spare    : i32,  // RESERVED
+	_reserve1,
+	_reserve2 : i64,  // RESERVED
+};
+
+// File type
+const (
+	S_IFMT   = 0170000; // Type of file mask
+	S_IFIFO  = 0010000; // Named pipe (fifo)
+	S_IFCHR  = 0020000; // Character special
+	S_IFDIR  = 0040000; // Directory
+	S_IFBLK  = 0060000; // Block special
+	S_IFREG  = 0100000; // Regular
+	S_IFLNK  = 0120000; // Symbolic link
+	S_IFSOCK = 0140000; // Socket
+
+	// File mode
+	// Read, write, execute/search by owner
+	S_IRWXU = 0000700; // RWX mask for owner
+	S_IRUSR = 0000400; // R for owner
+	S_IWUSR = 0000200; // W for owner
+	S_IXUSR = 0000100; // X for owner
+
+	// Read, write, execute/search by group
+	S_IRWXG = 0000070; // RWX mask for group
+	S_IRGRP = 0000040; // R for group
+	S_IWGRP = 0000020; // W for group
+	S_IXGRP = 0000010; // X for group
+
+	// Read, write, execute/search by others
+	S_IRWXO = 0000007; // RWX mask for other
+	S_IROTH = 0000004; // R for other
+	S_IWOTH = 0000002; // W for other
+	S_IXOTH = 0000001; // X for other
+
+	S_ISUID = 0004000; // Set user id on execution
+	S_ISGID = 0002000; // Set group id on execution
+	S_ISVTX = 0001000; // Directory restrcted delete
+)
+
+proc S_ISLNK (m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFLNK; }
+proc S_ISREG (m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFREG; }
+proc S_ISDIR (m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFDIR; }
+proc S_ISCHR (m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFCHR; }
+proc S_ISBLK (m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFBLK; }
+proc S_ISFIFO(m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFIFO; }
+proc S_ISSOCK(m: u32) -> bool #inline  {return (m & S_IFMT) == S_IFSOCK;}
+
+const (
+	R_OK = 4; // Test for read permission
+	W_OK = 2; // Test for write permission
+	X_OK = 1; // Test for execute permission
+	F_OK = 0; // Test for file existance
+)
+
+foreign libc {
+	proc unix_open  (path: ^u8, mode: int) -> Handle                               #link_name "open";
+	proc unix_close (handle: Handle)                                               #link_name "close";
+	proc unix_read  (handle: Handle, buffer: rawptr, count: int) -> AddressSize    #link_name "read";
+	proc unix_write (handle: Handle, buffer: rawptr, count: int) -> AddressSize    #link_name "write";
+	proc unix_lseek (fs: Handle, offset: AddressSize, whence: int) -> AddressSize  #link_name "lseek";
+	proc unix_gettid() -> u64                                                      #link_name "gettid";
+	proc unix_stat  (path: ^u8, stat: ^Stat) -> int                                #link_name "stat";
+	proc unix_access(path: ^u8, mask: int) -> int                                  #link_name "access";
+
+	proc unix_malloc (size: int) -> rawptr                                         #link_name "malloc";
+	proc unix_free   (ptr: rawptr)                                                 #link_name "free";
+	proc unix_realloc(ptr: rawptr, size: int) -> rawptr                            #link_name "realloc";
+	proc unix_getenv (^u8) -> ^u8                                                  #link_name "getenv";
+
+	proc unix_exit(status: int)                                                    #link_name "exit";
+}
+
+foreign dl {
+	proc unix_dlopen (filename: ^u8, flags: int) -> rawptr                         #link_name "dlopen";
+	proc unix_dlsym  (handle: rawptr, symbol: ^u8) ->  (proc() #cc_c)              #link_name "dlsym";
+	proc unix_dlclose(handle: rawptr) -> int                                       #link_name "dlclose";
+	proc unix_dlerror() -> ^u8                                                     #link_name "dlerror";
+}
+
+// TODO(zangent): Change this to just `open` when Bill fixes overloading.
+proc open_simple(path: string, mode: int) -> (Handle, Errno) {
+
+	var cstr = strings.new_c_string(path);
+	var handle = unix_open(cstr, mode);
+	free(cstr);
+	if(handle == -1) {
+		return 0, 1;
+	}
+	return handle, 0;
+}
+
+// NOTE(zangent): This is here for compatability reasons. Should this be here?
+proc open(path: string, mode: int = O_RDONLY, perm: u32 = 0) -> (Handle, Errno) {
+	return open_simple(path, mode);
+}
+
+proc close(fd: Handle) {
 	unix_close(fd);
 }
 
-write :: proc(fd: Handle, data: []byte) -> (int, Errno) {
-	return unix_write(fd, data.data, data.count), 0;
+proc write(fd: Handle, data: []u8) -> (AddressSize, Errno) {
+	assert(fd != -1);
+
+	var bytes_written = unix_write(fd, &data[0], len(data));
+	if(bytes_written == -1) {
+		return 0, 1;
+	}
+	return bytes_written, 0;
 }
 
-read :: proc(fd: Handle, data: []byte) -> (int, Errno) {
-	return unix_read(fd, data.data, data.count), 0;
+proc read(fd: Handle, data: []u8) -> (AddressSize, Errno) {
+	assert(fd != -1);
+
+	var bytes_read = unix_read(fd, &data[0], len(data));
+	if(bytes_read == -1) {
+		return 0, 1;
+	}
+	return bytes_read, 0;
 }
 
-seek :: proc(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
-	/*
-	using win32;
-	w: u32;
-	match whence {
-	case 0: w = FILE_BEGIN;
-	case 1: w = FILE_CURRENT;
-	case 2: w = FILE_END;
-	}
-	hi := cast(i32)(offset>>32);
-	lo := cast(i32)(offset);
-	ft := GetFileType(cast(HANDLE)fd);
-	if ft == FILE_TYPE_PIPE {
-		return 0, ERROR_FILE_IS_PIPE;
-	}
-	dw_ptr := SetFilePointer(cast(HANDLE)fd, lo, ^hi, w);
-	if dw_ptr == INVALID_SET_FILE_POINTER {
-		err := GetLastError();
-		return 0, cast(Errno)err;
-	}
-	return cast(i64)hi<<32 + cast(i64)dw_ptr, ERROR_NONE;
+proc seek(fd: Handle, offset: AddressSize, whence: int) -> (AddressSize, Errno) {
+	assert(fd != -1);
 
-	*/
-	return 0, 0;
+	var final_offset = unix_lseek(fd, offset, whence);
+	if(final_offset == -1) {
+		return 0, 1;
+	}
+	return final_offset, 0;
 }
 
+proc file_size(fd: Handle) -> (i64, Errno) {
+	var prev, _ = seek(fd, 0, SEEK_CUR);
+	var size, err = seek(fd, 0, SEEK_END);
+	seek(fd, prev, SEEK_SET);
+	return size, err;
+}
+
+
 
 // NOTE(bill): Uses startup to initialize it
-stdin:  Handle = 0; // get_std_handle(win32.STD_INPUT_HANDLE);
-stdout: Handle = 1; // get_std_handle(win32.STD_OUTPUT_HANDLE);
-stderr: Handle = 2; // get_std_handle(win32.STD_ERROR_HANDLE);
-
-
-/*
-get_std_handle :: proc(h: int) -> Handle {
-	fd := win32.GetStdHandle(cast(i32)h);
-	win32.SetHandleInformation(fd, win32.HANDLE_FLAG_INHERIT, 0);
-	return cast(Handle)fd;
-}
-
-
-
-
-
-
-last_write_time :: proc(fd: Handle) -> File_Time {
-	file_info: win32.BY_HANDLE_FILE_INFORMATION;
-	win32.GetFileInformationByHandle(cast(win32.HANDLE)fd, ^file_info);
-	lo := cast(File_Time)file_info.last_write_time.lo;
-	hi := cast(File_Time)file_info.last_write_time.hi;
-	return lo | hi << 32;
-}
-
-last_write_time_by_name :: proc(name: string) -> File_Time {
-	last_write_time: win32.FILETIME;
-	data: win32.FILE_ATTRIBUTE_DATA;
-	buf: [1024]byte;
-
-	assert(buf.count > name.count);
-
-	copy(buf[:], cast([]byte)name);
-
-	if win32.GetFileAttributesExA(^buf[0], win32.GetFileExInfoStandard, ^data) != 0 {
-		last_write_time = data.last_write_time;
-	}
-
-	l := cast(File_Time)last_write_time.lo;
-	h := cast(File_Time)last_write_time.hi;
-	return l | h << 32;
-}
-
-
-
-
-
-read_entire_file :: proc(name: string) -> ([]byte, bool) {
-	buf: [300]byte;
-	copy(buf[:], cast([]byte)name);
-
-	fd, err := open(name, O_RDONLY, 0);
-	if err != ERROR_NONE {
-		return nil, false;
-	}
-	defer close(fd);
-
-	length: i64;
-	file_size_ok := win32.GetFileSizeEx(cast(win32.HANDLE)fd, ^length) != 0;
-	if !file_size_ok {
-		return nil, false;
-	}
-
-	data := new_slice(u8, length);
-	if data.data == nil {
-		return nil, false;
-	}
-
-	single_read_length: i32;
-	total_read: i64;
-
-	for total_read < length {
-		remaining := length - total_read;
-		to_read: u32;
-		MAX :: 1<<32-1;
-		if remaining <= MAX {
-			to_read = cast(u32)remaining;
-		} else {
-			to_read = MAX;
-		}
-
-		win32.ReadFile(cast(win32.HANDLE)fd, ^data[total_read], to_read, ^single_read_length, nil);
-		if single_read_length <= 0 {
-			free(data);
-			return nil, false;
-		}
-
-		total_read += cast(i64)single_read_length;
-	}
-
-	return data, true;
-}
-
-
+var (
+	stdin:  Handle = 0; // get_std_handle(win32.STD_INPUT_HANDLE);
+	stdout: Handle = 1; // get_std_handle(win32.STD_OUTPUT_HANDLE);
+	stderr: Handle = 2; // get_std_handle(win32.STD_ERROR_HANDLE);
+)
+/* TODO(zangent): Implement these!
+proc last_write_time(fd: Handle) -> FileTime {}
+proc last_write_time_by_name(name: string) -> FileTime {}
 */
 
-heap_alloc :: proc(size: int) -> rawptr {
+proc stat(path: string) -> (Stat, bool) #inline {
+	var s: Stat;
+	var cstr = strings.new_c_string(path);
+	defer free(cstr);
+	var ret_int = unix_stat(cstr, &s);
+	return s, ret_int==0;
+}
+
+proc access(path: string, mask: int) -> bool #inline {
+	var cstr = strings.new_c_string(path);
+	defer free(cstr);
+	return unix_access(cstr, mask) == 0;
+}
+
+proc heap_alloc(size: int) -> rawptr #inline {
 	assert(size > 0);
 	return unix_malloc(size);
 }
-heap_resize :: proc(ptr: rawptr, new_size: int) -> rawptr {
+proc heap_resize(ptr: rawptr, new_size: int) -> rawptr #inline {
 	return unix_realloc(ptr, new_size);
 }
-heap_free :: proc(ptr: rawptr) {
+proc heap_free(ptr: rawptr) #inline {
 	unix_free(ptr);
 }
 
+proc getenv(name: string) -> (string, bool) {
+	var path_str = strings.new_c_string(name);
+	var cstr: ^u8 = unix_getenv(path_str);
+	free(path_str);
+	if(cstr == nil) {
+		return "", false;
+	}
+	return strings.to_odin_string(cstr), true;
+}
 
-exit :: proc(code: int) {
+proc exit(code: int) #inline {
 	unix_exit(code);
 }
 
 
-current_thread_id :: proc() -> int {
+proc current_thread_id() -> int {
 	// return cast(int) unix_gettid();
 	return 0;
 }
 
-
-
+proc dlopen(filename: string, flags: int) -> rawptr #inline {
+	var cstr = strings.new_c_string(filename);
+	var handle = unix_dlopen(cstr, flags);
+	free(cstr);
+	return handle;
+}
+proc dlsym(handle: rawptr, symbol: string) -> (proc() #cc_c) #inline {
+	assert(handle != nil);
+	var cstr = strings.new_c_string(symbol);
+	var proc_handle = unix_dlsym(handle, cstr);
+	free(cstr);
+	return proc_handle;
+}
+proc dlclose(handle: rawptr) -> bool #inline {
+	assert(handle != nil);
+	return unix_dlclose(handle) == 0;
+}
+proc dlerror() -> string {
+	return strings.to_odin_string(unix_dlerror());
+}

core/raw.odin

@@ -0,0 +1,29 @@
+type (
+	Any struct #ordered {
+		data:      rawptr,
+		type_info: ^TypeInfo,
+	};
+
+	String struct #ordered {
+		data: ^u8,
+		len:  int,
+	};
+
+	Slice struct #ordered {
+		data: rawptr,
+		len:  int,
+		cap:  int,
+	};
+
+	DynamicArray struct #ordered {
+		data:      rawptr,
+		len:       int,
+		cap:       int,
+		allocator: Allocator,
+	};
+
+	DynamicMap struct #ordered {
+		hashes:  [dynamic]int,
+		entries: DynamicArray,
+	};
+)

core/strconv.odin

@@ -1,14 +1,13 @@
-#import . "decimal.odin";
-#import "math.odin";
+import . "decimal.odin";
 
-Int_Flag :: enum {
-	PREFIX = 1<<0,
-	PLUS   = 1<<1,
-	SPACE  = 1<<2,
+type IntFlag enum {
+	Prefix = 1<<0,
+	Plus   = 1<<1,
+	Space  = 1<<2,
 }
 
 
-parse_bool :: proc(s: string) -> (result: bool, ok: bool) {
+proc parse_bool(s: string) -> (result: bool, ok: bool) {
 	match s {
 	case "1", "t", "T", "true", "TRUE", "True":
 		return true, true;
@@ -18,65 +17,239 @@ parse_bool :: proc(s: string) -> (result: bool, ok: bool) {
 	return false, false;
 }
 
-append_bool :: proc(buf: []byte, b: bool) -> string {
-	s := b ? "true" : "false";
-	append(buf, ..cast([]byte)s);
-	return cast(string)buf;
+proc _digit_value(r: rune) -> int {
+	var ri = int(r);
+	var v: int = 16;
+	match r {
+	case '0'..'9': v = ri-'0';
+	case 'a'..'z': v = ri-'a'+10;
+	case 'A'..'Z': v = ri-'A'+10;
+	}
+	return v;
 }
 
-append_uint :: proc(buf: []byte, u: u64, base: int) -> string {
-	return append_bits(buf, u, base, false, 8*size_of(uint), digits, 0);
-}
-append_int :: proc(buf: []byte, i: i64, base: int) -> string {
-	return append_bits(buf, cast(u64)i, base, true, 8*size_of(int), digits, 0);
-}
-itoa :: proc(buf: []byte, i: int) -> string { return append_int(buf, cast(i64)i, 10); }
+proc parse_i128(s: string) -> i128 {
+	var neg = false;
+	if len(s) > 1 {
+		match s[0] {
+		case '-':
+			neg = true;
+			s = s[1..];
+		case '+':
+			s = s[1..];
+		}
+	}
 
-append_float :: proc(buf: []byte, f: f64, fmt: byte, prec, bit_size: int) -> string {
-	return cast(string)generic_ftoa(buf, f, fmt, prec, bit_size);
+
+	var base: i128 = 10;
+	if len(s) > 2 && s[0] == '0' {
+		match s[1] {
+		case 'b': base =  2;  s = s[2..];
+		case 'o': base =  8;  s = s[2..];
+		case 'd': base = 10;  s = s[2..];
+		case 'z': base = 12;  s = s[2..];
+		case 'x': base = 16;  s = s[2..];
+		}
+	}
+
+
+	var value: i128;
+	for r in s {
+		if r == '_' {
+			continue;
+		}
+
+		var v = i128(_digit_value(r));
+		if v >= base {
+			break;
+		}
+		value *= base;
+		value += v;
+	}
+
+	return neg ? -value : value;
+}
+
+proc parse_u128(s: string) -> u128 {
+	var neg = false;
+	if len(s) > 1 && s[0] == '+' {
+		s = s[1..];
+	}
+
+
+	var base = u128(10);
+	if len(s) > 2 && s[0] == '0' {
+		match s[1] {
+		case 'b': base =  2;  s = s[2..];
+		case 'o': base =  8;  s = s[2..];
+		case 'd': base = 10;  s = s[2..];
+		case 'z': base = 12;  s = s[2..];
+		case 'x': base = 16;  s = s[2..];
+		}
+	}
+
+
+	var value: u128;
+	for r in s {
+		if r == '_' {
+			continue;
+		}
+
+		var v = u128(_digit_value(r));
+		if v >= base {
+			break;
+		}
+		value *= base;
+		value += u128(v);
+	}
+
+	return neg ? -value : value;
+}
+
+
+proc parse_int(s: string) -> int {
+	return int(parse_i128(s));
+}
+proc parse_uint(s: string, base: int) -> uint {
+	return uint(parse_u128(s));
+}
+
+proc parse_f64(s: string) -> f64 {
+	var i = 0;
+
+	var sign: f64 = 1;
+	match s[i] {
+	case '-': i++; sign = -1;
+	case '+': i++;
+	}
+
+	var value: f64 = 0;
+	for ; i < len(s); i++ {
+		var r = rune(s[i]);
+		if r == '_' {
+			continue;
+		}
+		var v = _digit_value(r);
+		if v >= 10 {
+			break;
+		}
+		value *= 10;
+		value += f64(v);
+	}
+
+	if s[i] == '.' {
+		var pow10: f64 = 10;
+		i++;
+
+		for ; i < len(s); i++ {
+			var r = rune(s[i]);
+			if r == '_' {
+				continue;
+			}
+			var v = _digit_value(r);
+			if v >= 10 {
+				break;
+			}
+			value += f64(v)/pow10;
+			pow10 *= 10;
+		}
+	}
+
+	var frac = false;
+	var scale: f64 = 1;
+
+	if s[i] == 'e' || s[i] == 'E' {
+		i++;
+
+		match s[i] {
+		case '-': i++; frac = true;
+		case '+': i++;
+		}
+
+		var exp: u32 = 0;
+		for ; i < len(s); i++ {
+			var r = rune(s[i]);
+			if r == '_' {
+				continue;
+			}
+			var d = u32(_digit_value(r));
+			if d >= 10 {
+				break;
+			}
+			exp = exp * 10 + d;
+		}
+		if exp > 308 { exp = 308; }
+
+		for exp >= 50 { scale *= 1e50; exp -= 50; }
+		for exp >=  8 { scale *=  1e8; exp -=  8; }
+		for exp >   0 { scale *=   10; exp -=  1; }
+	}
+
+	return sign * (frac ? (value/scale) : (value*scale));
+}
+
+
+proc append_bool(buf: []u8, b: bool) -> string {
+	var s = b ? "true" : "false";
+	append(buf, ..[]u8(s));
+	return string(buf);
+}
+
+proc append_uint(buf: []u8, u: u64, base: int) -> string {
+	return append_bits(buf, u128(u), base, false, 8*size_of(uint), digits, 0);
+}
+proc append_int(buf: []u8, i: i64, base: int) -> string {
+	return append_bits(buf, u128(i), base, true, 8*size_of(int), digits, 0);
+}
+proc itoa(buf: []u8, i: int) -> string { return append_int(buf, i64(i), 10); }
+
+proc append_float(buf: []u8, f: f64, fmt: u8, prec, bit_size: int) -> string {
+	return string(generic_ftoa(buf, f, fmt, prec, bit_size));
 }
 
 
 
 
-Decimal_Slice :: struct {
-	digits:        []byte,
+type DecimalSlice struct {
+	digits:        []u8,
 	count:         int,
 	decimal_point: int,
 	neg:           bool,
 }
 
-Float_Info :: struct {
+type Float_Info struct {
 	mantbits: uint,
 	expbits:  uint,
 	bias:     int,
 }
 
-f32_info := Float_Info{23, 8, -127};
-f64_info := Float_Info{52, 11, -1023};
+var (
+	_f16_info = Float_Info{10, 5,   -15};
+	_f32_info = Float_Info{23, 8,  -127};
+	_f64_info = Float_Info{52, 11, -1023};
+)
 
-
-generic_ftoa :: proc(buf: []byte, val: f64, fmt: byte, prec, bit_size: int) -> []byte {
-	bits: u64;
-	flt: ^Float_Info;
+proc generic_ftoa(buf: []u8, val: f64, fmt: u8, prec, bit_size: int) -> []u8 {
+	var bits: u64;
+	var flt: ^Float_Info;
 	match bit_size {
 	case 32:
-		bits = cast(u64)transmute(u32)cast(f32)val;
-		flt = ^f32_info;
+		bits = u64(transmute(u32, f32(val)));
+		flt = &_f32_info;
 	case 64:
-		bits = transmute(u64)val;
-		flt = ^f64_info;
-	default:
+		bits = transmute(u64, val);
+		flt = &_f64_info;
+	case:
 		panic("strconv: invalid bit_size");
 	}
 
-	neg := bits>>(flt.expbits+flt.mantbits) != 0;
-	exp := cast(int)(bits>>flt.mantbits) & (1<<flt.expbits - 1);
-	mant := bits & (cast(u64)1 << flt.mantbits - 1);
+	var neg = bits>>(flt.expbits+flt.mantbits) != 0;
+	var exp = int(bits>>flt.mantbits) & (1<<flt.expbits - 1);
+	var mant = bits & (u64(1) << flt.mantbits - 1);
 
 	match exp {
 	case 1<<flt.expbits - 1:
-		s: string;
+		var s: string;
 		if mant != 0 {
 			s = "NaN";
 		} else if neg {
@@ -84,27 +257,27 @@ generic_ftoa :: proc(buf: []byte, val: f64, fmt: byte, prec, bit_size: int) -> [
 		} else {
 			s = "+Inf";
 		}
-		append(buf, ..cast([]byte)s);
+		append(buf, ..[]u8(s));
 		return buf;
 
 	case 0: // denormalized
 		exp++;
 
-	default:
-		mant |= cast(u64)1 << flt.mantbits;
+	case:
+		mant |= u64(1) << flt.mantbits;
 	}
 
 	exp += flt.bias;
 
-	d_: Decimal;
-	d := ^d_;
+	var d_: Decimal;
+	var d = &d_;
 	assign(d, mant);
-	shift(d, exp - cast(int)flt.mantbits);
-	digs: Decimal_Slice;
-	shortest := prec < 0;
+	shift(d, exp - int(flt.mantbits));
+	var digs: DecimalSlice;
+	var shortest = prec < 0;
 	if shortest {
 		round_shortest(d, mant, exp, flt);
-		digs = Decimal_Slice{digits = d.digits[..], count = d.count, decimal_point = d.decimal_point};
+		digs = DecimalSlice{digits = d.digits[..], count = d.count, decimal_point = d.decimal_point};
 		match fmt {
 		case 'e', 'E': prec = digs.count-1;
 		case 'f', 'F': prec = max(digs.count-digs.decimal_point, 0);
@@ -121,60 +294,43 @@ generic_ftoa :: proc(buf: []byte, val: f64, fmt: byte, prec, bit_size: int) -> [
 			round(d, prec);
 		}
 
-		digs = Decimal_Slice{digits = d.digits[..], count = d.count, decimal_point = d.decimal_point};
+		digs = DecimalSlice{digits = d.digits[..], count = d.count, decimal_point = d.decimal_point};
 	}
 	return format_digits(buf, shortest, neg, digs, prec, fmt);
 }
 
 
 
-format_digits :: proc(buf: []byte, shortest: bool, neg: bool, digs: Decimal_Slice, prec: int, fmt: byte) -> []byte {
+proc format_digits(buf: []u8, shortest: bool, neg: bool, digs: DecimalSlice, prec: int, fmt: u8) -> []u8 {
 	match fmt {
 	case 'f', 'F':
-		add_bytes :: proc(dst: ^[]byte, w: ^int, bytes: ..byte) {
-			for b in bytes {
-				if dst.capacity <= w^ {
-					break;
-				}
-				dst.count++;
-				dst[w^] = b;
-				w^++;
-			}
-		}
-
-		dst := buf[..];
-		w := 0;
-		if neg {
-			add_bytes(^dst, ^w, '-');
-		} else {
-			add_bytes(^dst, ^w, '+');
-		}
+		append(buf, neg ? '-' : '+');
 
 		// integer, padded with zeros when needed
 		if digs.decimal_point > 0 {
-			m := min(digs.count, digs.decimal_point);
-			add_bytes(^dst, ^w, ..digs.digits[..m]);
+			var m = min(digs.count, digs.decimal_point);
+			append(buf, ..digs.digits[0..<m]);
 			for ; m < digs.decimal_point; m++ {
-				add_bytes(^dst, ^w, '0');
+				append(buf, '0');
 			}
 		} else {
-			add_bytes(^dst, ^w, '0');
+			append(buf, '0');
 		}
 
 
 		// fractional part
 		if prec > 0 {
-			add_bytes(^dst, ^w, '.');
-			for i in 0..prec {
-				c: byte = '0';
-				if j := digs.decimal_point + i; 0 <= j && j < digs.count {
+			append(buf, '.');
+			for i in 0..<prec {
+				var c: u8 = '0';
+				if var j = digs.decimal_point + i; 0 <= j && j < digs.count {
 					c = digs.digits[j];
 				}
-				add_bytes(^dst, ^w, c);
+				append(buf, c);
 			}
 		}
 
-		return buf[..w];
+		return buf;
 
 	case 'e', 'E':
 		panic("strconv: e/E float printing is not yet supported");
@@ -185,14 +341,14 @@ format_digits :: proc(buf: []byte, shortest: bool, neg: bool, digs: Decimal_Slic
 		return buf; // TODO
 	}
 
-	c: [2]byte;
+	var c: [2]u8;
 	c[0] = '%';
 	c[1] = fmt;
 	append(buf, ..c[..]);
 	return buf;
 }
 
-round_shortest :: proc(d: ^Decimal, mant: u64, exp: int, flt: ^Float_Info) {
+proc round_shortest(d: ^Decimal, mant: u64, exp: int, flt: ^Float_Info) {
 	if mant == 0 { // If mantissa is zero, the number is zero
 		d.count = 0;
 		return;
@@ -204,18 +360,18 @@ round_shortest :: proc(d: ^Decimal, mant: u64, exp: int, flt: ^Float_Info) {
 		log(2) >~ 0.332
 		332*(dp-nd) >= 100*(exp-mantbits)
 	 */
-	minexp := flt.bias+1;
-	if exp > minexp && 332*(d.decimal_point-d.count) >= 100*(exp - cast(int)flt.mantbits) {
+	var minexp = flt.bias+1;
+	if exp > minexp && 332*(d.decimal_point-d.count) >= 100*(exp - int(flt.mantbits)) {
 		// Number is already its shortest
 		return;
 	}
 
-	upper_: Decimal; upper: = ^upper_;
+	var upper_: Decimal; var upper = &upper_;
 	assign(upper, 2*mant - 1);
-	shift(upper, exp - cast(int)flt.mantbits - 1);
+	shift(upper, exp - int(flt.mantbits) - 1);
 
-	mantlo: u64;
-	explo:  int;
+	var mantlo: u64;
+	var explo:  int;
 	if mant > 1<<flt.mantbits || exp == minexp {
 		mantlo = mant-1;
 		explo = exp;
@@ -223,25 +379,25 @@ round_shortest :: proc(d: ^Decimal, mant: u64, exp: int, flt: ^Float_Info) {
 		mantlo = 2*mant - 1;
 		explo = exp-1;
 	}
-	lower_: Decimal; lower: = ^lower_;
+	var lower_: Decimal; var lower = &lower_;
 	assign(lower, 2*mantlo + 1);
-	shift(lower, explo - cast(int)flt.mantbits - 1);
+	shift(lower, explo - int(flt.mantbits) - 1);
 
-	inclusive := mant%2 == 0;
+	var inclusive = mant%2 == 0;
 
-	for i in 0..d.count {
-		l: byte = '0'; // lower digit
+	for i in 0..<d.count {
+		var l: u8 = '0'; // lower digit
 		if i < lower.count {
 			l = lower.digits[i];
 		}
-		m := d.digits[i];   // middle digit
-		u: byte = '0'; // upper digit
+		var m = d.digits[i];   // middle digit
+		var u: u8 = '0'; // upper digit
 		if i < upper.count {
 			u = upper.digits[i];
 		}
 
-		ok_round_down := l != m || inclusive && i+1 == lower.count;
-		ok_round_up   := m != u && (inclusive || m+1 < u || i+1 < upper.count);
+		var ok_round_down = l != m || inclusive && i+1 == lower.count;
+		var ok_round_up   = m != u && (inclusive || m+1 < u || i+1 < upper.count);
 
 		if (ok_round_down && ok_round_up) {
 			round(d, i+1);
@@ -259,109 +415,86 @@ round_shortest :: proc(d: ^Decimal, mant: u64, exp: int, flt: ^Float_Info) {
 
 }
 
-MAX_BASE :: 32;
-immutable digits := "0123456789abcdefghijklmnopqrstuvwxyz";
+const MAX_BASE = 32;
+var digits = "0123456789abcdefghijklmnopqrstuvwxyz";
 
 
-is_integer_negative :: proc(u: u64, is_signed: bool, bit_size: int) -> (unsigned: u64, neg: bool) {
-	neg := false;
+proc is_integer_negative(u: u128, is_signed: bool, bit_size: int) -> (unsigned: u128, neg: bool) {
+	var neg = false;
 	if is_signed {
 		match bit_size {
 		case 8:
-			i := cast(i8)u;
+			var i = i8(u);
 			neg = i < 0;
 			if neg { i = -i; }
-			u = cast(u64)i;
+			u = u128(i);
 		case 16:
-			i := cast(i16)u;
+			var i = i16(u);
 			neg = i < 0;
 			if neg { i = -i; }
-			u = cast(u64)i;
+			u = u128(i);
 		case 32:
-			i := cast(i32)u;
+			var i = i32(u);
 			neg = i < 0;
 			if neg { i = -i; }
-			u = cast(u64)i;
+			u = u128(i);
 		case 64:
-			i := cast(i64)u;
+			var i = i64(u);
 			neg = i < 0;
 			if neg { i = -i; }
-			u = cast(u64)i;
-		default:
+			u = u128(i);
+		case 128:
+			var i = i128(u);
+			neg = i < 0;
+			if neg { i = -i; }
+			u = u128(i);
+		case:
 			panic("is_integer_negative: Unknown integer size");
 		}
 	}
 	return u, neg;
 }
 
-
-append_bits :: proc(buf: []byte, u: u64, base: int, is_signed: bool, bit_size: int, digits: string, flags: Int_Flag) -> string {
-	is_pow2 :: proc(x: i64) -> bool {
-		if (x <= 0) {
-			return false;
-		}
-		return x&(x-1) == 0;
-	}
-
+proc append_bits(buf: []u8, u: u128, base: int, is_signed: bool, bit_size: int, digits: string, flags: IntFlag) -> string {
 	if base < 2 || base > MAX_BASE {
 		panic("strconv: illegal base passed to append_bits");
 	}
 
-	a: [65]byte;
-	i := a.count;
-
-	neg: bool;
+	var neg: bool;
+	var a: [129]u8;
+	var i = len(a);
 	u, neg = is_integer_negative(u, is_signed, bit_size);
-
-	if is_pow2(cast(i64)base) {
-		b := cast(u64)base;
-		m := cast(uint)b - 1;
-		for u >= b {
-			i--;
-			a[i] = digits[cast(uint)u & m];
-			u >>= b;
-		}
-		i--;
-		a[i] = digits[cast(uint)u];
-	} else {
-		b := cast(u64)base;
-		for u >= b {
-			i--;
-			q := u / b;
-			a[i] = digits[cast(uint)(u-q*b)];
-			u = q;
-		}
-
-		i--;
-		a[i] = digits[cast(uint)u];
+	var b = u128(base);
+	for u >= b {
+		i--; a[i] = digits[uint(u % b)];
+		u /= b;
 	}
+	i--; a[i] = digits[uint(u % b)];
 
-	if flags&Int_Flag.PREFIX != 0 {
-		ok := true;
+	if flags&IntFlag.Prefix != 0 {
+		var ok = true;
 		match base {
-		case 2:  i--; a[i] = 'b';
-		case 8:  i--; a[i] = 'o';
+		case  2: i--; a[i] = 'b';
+		case  8: i--; a[i] = 'o';
 		case 10: i--; a[i] = 'd';
 		case 12: i--; a[i] = 'z';
 		case 16: i--; a[i] = 'x';
-		default: ok = false;
+		case: ok = false;
 		}
 		if ok {
-			i--;
-			a[i] = '0';
+			i--; a[i] = '0';
 		}
 	}
 
 	if neg {
 		i--; a[i] = '-';
-	} else if flags&Int_Flag.PLUS != 0 {
+	} else if flags&IntFlag.Plus != 0 {
 		i--; a[i] = '+';
-	} else if flags&Int_Flag.SPACE != 0 {
+	} else if flags&IntFlag.Space != 0 {
 		i--; a[i] = ' ';
 	}
 
-
 	append(buf, ..a[i..]);
-	return cast(string)buf;
+	return string(buf);
 }
 

core/strings.odin

@@ -1,15 +1,21 @@
-new_c_string :: proc(s: string) -> ^byte {
-	c := new_slice(byte, s.count+1);
-	copy(c, cast([]byte)s);
-	c[s.count] = 0;
-	return c.data;
+proc new_string(s: string) -> string {
+	var c = make([]u8, len(s)+1);
+	copy(c, []u8(s));
+	c[len(s)] = 0;
+	return string(c[0..<len(s)]);
 }
 
-to_odin_string :: proc(c: ^byte) -> string {
-	s: string;
-	s.data = c;
-	for (c+s.count)^ != 0 {
-		s.count++;
-	}
-	return s;
+proc new_c_string(s: string) -> ^u8 {
+	var c = make([]u8, len(s)+1);
+	copy(c, []u8(s));
+	c[len(s)] = 0;
+	return &c[0];
+}
+
+proc to_odin_string(c: ^u8) -> string {
+	var len = 0;
+	for (c+len)^ != 0 {
+		len++;
+	}
+	return string(slice_ptr(c, len));
 }

core/sync.odin

@@ -1,91 +1,4 @@
-#import win32 "sys/windows.odin" when ODIN_OS == "windows";
-#import "atomic.odin";
-
-Semaphore :: struct {
-	_handle: win32.Handle,
-}
-
-Mutex :: struct {
-	_semaphore: Semaphore,
-	_counter:   i32,
-	_owner:     i32,
-	_recursion: i32,
-}
-
-current_thread_id :: proc() -> i32 {
-	return cast(i32)win32.GetCurrentThreadId();
-}
-
-semaphore_init :: proc(s: ^Semaphore) {
-	s._handle = win32.CreateSemaphoreA(nil, 0, 1<<31-1, nil);
-}
-
-semaphore_destroy :: proc(s: ^Semaphore) {
-	win32.CloseHandle(s._handle);
-}
-
-semaphore_post :: proc(s: ^Semaphore, count: int) {
-	win32.ReleaseSemaphore(s._handle, cast(i32)count, nil);
-}
-
-semaphore_release :: proc(s: ^Semaphore) #inline { semaphore_post(s, 1); }
-
-semaphore_wait :: proc(s: ^Semaphore) {
-	win32.WaitForSingleObject(s._handle, win32.INFINITE);
-}
-
-
-mutex_init :: proc(m: ^Mutex) {
-	atomic.store(^m._counter, 0);
-	atomic.store(^m._owner, current_thread_id());
-	semaphore_init(^m._semaphore);
-	m._recursion = 0;
-}
-mutex_destroy :: proc(m: ^Mutex) {
-	semaphore_destroy(^m._semaphore);
-}
-mutex_lock :: proc(m: ^Mutex) {
-	thread_id := current_thread_id();
-	if atomic.fetch_add(^m._counter, 1) > 0 {
-		if thread_id != atomic.load(^m._owner) {
-			semaphore_wait(^m._semaphore);
-		}
-	}
-	atomic.store(^m._owner, thread_id);
-	m._recursion++;
-}
-mutex_try_lock :: proc(m: ^Mutex) -> bool {
-	thread_id := current_thread_id();
-	if atomic.load(^m._owner) == thread_id {
-		atomic.fetch_add(^m._counter, 1);
-	} else {
-		expected: i32 = 0;
-		if atomic.load(^m._counter) != 0 {
-			return false;
-		}
-		if atomic.compare_exchange(^m._counter, expected, 1) == 0 {
-			return false;
-		}
-		atomic.store(^m._owner, thread_id);
-	}
-	m._recursion++;
-	return true;
-}
-mutex_unlock :: proc(m: ^Mutex) {
-	recursion: i32;
-	thread_id := current_thread_id();
-	assert(thread_id == atomic.load(^m._owner));
-
-	m._recursion--;
-	recursion = m._recursion;
-	if recursion == 0 {
-		atomic.store(^m._owner, thread_id);
-	}
-
-	if atomic.fetch_add(^m._counter, -1) > 1 {
-		if recursion == 0 {
-			semaphore_release(^m._semaphore);
-		}
-	}
-}
-
+import_load (
+	"sync_windows.odin" when ODIN_OS == "windows";
+	"sync_linux.odin"   when ODIN_OS == "linux";
+)

core/sync_linux.odin

@@ -0,0 +1,95 @@
+import (
+	"atomics.odin";
+	"os.odin";
+)
+
+type Semaphore struct {
+	// _handle: win32.Handle,
+}
+
+type Mutex struct {
+	_semaphore: Semaphore,
+	_counter:   i32,
+	_owner:     i32,
+	_recursion: i32,
+}
+
+proc current_thread_id() -> i32 {
+	return i32(os.current_thread_id());
+}
+
+proc semaphore_init(s: ^Semaphore) {
+	// s._handle = win32.CreateSemaphoreA(nil, 0, 1<<31-1, nil);
+}
+
+proc semaphore_destroy(s: ^Semaphore) {
+	// win32.CloseHandle(s._handle);
+}
+
+proc semaphore_post(s: ^Semaphore, count: int) {
+	// win32.ReleaseSemaphore(s._handle, cast(i32)count, nil);
+}
+
+proc semaphore_release(s: ^Semaphore) #inline {
+	semaphore_post(s, 1);
+}
+
+proc semaphore_wait(s: ^Semaphore) {
+	// win32.WaitForSingleObject(s._handle, win32.INFINITE);
+}
+
+
+proc mutex_init(m: ^Mutex) {
+	atomics.store(&m._counter, 0);
+	atomics.store(&m._owner, current_thread_id());
+	semaphore_init(&m._semaphore);
+	m._recursion = 0;
+}
+proc mutex_destroy(m: ^Mutex) {
+	semaphore_destroy(&m._semaphore);
+}
+proc mutex_lock(m: ^Mutex) {
+	var thread_id = current_thread_id();
+	if atomics.fetch_add(&m._counter, 1) > 0 {
+		if thread_id != atomics.load(&m._owner) {
+			semaphore_wait(&m._semaphore);
+		}
+	}
+	atomics.store(&m._owner, thread_id);
+	m._recursion++;
+}
+proc mutex_try_lock(m: ^Mutex) -> bool {
+	var thread_id = current_thread_id();
+	if atomics.load(&m._owner) == thread_id {
+		atomics.fetch_add(&m._counter, 1);
+	} else {
+		var expected: i32 = 0;
+		if atomics.load(&m._counter) != 0 {
+			return false;
+		}
+		if atomics.compare_exchange(&m._counter, expected, 1) == 0 {
+			return false;
+		}
+		atomics.store(&m._owner, thread_id);
+	}
+	m._recursion++;
+	return true;
+}
+proc mutex_unlock(m: ^Mutex) {
+	var recursion: i32;
+	var thread_id = current_thread_id();
+	assert(thread_id == atomics.load(&m._owner));
+
+	m._recursion--;
+	recursion = m._recursion;
+	if recursion == 0 {
+		atomics.store(&m._owner, thread_id);
+	}
+
+	if atomics.fetch_add(&m._counter, -1) > 1 {
+		if recursion == 0 {
+			semaphore_release(&m._semaphore);
+		}
+	}
+}
+

core/sync_windows.odin

@@ -0,0 +1,93 @@
+import (
+	win32 "sys/windows.odin" when ODIN_OS == "windows";
+	"atomics.odin";
+)
+
+type Semaphore struct {
+	_handle: win32.Handle,
+}
+
+type Mutex struct {
+	_semaphore: Semaphore,
+	_counter:   i32,
+	_owner:     i32,
+	_recursion: i32,
+}
+
+proc current_thread_id() -> i32 {
+	return i32(win32.get_current_thread_id());
+}
+
+proc semaphore_init(s: ^Semaphore) {
+	s._handle = win32.create_semaphore_a(nil, 0, 1<<31-1, nil);
+}
+
+proc semaphore_destroy(s: ^Semaphore) {
+	win32.close_handle(s._handle);
+}
+
+proc semaphore_post(s: ^Semaphore, count: int) {
+	win32.release_semaphore(s._handle, i32(count), nil);
+}
+
+proc semaphore_release(s: ^Semaphore) #inline { semaphore_post(s, 1); }
+
+proc semaphore_wait(s: ^Semaphore) {
+	win32.wait_for_single_object(s._handle, win32.INFINITE);
+}
+
+
+proc mutex_init(m: ^Mutex) {
+	atomics.store(&m._counter, 0);
+	atomics.store(&m._owner, current_thread_id());
+	semaphore_init(&m._semaphore);
+	m._recursion = 0;
+}
+proc mutex_destroy(m: ^Mutex) {
+	semaphore_destroy(&m._semaphore);
+}
+proc mutex_lock(m: ^Mutex) {
+	var thread_id = current_thread_id();
+	if atomics.fetch_add(&m._counter, 1) > 0 {
+		if thread_id != atomics.load(&m._owner) {
+			semaphore_wait(&m._semaphore);
+		}
+	}
+	atomics.store(&m._owner, thread_id);
+	m._recursion++;
+}
+proc mutex_try_lock(m: ^Mutex) -> bool {
+	var thread_id = current_thread_id();
+	if atomics.load(&m._owner) == thread_id {
+		atomics.fetch_add(&m._counter, 1);
+	} else {
+		var expected: i32 = 0;
+		if atomics.load(&m._counter) != 0 {
+			return false;
+		}
+		if atomics.compare_exchange(&m._counter, expected, 1) == 0 {
+			return false;
+		}
+		atomics.store(&m._owner, thread_id);
+	}
+	m._recursion++;
+	return true;
+}
+proc mutex_unlock(m: ^Mutex) {
+	var recursion: i32;
+	var thread_id = current_thread_id();
+	assert(thread_id == atomics.load(&m._owner));
+
+	m._recursion--;
+	recursion = m._recursion;
+	if recursion == 0 {
+		atomics.store(&m._owner, thread_id);
+	}
+
+	if atomics.fetch_add(&m._counter, -1) > 1 {
+		if recursion == 0 {
+			semaphore_release(&m._semaphore);
+		}
+	}
+}
+

core/sys/wgl.odin

@@ -1,72 +1,90 @@
-#foreign_system_library "opengl32.lib" when ODIN_OS == "windows";
-#import . "windows.odin";
+foreign_system_library "opengl32.lib" when ODIN_OS == "windows";
+import . "windows.odin";
 
-CONTEXT_MAJOR_VERSION_ARB          :: 0x2091;
-CONTEXT_MINOR_VERSION_ARB          :: 0x2092;
-CONTEXT_FLAGS_ARB                  :: 0x2094;
-CONTEXT_PROFILE_MASK_ARB           :: 0x9126;
-CONTEXT_FORWARD_COMPATIBLE_BIT_ARB :: 0x0002;
-CONTEXT_CORE_PROFILE_BIT_ARB       :: 0x00000001;
+const (
+	CONTEXT_MAJOR_VERSION_ARB          = 0x2091;
+	CONTEXT_MINOR_VERSION_ARB          = 0x2092;
+	CONTEXT_FLAGS_ARB                  = 0x2094;
+	CONTEXT_PROFILE_MASK_ARB           = 0x9126;
+	CONTEXT_FORWARD_COMPATIBLE_BIT_ARB = 0x0002;
+	CONTEXT_CORE_PROFILE_BIT_ARB       = 0x00000001;
+	CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB = 0x00000002;
+)
 
-Hglrc :: Handle;
-Color_Ref :: u32;
+type (
+	Hglrc    Handle;
+	ColorRef u32;
 
-Layer_Plane_Descriptor :: struct #ordered {
-	size:             u16,
-	version:          u16,
-	flags:            u32,
-	pixel_type:       byte,
-	color_bits:       byte,
-	red_bits:         byte,
-	red_shift:        byte,
-	green_bits:       byte,
-	green_shift:      byte,
-	blue_bits:        byte,
-	blue_shift:       byte,
-	alpha_bits:       byte,
-	alpha_shift:      byte,
-	accum_bits:       byte,
-	accum_red_bits:   byte,
-	accum_green_bits: byte,
-	accum_blue_bits:  byte,
-	accum_alpha_bits: byte,
-	depth_bits:       byte,
-	stencil_bits:     byte,
-	aux_buffers:      byte,
-	layer_type:       byte,
-	reserved:         byte,
-	transparent:      Color_Ref,
+	LayerPlaneDescriptor struct {
+		size:             u16,
+		version:          u16,
+		flags:            u32,
+		pixel_type:       u8,
+		color_bits:       u8,
+		red_bits:         u8,
+		red_shift:        u8,
+		green_bits:       u8,
+		green_shift:      u8,
+		blue_bits:        u8,
+		blue_shift:       u8,
+		alpha_bits:       u8,
+		alpha_shift:      u8,
+		accum_bits:       u8,
+		accum_red_bits:   u8,
+		accum_green_bits: u8,
+		accum_blue_bits:  u8,
+		accum_alpha_bits: u8,
+		depth_bits:       u8,
+		stencil_bits:     u8,
+		aux_buffers:      u8,
+		layer_type:       u8,
+		reserved:         u8,
+		transparent:      ColorRef,
+	}
+
+	PointFloat struct {
+		x, y: f32,
+	}
+
+	Glyph_MetricsFloat struct {
+		black_box_x:  f32,
+		black_box_y:  f32,
+		glyph_origin: PointFloat,
+		cell_inc_x:   f32,
+		cell_inc_y:   f32,
+	}
+)
+
+type (
+	CreateContextAttribsARBType proc(hdc: Hdc, h_share_context: rawptr, attribList: ^i32) -> Hglrc;
+	ChoosePixelFormatARBType    proc(hdc: Hdc, attrib_i_list: ^i32, attrib_f_list: ^f32, max_formats: u32, formats: ^i32, num_formats : ^u32) -> Bool #cc_c;
+	SwapIntervalEXTType         proc(interval: i32) -> bool #cc_c;
+	GetExtensionsStringARBType  proc(Hdc) -> ^u8 #cc_c;
+)
+
+var (
+	create_context_attribs_arb: CreateContextAttribsARBType;
+	choose_pixel_format_arb:    ChoosePixelFormatARBType;
+	swap_interval_ext:          SwapIntervalEXTType;
+	get_extensions_string_arb:  GetExtensionsStringARBType;
+)
+
+
+foreign opengl32 {
+	proc create_context           (hdc: Hdc) -> Hglrc                                                                                                 #link_name "wglCreateContext";
+	proc make_current             (hdc: Hdc, hglrc: Hglrc) -> Bool                                                                                    #link_name "wglMakeCurrent";
+	proc get_proc_address         (c_str: ^u8) -> Proc                                                                                                #link_name "wglGetProcAddress";
+	proc delete_context           (hglrc: Hglrc) -> Bool                                                                                              #link_name "wglDeleteContext";
+	proc copy_context             (src, dst: Hglrc, mask: u32) -> Bool                                                                                #link_name "wglCopyContext";
+	proc create_layer_context     (hdc: Hdc, layer_plane: i32) -> Hglrc                                                                               #link_name "wglCreateLayerContext";
+	proc describe_layer_plane     (hdc: Hdc, pixel_format, layer_plane: i32, bytes: u32, pd: ^LayerPlaneDescriptor) -> Bool                           #link_name "wglDescribeLayerPlane";
+	proc get_current_context      () -> Hglrc                                                                                                         #link_name "wglGetCurrentContext";
+	proc get_current_dc           () -> Hdc                                                                                                           #link_name "wglGetCurrentDC";
+	proc get_layer_palette_entries(hdc: Hdc, layer_plane, start, entries: i32, cr: ^ColorRef) -> i32                                                  #link_name "wglGetLayerPaletteEntries";
+	proc realize_layer_palette    (hdc: Hdc, layer_plane: i32, realize: Bool) -> Bool                                                                 #link_name "wglRealizeLayerPalette";
+	proc set_layer_palette_entries(hdc: Hdc, layer_plane, start, entries: i32, cr: ^ColorRef) -> i32                                                  #link_name "wglSetLayerPaletteEntries";
+	proc share_lists              (hglrc1, hglrc2: Hglrc) -> Bool                                                                                     #link_name "wglShareLists";
+	proc swap_layer_buffers       (hdc: Hdc, planes: u32) -> Bool                                                                                     #link_name "wglSwapLayerBuffers";
+	proc use_font_bitmaps         (hdc: Hdc, first, count, list_base: u32) -> Bool                                                                    #link_name "wglUseFontBitmaps";
+	proc use_font_outlines        (hdc: Hdc, first, count, list_base: u32, deviation, extrusion: f32, format: i32, gmf: ^Glyph_MetricsFloat) -> Bool  #link_name "wglUseFontOutlines";
 }
-
-Point_Float :: struct #ordered {
-	x, y: f32,
-}
-
-Glyph_Metrics_Float :: struct #ordered {
-	black_box_x:  f32,
-	black_box_y:  f32,
-	glyph_origin: Point_Float,
-	cell_inc_x:   f32,
-	cell_inc_y:   f32,
-}
-
-Create_Context_Attribs_ARB_Type :: #type proc(hdc: Hdc, hshareContext: rawptr, attribList: ^i32) -> Hglrc;
-Choose_Pixel_Format_ARB_Type    :: #type proc(hdc: Hdc, attrib_i_list: ^i32, attrib_f_list: ^f32, max_formats: u32, formats: ^i32, num_formats : ^u32) -> Bool #cc_c;
-
-
-CreateContext           :: proc(hdc: Hdc) -> Hglrc                                                                                                 #foreign opengl32 "wglCreateContext";
-MakeCurrent             :: proc(hdc: Hdc, hglrc: Hglrc) -> Bool                                                                                    #foreign opengl32 "wglMakeCurrent";
-GetProcAddress          :: proc(c_str: ^u8) -> Proc                                                                                                #foreign opengl32 "wglGetProcAddress";
-DeleteContext           :: proc(hglrc: Hglrc) -> Bool                                                                                              #foreign opengl32 "wglDeleteContext";
-CopyContext             :: proc(src, dst: Hglrc, mask: u32) -> Bool                                                                                #foreign opengl32 "wglCopyContext";
-CreateLayerContext      :: proc(hdc: Hdc, layer_plane: i32) -> Hglrc                                                                               #foreign opengl32 "wglCreateLayerContext";
-DescribeLayerPlane      :: proc(hdc: Hdc, pixel_format, layer_plane: i32, bytes: u32, pd: ^Layer_Plane_Descriptor) -> Bool                         #foreign opengl32 "wglDescribeLayerPlane";
-GetCurrentContext       :: proc() -> Hglrc                                                                                                         #foreign opengl32 "wglGetCurrentContext";
-GetCurrentDC            :: proc() -> Hdc                                                                                                           #foreign opengl32 "wglGetCurrentDC";
-GetLayerPaletteEntries  :: proc(hdc: Hdc, layer_plane, start, entries: i32, cr: ^Color_Ref) -> i32                                                 #foreign opengl32 "wglGetLayerPaletteEntries";
-RealizeLayerPalette     :: proc(hdc: Hdc, layer_plane: i32, realize: Bool) -> Bool                                                                 #foreign opengl32 "wglRealizeLayerPalette";
-SetLayerPaletteEntries  :: proc(hdc: Hdc, layer_plane, start, entries: i32, cr: ^Color_Ref) -> i32                                                 #foreign opengl32 "wglSetLayerPaletteEntries";
-ShareLists              :: proc(hglrc1, hglrc2: Hglrc) -> Bool                                                                                     #foreign opengl32 "wglShareLists";
-SwapLayerBuffers        :: proc(hdc: Hdc, planes: u32) -> Bool                                                                                     #foreign opengl32 "wglSwapLayerBuffers";
-UseFontBitmaps          :: proc(hdc: Hdc, first, count, list_base: u32) -> Bool                                                                    #foreign opengl32 "wglUseFontBitmaps";
-UseFontOutlines         :: proc(hdc: Hdc, first, count, list_base: u32, deviation, extrusion: f32, format: i32, gmf: ^Glyph_Metrics_Float) -> Bool #foreign opengl32 "wglUseFontOutlines";

core/types.odin

@@ -1,146 +1,98 @@
-is_signed :: proc(info: ^Type_Info) -> bool {
-	if is_integer(info) {
-		i := union_cast(^Type_Info.Integer)info;
-		return i.signed;
-	}
-	if is_float(info) {
-		return true;
-	}
-	return false;
-}
-is_integer :: proc(info: ^Type_Info) -> bool {
+proc is_signed(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
 	match i in type_info_base(info) {
-	case Type_Info.Integer: return true;
+	case TypeInfo.Integer: return i.signed;
+	case TypeInfo.Float:   return true;
 	}
 	return false;
 }
-is_float :: proc(info: ^Type_Info) -> bool {
+proc is_integer(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Float: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Integer);
+	return ok;
 }
-is_any :: proc(info: ^Type_Info) -> bool {
+proc is_float(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Any: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Float);
+	return ok;
 }
-is_string :: proc(info: ^Type_Info) -> bool {
+proc is_complex(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.String: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Complex);
+	return ok;
 }
-is_boolean :: proc(info: ^Type_Info) -> bool {
+proc is_any(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Boolean: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Any);
+	return ok;
 }
-is_pointer :: proc(info: ^Type_Info) -> bool {
+proc is_string(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Pointer: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.String);
+	return ok;
 }
-is_procedure :: proc(info: ^Type_Info) -> bool {
+proc is_boolean(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Procedure: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Boolean);
+	return ok;
 }
-is_array :: proc(info: ^Type_Info) -> bool {
+proc is_pointer(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Array: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Pointer);
+	return ok;
 }
-is_dynamic_array :: proc(info: ^Type_Info) -> bool {
+proc is_procedure(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Dynamic_Array: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Procedure);
+	return ok;
 }
-is_dynamic_map :: proc(info: ^Type_Info) -> bool {
+proc is_array(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Map: return i.count == 0;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Array);
+	return ok;
 }
-is_slice :: proc(info: ^Type_Info) -> bool {
+proc is_dynamic_array(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Slice: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.DynamicArray);
+	return ok;
 }
-is_vector :: proc(info: ^Type_Info) -> bool {
+proc is_dynamic_map(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Vector: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Map);
+	return ok;
 }
-is_tuple :: proc(info: ^Type_Info) -> bool {
+proc is_slice(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Tuple: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Slice);
+	return ok;
 }
-is_struct :: proc(info: ^Type_Info) -> bool {
+proc is_vector(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Struct: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Vector);
+	return ok;
 }
-is_union :: proc(info: ^Type_Info) -> bool {
+proc is_tuple(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Union: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Tuple);
+	return ok;
 }
-is_raw_union :: proc(info: ^Type_Info) -> bool {
+proc is_struct(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Raw_Union: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Struct);
+	return ok;
 }
-is_enum :: proc(info: ^Type_Info) -> bool {
+proc is_union(info: ^TypeInfo) -> bool {
 	if info == nil { return false; }
-
-	match i in type_info_base(info) {
-	case Type_Info.Enum: return true;
-	}
-	return false;
+	var _, ok = type_info_base(info).(^TypeInfo.Union);
+	return ok;
+}
+proc is_raw_union(info: ^TypeInfo) -> bool {
+	if info == nil { return false; }
+	var _, ok = type_info_base(info).(^TypeInfo.RawUnion);
+	return ok;
+}
+proc is_enum(info: ^TypeInfo) -> bool {
+	if info == nil { return false; }
+	var _, ok = type_info_base(info).(^TypeInfo.Enum);
+	return ok;
 }

core/utf16.odin

@@ -0,0 +1,59 @@
+const (
+	REPLACEMENT_CHAR = '\uFFFD';
+	MAX_RUNE         = '\U0010FFFF';
+
+	_surr1           = 0xd800;
+	_surr2           = 0xdc00;
+	_surr3           = 0xe000;
+	_surr_self       = 0x10000;
+)
+
+proc is_surrogate(r: rune) -> bool {
+	return _surr1 <= r && r < _surr3;
+}
+
+proc decode_surrogate_pair(r1, r2: rune) -> rune {
+	if _surr1 <= r1 && r1 < _surr2 && _surr2 <= r2 && r2 < _surr3 {
+		return (r1-_surr1)<<10 | (r2 - _surr2) + _surr_self;
+	}
+	return REPLACEMENT_CHAR;
+}
+
+
+proc encode_surrogate_pair(r: rune) -> (r1, r2: rune) {
+	if r < _surr_self || r > MAX_RUNE {
+		return REPLACEMENT_CHAR, REPLACEMENT_CHAR;
+	}
+	r -= _surr_self;
+	return _surr1 + (r>>10)&0x3ff, _surr2 + r&0x3ff;
+}
+
+proc encode(d: []u16, s: []rune) {
+	var n = len(s);
+	for r in s {
+		if r >= _surr_self {
+			n++;
+		}
+	}
+
+	var max_n = min(len(d), n);
+	n = 0;
+
+	for r in s {
+		match r {
+		case 0..<_surr1, _surr3..<_surr_self:
+			d[n] = u16(r);
+			n++;
+
+		case _surr_self..MAX_RUNE:
+			var r1, r2 = encode_surrogate_pair(r);
+			d[n]    = u16(r1);
+			d[n+1]  = u16(r2);
+			n += 2;
+
+		case:
+			d[n] = u16(REPLACEMENT_CHAR);
+			n++;
+		}
+	}
+}

core/utf8.odin

@@ -1,74 +1,78 @@
-RUNE_ERROR :: '\ufffd';
-RUNE_SELF  :: 0x80;
-RUNE_BOM   :: 0xfeff;
-RUNE_EOF   :: ~cast(rune)0;
-MAX_RUNE   :: '\U0010ffff';
-UTF_MAX    :: 4;
+const (
+	RUNE_ERROR = '\ufffd';
+	RUNE_SELF  = 0x80;
+	RUNE_BOM   = 0xfeff;
+	RUNE_EOF   = ~rune(0);
+	MAX_RUNE   = '\U0010ffff';
+	UTF_MAX    = 4;
 
-SURROGATE_MIN :: 0xd800;
-SURROGATE_MAX :: 0xdfff;
+	SURROGATE_MIN = 0xd800;
+	SURROGATE_MAX = 0xdfff;
 
-T1 :: 0b0000_0000;
-TX :: 0b1000_0000;
-T2 :: 0b1100_0000;
-T3 :: 0b1110_0000;
-T4 :: 0b1111_0000;
-T5 :: 0b1111_1000;
+	T1 = 0b0000_0000;
+	TX = 0b1000_0000;
+	T2 = 0b1100_0000;
+	T3 = 0b1110_0000;
+	T4 = 0b1111_0000;
+	T5 = 0b1111_1000;
 
-MASKX :: 0b0011_1111;
-MASK2 :: 0b0001_1111;
-MASK3 :: 0b0000_1111;
-MASK4 :: 0b0000_0111;
+	MASKX = 0b0011_1111;
+	MASK2 = 0b0001_1111;
+	MASK3 = 0b0000_1111;
+	MASK4 = 0b0000_0111;
 
-RUNE1_MAX :: 1<<7 - 1;
-RUNE2_MAX :: 1<<11 - 1;
-RUNE3_MAX :: 1<<16 - 1;
+	RUNE1_MAX = 1<<7 - 1;
+	RUNE2_MAX = 1<<11 - 1;
+	RUNE3_MAX = 1<<16 - 1;
 
-// The default lowest and highest continuation byte.
-LOCB :: 0b1000_0000;
-HICB :: 0b1011_1111;
+	// The default lowest and highest continuation byte.
+	LOCB = 0b1000_0000;
+	HICB = 0b1011_1111;
+)
 
-Accept_Range :: struct { lo, hi: u8 }
+type AcceptRange struct { lo, hi: u8 }
 
-immutable accept_ranges := [5]Accept_Range{
-	{0x80, 0xbf},
-	{0xa0, 0xbf},
-	{0x80, 0x9f},
-	{0x90, 0xbf},
-	{0x80, 0x8f},
-};
+var (
+	accept_ranges = [5]AcceptRange{
+		{0x80, 0xbf},
+		{0xa0, 0xbf},
+		{0x80, 0x9f},
+		{0x90, 0xbf},
+		{0x80, 0x8f},
+	};
 
-immutable accept_sizes := [256]byte{
-	0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x00-0x0f
-	0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x10-0x1f
-	0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x20-0x2f
-	0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x30-0x3f
-	0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x40-0x4f
-	0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x50-0x5f
-	0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x60-0x6f
-	0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x70-0x7f
+	accept_sizes = [256]u8{
+		0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x00-0x0f
+		0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x10-0x1f
+		0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x20-0x2f
+		0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x30-0x3f
+		0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x40-0x4f
+		0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x50-0x5f
+		0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x60-0x6f
+		0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, // 0x70-0x7f
 
-	0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, // 0x80-0x8f
-	0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, // 0x90-0x9f
-	0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, // 0xa0-0xaf
-	0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, // 0xb0-0xbf
-	0xf1, 0xf1, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, // 0xc0-0xcf
-	0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, // 0xd0-0xdf
-	0x13, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x23, 0x03, 0x03, // 0xe0-0xef
-	0x34, 0x04, 0x04, 0x04, 0x44, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, // 0xf0-0xff
-};
+		0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, // 0x80-0x8f
+		0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, // 0x90-0x9f
+		0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, // 0xa0-0xaf
+		0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, // 0xb0-0xbf
+		0xf1, 0xf1, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, // 0xc0-0xcf
+		0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, // 0xd0-0xdf
+		0x13, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x23, 0x03, 0x03, // 0xe0-0xef
+		0x34, 0x04, 0x04, 0x04, 0x44, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, 0xf1, // 0xf0-0xff
+	};
+)
 
-encode_rune :: proc(r: rune) -> ([4]byte, int) {
-	buf: [4]byte;
-	i := cast(u32)r;
-	mask: byte : 0x3f;
+proc encode_rune(r: rune) -> ([4]u8, int) {
+	var buf: [4]u8;
+	var i = u32(r);
+	const mask: u8 = 0x3f;
 	if i <= 1<<7-1 {
-		buf[0] = cast(byte)r;
+		buf[0] = u8(r);
 		return buf, 1;
 	}
 	if i <= 1<<11-1 {
-		buf[0] = 0xc0 | cast(byte)(r>>6);
-		buf[1] = 0x80 | cast(byte)r & mask;
+		buf[0] = 0xc0 | u8(r>>6);
+		buf[1] = 0x80 | u8(r) & mask;
 		return buf, 2;
 	}
 
@@ -79,71 +83,71 @@ encode_rune :: proc(r: rune) -> ([4]byte, int) {
 	}
 
 	if i <= 1<<16-1 {
-		buf[0] = 0xe0 | cast(byte)(r>>12);
-		buf[1] = 0x80 | cast(byte)(r>>6) & mask;
-		buf[2] = 0x80 | cast(byte)r    & mask;
+		buf[0] = 0xe0 | u8(r>>12);
+		buf[1] = 0x80 | u8(r>>6) & mask;
+		buf[2] = 0x80 | u8(r)    & mask;
 		return buf, 3;
 	}
 
-	buf[0] = 0xf0 | cast(byte)(r>>18);
-	buf[1] = 0x80 | cast(byte)(r>>12) & mask;
-	buf[2] = 0x80 | cast(byte)(r>>6)  & mask;
-	buf[3] = 0x80 | cast(byte)r       & mask;
+	buf[0] = 0xf0 | u8(r>>18);
+	buf[1] = 0x80 | u8(r>>12) & mask;
+	buf[2] = 0x80 | u8(r>>6)  & mask;
+	buf[3] = 0x80 | u8(r)       & mask;
 	return buf, 4;
 }
 
-decode_rune :: proc(s: string) -> (rune, int) #inline { return decode_rune(cast([]byte)s); }
-decode_rune :: proc(s: []byte) -> (rune, int) {
-	n := s.count;
+proc decode_rune(s: string) -> (rune, int) #inline { return decode_rune([]u8(s)); }
+proc decode_rune(s: []u8) -> (rune, int) {
+	var n = len(s);
 	if n < 1 {
 		return RUNE_ERROR, 0;
 	}
-	s0 := s[0];
-	x := accept_sizes[s0];
+	var s0 = s[0];
+	var x = accept_sizes[s0];
 	if x >= 0xF0 {
-		mask := cast(rune)(x) << 31 >> 31; // NOTE(bill): Create 0x0000 or 0xffff.
-		return cast(rune)(s[0])&~mask | RUNE_ERROR&mask, 1;
+		var mask = rune(x) << 31 >> 31; // NOTE(bill): Create 0x0000 or 0xffff.
+		return rune(s[0])&~mask | RUNE_ERROR&mask, 1;
 	}
-	sz := x & 7;
-	accept := accept_ranges[x>>4];
-	if n < cast(int)sz {
+	var sz = x & 7;
+	var accept = accept_ranges[x>>4];
+	if n < int(sz) {
 		return RUNE_ERROR, 1;
 	}
-	b1 := s[1];
+	var b1 = s[1];
 	if b1 < accept.lo || accept.hi < b1 {
 		return RUNE_ERROR, 1;
 	}
 	if sz == 2 {
-		return cast(rune)(s0&MASK2)<<6 | cast(rune)(b1&MASKX), 2;
+		return rune(s0&MASK2)<<6 | rune(b1&MASKX), 2;
 	}
-	b2 := s[2];
+	var b2 = s[2];
 	if b2 < LOCB || HICB < b2 {
 		return RUNE_ERROR, 1;
 	}
 	if sz == 3 {
-		return cast(rune)(s0&MASK3)<<12 | cast(rune)(b1&MASKX)<<6 | cast(rune)(b2&MASKX), 3;
+		return rune(s0&MASK3)<<12 | rune(b1&MASKX)<<6 | rune(b2&MASKX), 3;
 	}
-	b3 := s[3];
+	var b3 = s[3];
 	if b3 < LOCB || HICB < b3 {
 		return RUNE_ERROR, 1;
 	}
-	return cast(rune)(s0&MASK4)<<18 | cast(rune)(b1&MASKX)<<12 | cast(rune)(b2&MASKX)<<6 | cast(rune)(b3&MASKX), 4;
+	return rune(s0&MASK4)<<18 | rune(b1&MASKX)<<12 | rune(b2&MASKX)<<6 | rune(b3&MASKX), 4;
 }
 
 
 
-decode_last_rune :: proc(s: string) -> (rune, int) #inline { return decode_last_rune(cast([]byte)s); }
-decode_last_rune :: proc(s: []byte) -> (rune, int) {
-	r: rune;
-	size: int;
-	start, end, limit: int;
+proc decode_last_rune(s: string) -> (rune, int) #inline { return decode_last_rune([]u8(s)); }
+proc decode_last_rune(s: []u8) -> (rune, int) {
+	var r: rune;
+	var size: int;
+	var start, end, limit: int;
 
-	end = s.count;
+	end = len(s);
 	if end == 0 {
 		return RUNE_ERROR, 0;
 	}
 	start = end-1;
-	r = cast(rune)s[start];
+	r = rune(s[start]);
 	if r < RUNE_SELF {
 		return r, 1;
 	}
@@ -160,7 +164,7 @@ decode_last_rune :: proc(s: []byte) -> (rune, int) {
 	}
 
 	start = max(start, 0);
-	r, size = decode_rune(s[start..end]);
+	r, size = decode_rune(s[start..<end]);
 	if start+size != end {
 		return RUNE_ERROR, 1;
 	}
@@ -171,7 +175,7 @@ decode_last_rune :: proc(s: []byte) -> (rune, int) {
 
 
 
-valid_rune :: proc(r: rune) -> bool {
+proc valid_rune(r: rune) -> bool {
 	if r < 0 {
 		return false;
 	} else if SURROGATE_MIN <= r && r <= SURROGATE_MAX {
@@ -182,32 +186,32 @@ valid_rune :: proc(r: rune) -> bool {
 	return true;
 }
 
-valid_string :: proc(s: string) -> bool {
-	n := s.count;
-	for i := 0; i < n; {
-		si := s[i];
+proc valid_string(s: string) -> bool {
+	var n = len(s);
+	for var i = 0; i < n; {
+		var si = s[i];
 		if si < RUNE_SELF { // ascii
 			i++;
 			continue;
 		}
-		x := accept_sizes[si];
+		var x = accept_sizes[si];
 		if x == 0xf1 {
 			return false;
 		}
-		size := cast(int)(x & 7);
+		var size = int(x & 7);
 		if i+size > n {
 			return false;
 		}
-		ar := accept_ranges[x>>4];
-		if b := s[i+1]; b < ar.lo || ar.hi < b {
+		var ar = accept_ranges[x>>4];
+		if var b = s[i+1]; b < ar.lo || ar.hi < b {
 			return false;
 		} else if size == 2 {
 			// Okay
-		} else if b := s[i+2]; b < 0x80 || 0xbf < b {
+		} else if var b = s[i+2]; b < 0x80 || 0xbf < b {
 			return false;
 		} else if size == 3 {
 			// Okay
-		} else if b := s[i+3]; b < 0x80 || 0xbf < b {
+		} else if var b = s[i+3]; b < 0x80 || 0xbf < b {
 			return false;
 		}
 		i += size;
@@ -215,40 +219,40 @@ valid_string :: proc(s: string) -> bool {
 	return true;
 }
 
-rune_start :: proc(b: byte) -> bool #inline { return b&0xc0 != 0x80; }
+proc rune_start(b: u8) -> bool #inline { return b&0xc0 != 0x80; }
 
-rune_count :: proc(s: string) -> int #inline { return rune_count(cast([]byte)s); }
-rune_count :: proc(s: []byte) -> int {
-	count := 0;
-	n := s.count;
+proc rune_count(s: string) -> int #inline { return rune_count([]u8(s)); }
+proc rune_count(s: []u8) -> int {
+	var count = 0;
+	var n = len(s);
 
-	for i := 0; i < n; {
+	for var i = 0; i < n; {
 		defer count++;
-		si := s[i];
+		var si = s[i];
 		if si < RUNE_SELF { // ascii
 			i++;
 			continue;
 		}
-		x := accept_sizes[si];
+		var x = accept_sizes[si];
 		if x == 0xf1 {
 			i++;
 			continue;
 		}
-		size := cast(int)(x & 7);
+		var size = int(x & 7);
 		if i+size > n {
 			i++;
 			continue;
 		}
-		ar := accept_ranges[x>>4];
-		if b := s[i+1]; b < ar.lo || ar.hi < b {
+		var ar = accept_ranges[x>>4];
+		if var b = s[i+1]; b < ar.lo || ar.hi < b {
 			size = 1;
 		} else if size == 2 {
 			// Okay
-		} else if b := s[i+2]; b < 0x80 || 0xbf < b {
+		} else if var b = s[i+2]; b < 0x80 || 0xbf < b {
 			size = 1;
 		} else if size == 3 {
 			// Okay
-		} else if b := s[i+3]; b < 0x80 || 0xbf < b {
+		} else if var b = s[i+3]; b < 0x80 || 0xbf < b {
 			size = 1;
 		}
 		i += size;
@@ -257,7 +261,7 @@ rune_count :: proc(s: []byte) -> int {
 }
 
 
-rune_size :: proc(r: rune) -> int {
+proc rune_size(r: rune) -> int {
 	match {
 	case r < 0:          return -1;
 	case r <= 1<<7  - 1: return 1;

misc/shell.bat

@@ -1,8 +1,10 @@
 @echo off
 
-rem call "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\vcvarsall.bat" x64 1> NUL
-call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x64 1> NUL
 rem call "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\vcvarsall.bat" x86 1> NUL
+call "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\vcvarsall.bat" x64 1> NUL
+rem call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x64 1> NUL
+rem call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" x86 1> NUL
+rem call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" x64 1> NUL
 set _NO_DEBUG_HEAP=1
 
 set path=w:\Odin\misc;%path%

src/array.cpp

@@ -1,98 +1,7 @@
 #define ARRAY_GROW_FORMULA(x) (2*(x) + 8)
 GB_STATIC_ASSERT(ARRAY_GROW_FORMULA(0) > 0);
 
-#define Array(Type_) struct { \
-	gbAllocator allocator; \
-	Type_ *     e; \
-	isize       count; \
-	isize       capacity; \
-}
-
-typedef Array(void) ArrayVoid;
-
-#define array_init_reserve(x_, allocator_, init_capacity_) do { \
-	void **e = cast(void **)&((x_)->e); \
-	GB_ASSERT((x_) != NULL); \
-	(x_)->allocator = (allocator_); \
-	(x_)->count = 0; \
-	(x_)->capacity = (init_capacity_); \
-	*e = gb_alloc((allocator_), gb_size_of(*(x_)->e)*(init_capacity_)); \
-} while (0)
-
-#define array_init_count(x_, allocator_, init_count_) do { \
-	void **e = cast(void **)&((x_)->e); \
-	GB_ASSERT((x_) != NULL); \
-	(x_)->allocator = (allocator_); \
-	(x_)->count = (init_count_); \
-	(x_)->capacity = (init_count_); \
-	*e = gb_alloc((allocator_), gb_size_of(*(x_)->e)*(init_count_)); \
-} while (0)
-
-#define array_init(x_, allocator_)        do { array_init_reserve(x_, allocator_, ARRAY_GROW_FORMULA(0)); } while (0)
-#define array_free(x_)                    do { gb_free((x_)->allocator, (x_)->e); } while (0)
-#define array_set_capacity(x_, capacity_) do { array__set_capacity((x_), (capacity_), gb_size_of(*(x_)->e)); } while (0)
-
-#define array_grow(x_, min_capacity_) do { \
-	isize new_capacity = ARRAY_GROW_FORMULA((x_)->capacity); \
-	if (new_capacity < (min_capacity_)) { \
-		new_capacity = (min_capacity_); \
-	} \
-	array_set_capacity(x_, new_capacity); \
-} while (0)
-
-#define array_add(x_, item_) do { \
-	if ((x_)->capacity < (x_)->count+1) { \
-		array_grow(x_, 0); \
-	} \
-	(x_)->e[(x_)->count++] = item_; \
-} while (0)
-
-#define array_pop(x_)   do { GB_ASSERT((x_)->count > 0); (x_)->count--; } while (0)
-#define array_clear(x_) do { (x_)->count = 0; } while (0)
-
-#define array_resize(x_, new_count_) do { \
-	if ((x_)->capacity < (new_count_)) { \
-		array_grow((x_), (new_count_)); \
-	} \
-	(x_)->count = (new_count_); \
-} while (0)
-
-#define array_reserve(x_, new_capacity_) do { \
-	if ((x_)->capacity < (new_capacity_)) { \
-		array_set_capacity((x_), (new_capacity_)); \
-	} \
-} while (0)
-
-
-
-
-void array__set_capacity(void *ptr, isize capacity, isize element_size) {
-	ArrayVoid *x = cast(ArrayVoid *)ptr;
-	GB_ASSERT(ptr != NULL);
-
-	GB_ASSERT(element_size > 0);
-
-	if (capacity == x->capacity) {
-		return;
-	}
-
-	if (capacity < x->count) {
-		if (x->capacity < capacity) {
-			isize new_capacity = ARRAY_GROW_FORMULA(x->capacity);
-			if (new_capacity < capacity) {
-				new_capacity = capacity;
-			}
-			array__set_capacity(ptr, new_capacity, element_size);
-		}
-		x->count = capacity;
-	}
-
-	x->e = gb_resize(x->allocator, x->e, element_size*x->capacity, element_size*capacity);
-	x->capacity = capacity;
-}
-
-
-#if 0
+#if 1
 template <typename T>
 struct Array {
 	gbAllocator allocator;
@@ -224,6 +133,97 @@ void array_set_capacity(Array<T> *array, isize capacity) {
 	array->capacity = capacity;
 }
 
-
-
 #endif
+
+#if 0
+#define Array(Type_) struct { \
+	gbAllocator allocator; \
+	Type_ *     e; \
+	isize       count; \
+	isize       capacity; \
+}
+
+typedef Array(void) ArrayVoid;
+
+#define array_init_reserve(x_, allocator_, init_capacity_) do { \
+	void **e = cast(void **)&((x_)->e); \
+	GB_ASSERT((x_) != NULL); \
+	(x_)->allocator = (allocator_); \
+	(x_)->count = 0; \
+	(x_)->capacity = (init_capacity_); \
+	*e = gb_alloc((allocator_), gb_size_of(*(x_)->e)*(init_capacity_)); \
+} while (0)
+
+#define array_init_count(x_, allocator_, init_count_) do { \
+	void **e = cast(void **)&((x_)->e); \
+	GB_ASSERT((x_) != NULL); \
+	(x_)->allocator = (allocator_); \
+	(x_)->count = (init_count_); \
+	(x_)->capacity = (init_count_); \
+	*e = gb_alloc((allocator_), gb_size_of(*(x_)->e)*(init_count_)); \
+} while (0)
+
+#define array_init(x_, allocator_)        do { array_init_reserve(x_, allocator_, ARRAY_GROW_FORMULA(0)); } while (0)
+#define array_free(x_)                    do { gb_free((x_)->allocator, (x_)->e); } while (0)
+#define array_set_capacity(x_, capacity_) do { array__set_capacity((x_), (capacity_), gb_size_of(*(x_)->e)); } while (0)
+
+#define array_grow(x_, min_capacity_) do { \
+	isize new_capacity = ARRAY_GROW_FORMULA((x_)->capacity); \
+	if (new_capacity < (min_capacity_)) { \
+		new_capacity = (min_capacity_); \
+	} \
+	array_set_capacity(x_, new_capacity); \
+} while (0)
+
+#define array_add(x_, item_) do { \
+	if ((x_)->capacity < (x_)->count+1) { \
+		array_grow(x_, 0); \
+	} \
+	(x_)->e[(x_)->count++] = item_; \
+} while (0)
+
+#define array_pop(x_)   do { GB_ASSERT((x_)->count > 0); (x_)->count--; } while (0)
+#define array_clear(x_) do { (x_)->count = 0; } while (0)
+
+#define array_resize(x_, new_count_) do { \
+	if ((x_)->capacity < (new_count_)) { \
+		array_grow((x_), (new_count_)); \
+	} \
+	(x_)->count = (new_count_); \
+} while (0)
+
+#define array_reserve(x_, new_capacity_) do { \
+	if ((x_)->capacity < (new_capacity_)) { \
+		array_set_capacity((x_), (new_capacity_)); \
+	} \
+} while (0)
+
+
+
+
+void array__set_capacity(void *ptr, isize capacity, isize element_size) {
+	ArrayVoid *x = cast(ArrayVoid *)ptr;
+	GB_ASSERT(ptr != NULL);
+
+	GB_ASSERT(element_size > 0);
+
+	if (capacity == x->capacity) {
+		return;
+	}
+
+	if (capacity < x->count) {
+		if (x->capacity < capacity) {
+			isize new_capacity = ARRAY_GROW_FORMULA(x->capacity);
+			if (new_capacity < capacity) {
+				new_capacity = capacity;
+			}
+			array__set_capacity(ptr, new_capacity, element_size);
+		}
+		x->count = capacity;
+	}
+
+	x->e = gb_resize(x->allocator, x->e, element_size*x->capacity, element_size*capacity);
+	x->capacity = capacity;
+}
+#endif
+

src/build_settings.cpp

@@ -1,5 +1,5 @@
 // This stores the information for the specify architecture of this build
-typedef struct BuildContext {
+struct BuildContext {
 	// Constants
 	String ODIN_OS;      // target operating system
 	String ODIN_ARCH;    // target architecture
@@ -12,16 +12,21 @@ typedef struct BuildContext {
 	i64    word_size; // Size of a pointer, must be >= 4
 	i64    max_align; // max alignment, must be >= 1 (and typically >= word_size)
 
+	String opt_flags;
 	String llc_flags;
 	String link_flags;
 	bool   is_dll;
-} BuildContext;
+	bool   generate_docs;
+	i32    optimization_level;
+};
 
 
 gb_global BuildContext build_context = {0};
 
 
 
+
+
 // TODO(bill): OS dependent versions for the BuildContext
 // join_path
 // is_dir
@@ -35,7 +40,7 @@ String const NIX_SEPARATOR_STRING   = {cast(u8 *)"/",  1};
 #if defined(GB_SYSTEM_WINDOWS)
 String odin_root_dir(void) {
 	String path = global_module_path;
-	Array(wchar_t) path_buf;
+	Array<wchar_t> path_buf;
 	isize len, i;
 	gbTempArenaMemory tmp;
 	wchar_t *text;
@@ -48,7 +53,7 @@ String odin_root_dir(void) {
 
 	len = 0;
 	for (;;) {
-		len = GetModuleFileNameW(NULL, &path_buf.e[0], path_buf.count);
+		len = GetModuleFileNameW(NULL, &path_buf[0], path_buf.count);
 		if (len == 0) {
 			return make_string(NULL, 0);
 		}
@@ -57,6 +62,8 @@ String odin_root_dir(void) {
 		}
 		array_resize(&path_buf, 2*path_buf.count + 300);
 	}
+	len += 1; // NOTE(bill): It needs an extra 1 for some reason
+
 
 	tmp = gb_temp_arena_memory_begin(&string_buffer_arena);
 
@@ -64,8 +71,9 @@ String odin_root_dir(void) {
 
 	GetModuleFileNameW(NULL, text, len);
 	path = string16_to_string(heap_allocator(), make_string16(text, len));
+
 	for (i = path.len-1; i >= 0; i--) {
-		u8 c = path.text[i];
+		u8 c = path[i];
 		if (c == '/' || c == '\\') {
 			break;
 		}
@@ -88,10 +96,10 @@ String odin_root_dir(void) {
 
 String odin_root_dir(void) {
 	String path = global_module_path;
-	Array(char) path_buf;
+	Array<char> path_buf;
 	isize len, i;
 	gbTempArenaMemory tmp;
-	wchar_t *text;
+	u8 *text;
 
 	if (global_module_path_set) {
 		return global_module_path;
@@ -101,8 +109,8 @@ String odin_root_dir(void) {
 
 	len = 0;
 	for (;;) {
-		int sz = path_buf.count;
-		int res = _NSGetExecutablePath(&path_buf.e[0], &sz);
+		u32 sz = path_buf.count;
+		int res = _NSGetExecutablePath(&path_buf[0], &sz);
 		if(res == 0) {
 			len = sz;
 			break;
@@ -114,11 +122,11 @@ String odin_root_dir(void) {
 
 	tmp = gb_temp_arena_memory_begin(&string_buffer_arena);
 	text = gb_alloc_array(string_buffer_allocator, u8, len + 1);
-	gb_memmove(text, &path_buf.e[0], len);
+	gb_memmove(text, &path_buf[0], len);
 
 	path = make_string(text, len);
 	for (i = path.len-1; i >= 0; i--) {
-		u8 c = path.text[i];
+		u8 c = path[i];
 		if (c == '/' || c == '\\') {
 			break;
 		}
@@ -135,7 +143,62 @@ String odin_root_dir(void) {
 	return path;
 }
 #else
-#error Implement system
+
+// NOTE: Linux / Unix is unfinished and not tested very well.
+#include <sys/stat.h>
+
+String odin_root_dir(void) {
+	String path = global_module_path;
+	Array<char> path_buf;
+	isize len, i;
+	gbTempArenaMemory tmp;
+	u8 *text;
+
+	if (global_module_path_set) {
+		return global_module_path;
+	}
+
+	array_init_count(&path_buf, heap_allocator(), 300);
+
+	len = 0;
+	for (;;) {
+		// This is not a 100% reliable system, but for the purposes
+		// of this compiler, it should be _good enough_.
+		// That said, there's no solid 100% method on Linux to get the program's
+		// path without checking this link. Sorry.
+		len = readlink("/proc/self/exe", &path_buf[0], path_buf.count);
+		if(len == 0) {
+			return make_string(NULL, 0);
+		}
+		if (len < path_buf.count) {
+			break;
+		}
+		array_resize(&path_buf, 2*path_buf.count + 300);
+	}
+
+
+	tmp = gb_temp_arena_memory_begin(&string_buffer_arena);
+	text = gb_alloc_array(string_buffer_allocator, u8, len + 1);
+	gb_memmove(text, &path_buf[0], len);
+
+	path = make_string(text, len);
+	for (i = path.len-1; i >= 0; i--) {
+		u8 c = path[i];
+		if (c == '/' || c == '\\') {
+			break;
+		}
+		path.len--;
+	}
+
+	global_module_path = path;
+	global_module_path_set = true;
+
+	gb_temp_arena_memory_end(tmp);
+
+	array_free(&path_buf);
+
+	return path;
+}
 #endif
 
 
@@ -145,10 +208,10 @@ String path_to_fullpath(gbAllocator a, String s) {
 	String16 string16 = string_to_string16(string_buffer_allocator, s);
 	String result = {0};
 
-	DWORD len = GetFullPathNameW(string16.text, 0, NULL, NULL);
+	DWORD len = GetFullPathNameW(&string16[0], 0, NULL, NULL);
 	if (len != 0) {
 		wchar_t *text = gb_alloc_array(string_buffer_allocator, wchar_t, len+1);
-		GetFullPathNameW(string16.text, len, text, NULL);
+		GetFullPathNameW(&string16[0], len, text, NULL);
 		text[len] = 0;
 		result = string16_to_string(a, make_string16(text, len));
 	}
@@ -157,11 +220,10 @@ String path_to_fullpath(gbAllocator a, String s) {
 }
 #elif defined(GB_SYSTEM_OSX) || defined(GB_SYSTEM_UNIX)
 String path_to_fullpath(gbAllocator a, String s) {
-	char* p = realpath(s.text, 0);
-	// GB_ASSERT(p && "file does not exist");
-	if(!p) return make_string_c("");
+	char *p = realpath(cast(char *)&s[0], 0);
+	if(p == NULL) return make_string_c("");
 
-	return make_string(p, strlen(p));
+	return make_string_c(p);
 }
 #else
 #error Implement system
@@ -175,8 +237,8 @@ String get_fullpath_relative(gbAllocator a, String base_dir, String path) {
 	u8 *str = gb_alloc_array(heap_allocator(), u8, str_len+1);
 
 	isize i = 0;
-	gb_memmove(str+i, base_dir.text, base_dir.len); i += base_dir.len;
-	gb_memmove(str+i, path.text, path.len);
+	gb_memmove(str+i, &base_dir[0], base_dir.len); i += base_dir.len;
+	gb_memmove(str+i, &path[0], path.len);
 	str[str_len] = '\0';
 	res = path_to_fullpath(a, make_string(str, str_len));
 	gb_free(heap_allocator(), str);
@@ -193,9 +255,9 @@ String get_fullpath_core(gbAllocator a, String path) {
 	isize str_len = module_dir.len + core_len + path.len;
 	u8 *str = gb_alloc_array(heap_allocator(), u8, str_len+1);
 
-	gb_memmove(str, module_dir.text, module_dir.len);
+	gb_memmove(str, &module_dir[0], module_dir.len);
 	gb_memmove(str+module_dir.len, core, core_len);
-	gb_memmove(str+module_dir.len+core_len, path.text, path.len);
+	gb_memmove(str+module_dir.len+core_len, &path[0], path.len);
 	str[str_len] = '\0';
 
 	res = path_to_fullpath(a, make_string(str, str_len));
@@ -209,30 +271,90 @@ String get_fullpath_core(gbAllocator a, String path) {
 void init_build_context(void) {
 	BuildContext *bc = &build_context;
 	bc->ODIN_VENDOR  = str_lit("odin");
-	bc->ODIN_VERSION = str_lit("0.1.3");
+	bc->ODIN_VERSION = str_lit("0.5.0");
 	bc->ODIN_ROOT    = odin_root_dir();
 
 #if defined(GB_SYSTEM_WINDOWS)
 	bc->ODIN_OS      = str_lit("windows");
-	bc->ODIN_ARCH    = str_lit("amd64");
-	bc->ODIN_ENDIAN  = str_lit("little");
 #elif defined(GB_SYSTEM_OSX)
 	bc->ODIN_OS      = str_lit("osx");
-	bc->ODIN_ARCH    = str_lit("amd64");
-	bc->ODIN_ENDIAN  = str_lit("little");
 #else
-#error Implement system
+	bc->ODIN_OS      = str_lit("linux");
 #endif
 
-	if (str_eq(bc->ODIN_ARCH, str_lit("amd64"))) {
+#if defined(GB_ARCH_64_BIT)
+	bc->ODIN_ARCH = str_lit("amd64");
+#else
+	bc->ODIN_ARCH = str_lit("x86");
+#endif
+
+	{
+		u16 x = 1;
+		bool big = !(*cast(u8 *)&x);
+		bc->ODIN_ENDIAN = big ? str_lit("big") : str_lit("little");
+	}
+
+
+	// NOTE(zangent): The linker flags to set the build architecture are different
+	// across OSs. It doesn't make sense to allocate extra data on the heap
+	// here, so I just #defined the linker flags to keep things concise.
+	#if defined(GB_SYSTEM_WINDOWS)
+		#define LINK_FLAG_X64 "/machine:x64"
+		#define LINK_FLAG_X86 "/machine:x86"
+
+	#elif defined(GB_SYSTEM_OSX)
+		// NOTE(zangent): MacOS systems are x64 only, so ld doesn't have
+		// an architecture option. All compilation done on MacOS must be x64.
+		GB_ASSERT(bc->ODIN_ARCH == "amd64");
+
+		#define LINK_FLAG_X64 ""
+		#define LINK_FLAG_X86 ""
+	#else
+		// Linux, but also BSDs and the like.
+		// NOTE(zangent): When clang is swapped out with ld as the linker,
+		//   the commented flags here should be used. Until then, we'll have
+		//   to use alternative build flags made for clang.
+		/*
+			#define LINK_FLAG_X64 "-m elf_x86_64"
+			#define LINK_FLAG_X86 "-m elf_i386"
+		*/
+		#define LINK_FLAG_X64 "-arch x86-64"
+		#define LINK_FLAG_X86 "-arch x86"
+	#endif
+
+
+	if (bc->ODIN_ARCH == "amd64") {
 		bc->word_size = 8;
 		bc->max_align = 16;
+
 		bc->llc_flags = str_lit("-march=x86-64 ");
-		bc->link_flags = str_lit("/machine:x64 ");
-	} else if (str_eq(bc->ODIN_ARCH, str_lit("x86"))) {
+		bc->link_flags = str_lit(LINK_FLAG_X64 " ");
+	} else if (bc->ODIN_ARCH == "x86") {
 		bc->word_size = 4;
 		bc->max_align = 8;
 		bc->llc_flags = str_lit("-march=x86 ");
-		bc->link_flags = str_lit("/machine:x86 ");
+		bc->link_flags = str_lit(LINK_FLAG_X86 " ");
+	} else {
+		gb_printf_err("This current architecture is not supported");
+		gb_exit(1);
 	}
+
+
+	isize opt_max = 1023;
+	char *opt_flags_string = gb_alloc_array(heap_allocator(), char, opt_max+1);
+	isize opt_len = 0;
+	bc->optimization_level = gb_clamp(bc->optimization_level, 0, 3);
+	if (bc->optimization_level != 0) {
+		opt_len = gb_snprintf(opt_flags_string, opt_max, "-O%d", bc->optimization_level);
+	} else {
+		opt_len = gb_snprintf(opt_flags_string, opt_max, "");
+	}
+	if (opt_len > 0) {
+		opt_len--;
+	}
+	bc->opt_flags = make_string(cast(u8 *)opt_flags_string, opt_len);
+
+
+	#undef LINK_FLAG_X64
+	#undef LINK_FLAG_X86
 }

src/check_decl.cpp

@@ -1,22 +1,21 @@
 bool check_is_terminating(AstNode *node);
 void check_stmt          (Checker *c, AstNode *node, u32 flags);
-void check_stmt_list     (Checker *c, AstNodeArray stmts, u32 flags);
 
 // NOTE(bill): `content_name` is for debugging and error messages
 Type *check_init_variable(Checker *c, Entity *e, Operand *operand, String context_name) {
 	if (operand->mode == Addressing_Invalid ||
-	    operand->type == t_invalid ||
-	    e->type == t_invalid) {
+		operand->type == t_invalid ||
+		e->type == t_invalid) {
 
 		if (operand->mode == Addressing_Builtin) {
 			gbString expr_str = expr_to_string(operand->expr);
 
 			// TODO(bill): is this a good enough error message?
 			// TODO(bill): Actually allow built in procedures to be passed around and thus be created on use
-			error_node(operand->expr,
-			      "Cannot assign builtin procedure `%s` in %.*s",
-			      expr_str,
-			      LIT(context_name));
+			error(operand->expr,
+				  "Cannot assign built-in procedure `%s` in %.*s",
+				  expr_str,
+				  LIT(context_name));
 
 			operand->mode = Addressing_Invalid;
 
@@ -35,16 +34,36 @@ Type *check_init_variable(Checker *c, Entity *e, Operand *operand, String contex
 		Type *t = operand->type;
 		if (is_type_untyped(t)) {
 			if (t == t_invalid || is_type_untyped_nil(t)) {
-				error(e->token, "Use of untyped nil in %.*s", LIT(context_name));
+				error(e->token, "Invalid use of untyped nil in %.*s", LIT(context_name));
+				e->type = t_invalid;
+				return NULL;
+			}
+			if (t == t_invalid || is_type_untyped_undef(t)) {
+				error(e->token, "Invalid use of --- in %.*s", LIT(context_name));
 				e->type = t_invalid;
 				return NULL;
 			}
 			t = default_type(t);
 		}
+		if (is_type_gen_proc(t)) {
+			error(e->token, "Invalid use of a generic procedure in %.*s", LIT(context_name));
+			e->type = t_invalid;
+			return NULL;
+		}
+		if (is_type_bit_field_value(t)) {
+			t = default_bit_field_value_type(t);
+		}
+		if (is_type_variant(t)) {
+			Type *st = base_type(t);
+			GB_ASSERT(st->Record.variant_parent != NULL);
+			t = st->Record.variant_parent;
+		}
 		GB_ASSERT(is_type_typed(t));
 		e->type = t;
 	}
 
+	e->parent_proc_decl = c->context.curr_proc_decl;
+
 	check_assignment(c, operand, e->type, context_name);
 	if (operand->mode == Addressing_Invalid) {
 		return NULL;
@@ -53,41 +72,43 @@ Type *check_init_variable(Checker *c, Entity *e, Operand *operand, String contex
 	return e->type;
 }
 
-void check_init_variables(Checker *c, Entity **lhs, isize lhs_count, AstNodeArray inits, String context_name) {
+void check_init_variables(Checker *c, Entity **lhs, isize lhs_count, Array<AstNode *> inits, String context_name) {
 	if ((lhs == NULL || lhs_count == 0) && inits.count == 0) {
 		return;
 	}
 
+
 	gbTempArenaMemory tmp = gb_temp_arena_memory_begin(&c->tmp_arena);
 
 	// NOTE(bill): If there is a bad syntax error, rhs > lhs which would mean there would need to be
 	// an extra allocation
-	ArrayOperand operands = {0};
-	array_init_reserve(&operands, c->tmp_allocator, 2*lhs_count);
+	Array<Operand> operands = {};
+	array_init(&operands, c->tmp_allocator, 2*lhs_count);
 	check_unpack_arguments(c, lhs_count, &operands, inits, true);
 
 	isize rhs_count = operands.count;
 	for_array(i, operands) {
-		if (operands.e[i].mode == Addressing_Invalid) {
+		if (operands[i].mode == Addressing_Invalid) {
 			rhs_count--;
 		}
 	}
 
 	isize max = gb_min(lhs_count, rhs_count);
 	for (isize i = 0; i < max; i++) {
-		check_init_variable(c, lhs[i], &operands.e[i], context_name);
+		check_init_variable(c, lhs[i], &operands[i], context_name);
 	}
 	if (rhs_count > 0 && lhs_count != rhs_count) {
 		error(lhs[0]->token, "Assignment count mismatch `%td` = `%td`", lhs_count, rhs_count);
 	}
 
+
 	gb_temp_arena_memory_end(tmp);
 }
 
 void check_init_constant(Checker *c, Entity *e, Operand *operand) {
 	if (operand->mode == Addressing_Invalid ||
-	    operand->type == t_invalid ||
-	    e->type == t_invalid) {
+		operand->type == t_invalid ||
+		e->type == t_invalid) {
 		if (e->type == NULL) {
 			e->type = t_invalid;
 		}
@@ -97,7 +118,7 @@ void check_init_constant(Checker *c, Entity *e, Operand *operand) {
 	if (operand->mode != Addressing_Constant) {
 		// TODO(bill): better error
 		gbString str = expr_to_string(operand->expr);
-		error_node(operand->expr, "`%s` is not a constant", str);
+		error(operand->expr, "`%s` is not a constant", str);
 		gb_string_free(str);
 		if (e->type == NULL) {
 			e->type = t_invalid;
@@ -106,7 +127,7 @@ void check_init_constant(Checker *c, Entity *e, Operand *operand) {
 	}
 	if (!is_type_constant_type(operand->type)) {
 		gbString type_str = type_to_string(operand->type);
-		error_node(operand->expr, "Invalid constant type: `%s`", type_str);
+		error(operand->expr, "Invalid constant type: `%s`", type_str);
 		gb_string_free(type_str);
 		if (e->type == NULL) {
 			e->type = t_invalid;
@@ -123,12 +144,15 @@ void check_init_constant(Checker *c, Entity *e, Operand *operand) {
 		return;
 	}
 
+	e->parent_proc_decl = c->context.curr_proc_decl;
+
 	e->Constant.value = operand->value;
 }
 
 void check_type_decl(Checker *c, Entity *e, AstNode *type_expr, Type *def) {
 	GB_ASSERT(e->type == NULL);
-	Type *named = make_type_named(c->allocator, e->token.string, NULL, e);
+	String name = e->token.string;
+	Type *named = make_type_named(c->allocator, name, NULL, e);
 	named->Named.type_name = e;
 	if (def != NULL && def->kind == Type_Named) {
 		def->Named.base = named;
@@ -137,7 +161,7 @@ void check_type_decl(Checker *c, Entity *e, AstNode *type_expr, Type *def) {
 
 	// gb_printf_err("%.*s %p\n", LIT(e->token.string), e);
 
-	Type *bt = check_type_extra(c, type_expr, named);
+	Type *bt = check_type(c, type_expr, named);
 	named->Named.base = base_type(bt);
 	if (named->Named.base == t_invalid) {
 		// gb_printf("check_type_decl: %s\n", type_to_string(named));
@@ -158,7 +182,7 @@ void check_const_decl(Checker *c, Entity *e, AstNode *type_expr, AstNode *init,
 		Type *t = check_type(c, type_expr);
 		if (!is_type_constant_type(t)) {
 			gbString str = type_to_string(t);
-			error_node(type_expr, "Invalid constant type `%s`", str);
+			error(type_expr, "Invalid constant type `%s`", str);
 			gb_string_free(str);
 			e->type = t_invalid;
 			return;
@@ -166,10 +190,11 @@ void check_const_decl(Checker *c, Entity *e, AstNode *type_expr, AstNode *init,
 		e->type = t;
 	}
 
-	Operand operand = {0};
+	Operand operand = {};
 	if (init != NULL) {
 		check_expr_or_type(c, &operand, init);
 	}
+#if 0
 	if (operand.mode == Addressing_Type) {
 		e->kind = Entity_TypeName;
 
@@ -178,11 +203,12 @@ void check_const_decl(Checker *c, Entity *e, AstNode *type_expr, AstNode *init,
 		check_type_decl(c, e, d->type_expr, named_type);
 		return;
 	}
+#endif
 
 	check_init_constant(c, e, &operand);
 
 	if (operand.mode == Addressing_Invalid ||
-	    base_type(operand.type) == t_invalid) {
+		base_type(operand.type) == t_invalid) {
 		error(e->token, "Invalid declaration type");
 	}
 }
@@ -202,12 +228,20 @@ bool are_signatures_similar_enough(Type *a_, Type *b_) {
 		return false;
 	}
 	for (isize i = 0; i < a->param_count; i++) {
-		Type *x = base_type(a->params->Tuple.variables[i]->type);
-		Type *y = base_type(b->params->Tuple.variables[i]->type);
+		Type *x = core_type(a->params->Tuple.variables[i]->type);
+		Type *y = core_type(b->params->Tuple.variables[i]->type);
 		if (is_type_pointer(x) && is_type_pointer(y)) {
 			continue;
 		}
 
+		if (is_type_integer(x) && is_type_integer(y)) {
+			GB_ASSERT(x->kind == Type_Basic);
+			GB_ASSERT(y->kind == Type_Basic);
+			if (x->Basic.size == y->Basic.size) {
+				continue;
+			}
+		}
+
 		if (!are_types_identical(x, y)) {
 			return false;
 		}
@@ -219,6 +253,14 @@ bool are_signatures_similar_enough(Type *a_, Type *b_) {
 			continue;
 		}
 
+		if (is_type_integer(x) && is_type_integer(y)) {
+			GB_ASSERT(x->kind == Type_Basic);
+			GB_ASSERT(y->kind == Type_Basic);
+			if (x->Basic.size == y->Basic.size) {
+				continue;
+			}
+		}
+
 		if (!are_types_identical(x, y)) {
 			return false;
 		}
@@ -227,110 +269,170 @@ bool are_signatures_similar_enough(Type *a_, Type *b_) {
 	return true;
 }
 
-void check_proc_lit(Checker *c, Entity *e, DeclInfo *d) {
-	GB_ASSERT(e->type == NULL);
-	if (d->proc_lit->kind != AstNode_ProcLit) {
-		// TOOD(bill): Better error message
-		error_node(d->proc_lit, "Expected a procedure to check");
+void init_entity_foreign_library(Checker *c, Entity *e) {
+	AstNode *ident = NULL;
+	Entity **foreign_library = NULL;
+
+	switch (e->kind) {
+	case Entity_Procedure:
+		ident = e->Procedure.foreign_library_ident;
+		foreign_library = &e->Procedure.foreign_library;
+		break;
+	case Entity_Variable:
+		ident = e->Variable.foreign_library_ident;
+		foreign_library = &e->Variable.foreign_library;
+		break;
+	default:
 		return;
 	}
 
-	Type *proc_type = make_type_proc(c->allocator, e->scope, NULL, 0, NULL, 0, false, ProcCC_Odin);
+	if (ident == NULL) {
+		error(e->token, "foreign entiies must declare which library they are from");
+	} else if (ident->kind != AstNode_Ident) {
+		error(ident, "foreign library names must be an identifier");
+	} else {
+		String name = ident->Ident.string;
+		Entity *found = scope_lookup_entity(c->context.scope, name);
+		if (found == NULL) {
+			if (name == "_") {
+				error(ident, "`_` cannot be used as a value type");
+			} else {
+				error(ident, "Undeclared name: %.*s", LIT(name));
+			}
+		} else if (found->kind != Entity_LibraryName) {
+			error(ident, "`%.*s` cannot be used as a library name", LIT(name));
+		} else {
+			// TODO(bill): Extra stuff to do with library names?
+			*foreign_library = found;
+			add_entity_use(c, ident, found);
+		}
+	}
+}
+
+void check_proc_decl(Checker *c, Entity *e, DeclInfo *d) {
+	GB_ASSERT(e->type == NULL);
+	if (d->proc_decl->kind != AstNode_ProcDecl) {
+		// TOOD(bill): Better error message
+		error(d->proc_decl, "Expected a procedure to check");
+		return;
+	}
+
+	Type *proc_type = e->type;
+	if (d->gen_proc_type != NULL) {
+		proc_type = d->gen_proc_type;
+	} else {
+		proc_type = make_type_proc(c->allocator, e->scope, NULL, 0, NULL, 0, false, ProcCC_Odin);
+	}
 	e->type = proc_type;
-	ast_node(pd, ProcLit, d->proc_lit);
+	ast_node(pd, ProcDecl, d->proc_decl);
 
 	check_open_scope(c, pd->type);
+	defer (check_close_scope(c));
+
 	check_procedure_type(c, proc_type, pd->type);
 
-	bool is_foreign      = (pd->tags & ProcTag_foreign)   != 0;
-	bool is_link_name    = (pd->tags & ProcTag_link_name) != 0;
-	bool is_export       = (pd->tags & ProcTag_export)    != 0;
-	bool is_inline       = (pd->tags & ProcTag_inline)    != 0;
-	bool is_no_inline    = (pd->tags & ProcTag_no_inline) != 0;
+	bool is_foreign         = (pd->tags & ProcTag_foreign)   != 0;
+	bool is_link_name       = (pd->tags & ProcTag_link_name) != 0;
+	bool is_export          = (pd->tags & ProcTag_export)    != 0;
+	bool is_inline          = (pd->tags & ProcTag_inline)    != 0;
+	bool is_no_inline       = (pd->tags & ProcTag_no_inline) != 0;
+	bool is_require_results = (pd->tags & ProcTag_require_results) != 0;
 
-	if ((d->scope->is_file || d->scope->is_global) &&
-	    str_eq(e->token.string, str_lit("main"))) {
-		if (proc_type != NULL) {
-			TypeProc *pt = &proc_type->Proc;
-			if (pt->param_count != 0 ||
-			    pt->result_count != 0) {
-				gbString str = type_to_string(proc_type);
-				error(e->token, "Procedure type of `main` was expected to be `proc()`, got %s", str);
-				gb_string_free(str);
-			}
+
+	TypeProc *pt = &proc_type->Proc;
+
+	if (d->scope->is_file && e->token.string == "main") {
+		if (pt->param_count != 0 ||
+		    pt->result_count != 0) {
+			gbString str = type_to_string(proc_type);
+			error(e->token, "Procedure type of `main` was expected to be `proc()`, got %s", str);
+			gb_string_free(str);
 		}
+		if (proc_type->Proc.calling_convention != ProcCC_Odin &&
+		    proc_type->Proc.calling_convention != ProcCC_Contextless) {
+			error(e->token, "Procedure `main` cannot have a custom calling convention");
+		}
+		proc_type->Proc.calling_convention = ProcCC_Contextless;
 	}
 
 	if (is_inline && is_no_inline) {
-		error_node(pd->type, "You cannot apply both `inline` and `no_inline` to a procedure");
+		error(pd->type, "You cannot apply both `inline` and `no_inline` to a procedure");
 	}
 
-	if (is_foreign && is_link_name) {
-		error_node(pd->type, "You cannot apply both `foreign` and `link_name` to a procedure");
-	} else if (is_foreign && is_export) {
-		error_node(pd->type, "You cannot apply both `foreign` and `export` to a procedure");
+	if (is_foreign && is_export) {
+		error(pd->type, "A foreign procedure cannot have an `export` tag");
 	}
 
 
+	if (pt->is_generic) {
+		if (pd->body == NULL) {
+			error(e->token, "Polymorphic procedures must have a body");
+		}
+
+		if (is_foreign) {
+			error(e->token, "A foreign procedures cannot be a polymorphic");
+			return;
+		}
+	}
+
 	if (pd->body != NULL) {
 		if (is_foreign) {
-			error_node(pd->body, "A procedure tagged as `#foreign` cannot have a body");
+			error(pd->body, "A foreign procedure cannot have a body");
+		}
+		if (proc_type->Proc.c_vararg) {
+			error(pd->body, "A procedure with a `#c_vararg` field cannot have a body");
 		}
 
 		d->scope = c->context.scope;
 
 		GB_ASSERT(pd->body->kind == AstNode_BlockStmt);
 		check_procedure_later(c, c->curr_ast_file, e->token, d, proc_type, pd->body, pd->tags);
+	} else if (!is_foreign) {
+		error(e->token, "Only a foreign procedure cannot have a body");
 	}
 
+	if (pt->result_count == 0 && is_require_results) {
+		error(pd->type, "`#require_results` is not needed on a procedure with no results");
+	} else {
+		pt->require_results = is_require_results;
+	}
+
+
+
 	if (is_foreign) {
-		MapEntity *fp = &c->info.foreigns;
 		String name = e->token.string;
-		if (pd->foreign_name.len > 0) {
-			name = pd->foreign_name;
+		if (pd->link_name.len > 0) {
+			name = pd->link_name;
 		}
-
-		AstNode *foreign_library = d->proc_lit->ProcLit.foreign_library;
-		if (foreign_library == NULL) {
-			error(e->token, "#foreign procedures must declare which library they are from");
-		} else if (foreign_library->kind != AstNode_Ident) {
-			error_node(foreign_library, "#foreign library names must be an identifier");
-		} else {
-			String name = foreign_library->Ident.string;
-			Entity *found = scope_lookup_entity(c->context.scope, name);
-			if (found == NULL) {
-				if (str_eq(name, str_lit("_"))) {
-					error_node(foreign_library, "`_` cannot be used as a value type");
-				} else {
-					error_node(foreign_library, "Undeclared name: %.*s", LIT(name));
-				}
-			} else if (found->kind != Entity_LibraryName) {
-				error_node(foreign_library, "`_` cannot be used as a library name");
-			} else {
-				// TODO(bill): Extra stuff to do with library names?
-				e->Procedure.foreign_library = found;
-				add_entity_use(c, foreign_library, found);
-			}
-		}
-
 		e->Procedure.is_foreign = true;
-		e->Procedure.foreign_name = name;
+		e->Procedure.link_name = name;
 
+		init_entity_foreign_library(c, e);
+
+
+		auto *fp = &c->info.foreigns;
 		HashKey key = hash_string(name);
-		Entity **found = map_entity_get(fp, key);
+		Entity **found = map_get(fp, key);
 		if (found) {
 			Entity *f = *found;
 			TokenPos pos = f->token.pos;
 			Type *this_type = base_type(e->type);
 			Type *other_type = base_type(f->type);
-			if (!are_signatures_similar_enough(this_type, other_type)) {
-				error_node(d->proc_lit,
-				           "Redeclaration of #foreign procedure `%.*s` with different type signatures\n"
-				           "\tat %.*s(%td:%td)",
-				           LIT(name), LIT(pos.file), pos.line, pos.column);
+			if (is_type_proc(this_type) && is_type_proc(other_type)) {
+				if (!are_signatures_similar_enough(this_type, other_type)) {
+					error(d->proc_decl,
+							   "Redeclaration of foreign procedure `%.*s` with different type signatures\n"
+							   "\tat %.*s(%td:%td)",
+							   LIT(name), LIT(pos.file), pos.line, pos.column);
+				}
+			} else if (!are_types_identical(this_type, other_type)) {
+				error(d->proc_decl,
+						   "Foreign entity `%.*s` previously declared elsewhere with a different type\n"
+						   "\tat %.*s(%td:%td)",
+						   LIT(name), LIT(pos.file), pos.line, pos.column);
 			}
 		} else {
-			map_entity_set(fp, key, e);
+			map_set(fp, key, e);
 		}
 	} else {
 		String name = e->token.string;
@@ -339,27 +441,25 @@ void check_proc_lit(Checker *c, Entity *e, DeclInfo *d) {
 		}
 
 		if (is_link_name || is_export) {
-			MapEntity *fp = &c->info.foreigns;
+			auto *fp = &c->info.foreigns;
 
 			e->Procedure.link_name = name;
 
 			HashKey key = hash_string(name);
-			Entity **found = map_entity_get(fp, key);
+			Entity **found = map_get(fp, key);
 			if (found) {
 				Entity *f = *found;
 				TokenPos pos = f->token.pos;
 				// TODO(bill): Better error message?
-				error_node(d->proc_lit,
-				           "Non unique linking name for procedure `%.*s`\n"
-				           "\tother at %.*s(%td:%td)",
-				           LIT(name), LIT(pos.file), pos.line, pos.column);
+				error(d->proc_decl,
+						   "Non unique linking name for procedure `%.*s`\n"
+						   "\tother at %.*s(%td:%td)",
+						   LIT(name), LIT(pos.file), pos.line, pos.column);
 			} else {
-				map_entity_set(fp, key, e);
+				map_set(fp, key, e);
 			}
 		}
 	}
-
-	check_close_scope(c);
 }
 
 void check_var_decl(Checker *c, Entity *e, Entity **entities, isize entity_count, AstNode *type_expr, AstNode *init_expr) {
@@ -373,7 +473,34 @@ void check_var_decl(Checker *c, Entity *e, Entity **entities, isize entity_count
 	e->flags |= EntityFlag_Visited;
 
 	if (type_expr != NULL) {
-		e->type = check_type_extra(c, type_expr, NULL);
+		e->type = check_type(c, type_expr);
+	}
+
+
+	if (e->Variable.is_foreign) {
+		if (init_expr != NULL) {
+			error(e->token, "A foreign variable declaration cannot have a default value");
+		}
+		init_entity_foreign_library(c, e);
+
+		String name = e->token.string;
+		auto *fp = &c->info.foreigns;
+		HashKey key = hash_string(name);
+		Entity **found = map_get(fp, key);
+		if (found) {
+			Entity *f = *found;
+			TokenPos pos = f->token.pos;
+			Type *this_type = base_type(e->type);
+			Type *other_type = base_type(f->type);
+			if (!are_types_identical(this_type, other_type)) {
+				error(e->token,
+				      "Foreign entity `%.*s` previously declared elsewhere with a different type\n"
+				      "\tat %.*s(%td:%td)",
+				      LIT(name), LIT(pos.file), pos.line, pos.column);
+			}
+		} else {
+			map_set(fp, key, e);
+		}
 	}
 
 	if (init_expr == NULL) {
@@ -385,7 +512,7 @@ void check_var_decl(Checker *c, Entity *e, Entity **entities, isize entity_count
 
 	if (entities == NULL || entity_count == 1) {
 		GB_ASSERT(entities == NULL || entities[0] == e);
-		Operand operand = {0};
+		Operand operand = {};
 		check_expr(c, &operand, init_expr);
 		check_init_variable(c, e, &operand, str_lit("variable declaration"));
 	}
@@ -396,73 +523,21 @@ void check_var_decl(Checker *c, Entity *e, Entity **entities, isize entity_count
 		}
 	}
 
-	AstNodeArray inits;
-	array_init_reserve(&inits, c->allocator, 1);
+
+	Array<AstNode *> inits;
+	array_init(&inits, c->allocator, 1);
 	array_add(&inits, init_expr);
 	check_init_variables(c, entities, entity_count, inits, str_lit("variable declaration"));
 }
 
-
-void check_alias_decl(Checker *c, Entity *e, AstNode *expr) {
-	GB_ASSERT(e->type == NULL);
-	GB_ASSERT(e->kind == Entity_Alias);
-
-	if (e->flags & EntityFlag_Visited) {
-		e->type = t_invalid;
-		return;
-	}
-	e->flags |= EntityFlag_Visited;
-	e->type = t_invalid;
-
-	expr = unparen_expr(expr);
-
-	if (expr->kind == AstNode_Alias) {
-		error_node(expr, "#alias of an #alias is not allowed");
-		return;
-	}
-
-	if (expr->kind == AstNode_Ident) {
-		Operand o = {0};
-		Entity *f = check_ident(c, &o, expr, NULL, NULL, true);
-		if (f != NULL) {
-			e->Alias.original = f;
-			e->type = f->type;
-		}
-		return;
-	} else if (expr->kind == AstNode_SelectorExpr) {
-		Operand o = {0};
-		Entity *f = check_selector(c, &o, expr, NULL);
-		if (f != NULL) {
-			e->Alias.original = f;
-			e->type = f->type;
-		}
-		return;
-	}
-
-	Operand o = {0};
-	check_expr_or_type(c, &o, expr);
-	if (o.mode == Addressing_Invalid) {
-		return;
-	}
-	switch (o.mode) {
-	case Addressing_Type:
-		e->type = o.type;
-		break;
-	default:
-		error_node(expr, "#alias declarations only allow types");
-	}
-}
-
 void check_entity_decl(Checker *c, Entity *e, DeclInfo *d, Type *named_type) {
 	if (e->type != NULL) {
 		return;
 	}
 
 	if (d == NULL) {
-		DeclInfo **found = map_decl_info_get(&c->info.entities, hash_pointer(e));
-		if (found) {
-			d = *found;
-		} else {
+		d = decl_info_of_entity(&c->info, e);
+		if (d == NULL) {
 			// TODO(bill): Err here?
 			e->type = t_invalid;
 			set_base_type(named_type, t_invalid);
@@ -475,6 +550,8 @@ void check_entity_decl(Checker *c, Entity *e, DeclInfo *d, Type *named_type) {
 	c->context.scope = d->scope;
 	c->context.decl  = d;
 
+	e->parent_proc_decl = c->context.curr_proc_decl;
+
 	switch (e->kind) {
 	case Entity_Variable:
 		check_var_decl(c, e, d->entities, d->entity_count, d->type_expr, d->init_expr);
@@ -486,10 +563,7 @@ void check_entity_decl(Checker *c, Entity *e, DeclInfo *d, Type *named_type) {
 		check_type_decl(c, e, d->type_expr, named_type);
 		break;
 	case Entity_Procedure:
-		check_proc_lit(c, e, d);
-		break;
-	case Entity_Alias:
-		check_alias_decl(c, e, d->init_expr);
+		check_proc_decl(c, e, d);
 		break;
 	}
 
@@ -499,9 +573,12 @@ void check_entity_decl(Checker *c, Entity *e, DeclInfo *d, Type *named_type) {
 
 
 void check_proc_body(Checker *c, Token token, DeclInfo *decl, Type *type, AstNode *body) {
+	if (body == NULL) {
+		return;
+	}
 	GB_ASSERT(body->kind == AstNode_BlockStmt);
 
-	String proc_name = {0};
+	String proc_name = {};
 	if (token.kind == Token_Ident) {
 		proc_name = token.string;
 	} else {
@@ -513,25 +590,27 @@ void check_proc_body(Checker *c, Token token, DeclInfo *decl, Type *type, AstNod
 	c->context.scope = decl->scope;
 	c->context.decl = decl;
 	c->context.proc_name = proc_name;
-
+	c->context.curr_proc_decl = decl;
 
 	GB_ASSERT(type->kind == Type_Proc);
 	if (type->Proc.param_count > 0) {
 		TypeTuple *params = &type->Proc.params->Tuple;
 		for (isize i = 0; i < params->variable_count; i++) {
 			Entity *e = params->variables[i];
-			GB_ASSERT(e->kind == Entity_Variable);
-			if (!(e->flags & EntityFlag_Anonymous)) {
+			if (e->kind != Entity_Variable) {
+				continue;
+			}
+			if (!(e->flags & EntityFlag_Using)) {
 				continue;
 			}
 			bool is_immutable = e->Variable.is_immutable;
 			String name = e->token.string;
 			Type *t = base_type(type_deref(e->type));
 			if (is_type_struct(t) || is_type_raw_union(t)) {
-				Scope **found = map_scope_get(&c->info.scopes, hash_pointer(t->Record.node));
-				GB_ASSERT(found != NULL);
-				for_array(i, (*found)->elements.entries) {
-					Entity *f = (*found)->elements.entries.e[i].value;
+				Scope *scope = scope_of_node(&c->info, t->Record.node);
+				GB_ASSERT(scope != NULL);
+				for_array(i, scope->elements.entries) {
+					Entity *f = scope->elements.entries[i].value;
 					if (f->kind == Entity_Variable) {
 						Entity *uvar = make_entity_using_variable(c->allocator, e, f->token, f->type);
 						uvar->Variable.is_immutable = is_immutable;
@@ -552,7 +631,7 @@ void check_proc_body(Checker *c, Token token, DeclInfo *decl, Type *type, AstNod
 	push_procedure(c, type);
 	{
 		ast_node(bs, BlockStmt, body);
-		check_stmt_list(c, bs->stmts, 0);
+		check_stmt_list(c, bs->stmts, Stmt_CheckScopeDecls);
 		if (type->Proc.result_count > 0) {
 			if (!check_is_terminating(body)) {
 				if (token.kind == Token_Ident) {
@@ -567,8 +646,16 @@ void check_proc_body(Checker *c, Token token, DeclInfo *decl, Type *type, AstNod
 
 
 	check_scope_usage(c, c->context.scope);
-
 	c->context = old_context;
+
+	if (decl->parent != NULL) {
+		// NOTE(bill): Add the dependencies from the procedure literal (lambda)
+		for_array(i, decl->deps.entries) {
+			HashKey key = decl->deps.entries[i].key;
+			Entity *e = cast(Entity *)key.ptr;
+			map_set(&decl->parent->deps, key, true);
+		}
+	}
 }
 
 

src/common.c

@@ -1,151 +0,0 @@
-#define GB_NO_DEFER
-#define GB_IMPLEMENTATION
-#include "gb/gb.h"
-
-gbAllocator heap_allocator(void) {
-	return gb_heap_allocator();
-}
-
-#include "unicode.c"
-#include "string.c"
-#include "array.c"
-
-gb_global String global_module_path = {0};
-gb_global bool global_module_path_set = false;
-
-gb_global gbScratchMemory scratch_memory = {0};
-
-void init_scratch_memory(isize size) {
-	void *memory = gb_alloc(heap_allocator(), size);
-	gb_scratch_memory_init(&scratch_memory, memory, size);
-}
-
-gbAllocator scratch_allocator(void) {
-	return gb_scratch_allocator(&scratch_memory);
-}
-
-
-i64 next_pow2(i64 n) {
-	if (n <= 0) {
-		return 0;
-	}
-	n--;
-	n |= n >> 1;
-	n |= n >> 2;
-	n |= n >> 4;
-	n |= n >> 8;
-	n |= n >> 16;
-	n |= n >> 32;
-	n++;
-	return n;
-}
-
-i64 prev_pow2(i64 n) {
-	if (n <= 0) {
-		return 0;
-	}
-	n |= n >> 1;
-	n |= n >> 2;
-	n |= n >> 4;
-	n |= n >> 8;
-	n |= n >> 16;
-	n |= n >> 32;
-	return n - (n >> 1);
-}
-
-i16 f32_to_f16(f32 value) {
-	union { u32 i; f32 f; } v;
-	i32 i, s, e, m;
-
-	v.f = value;
-	i = (i32)v.i;
-
-	s =  (i >> 16) & 0x00008000;
-	e = ((i >> 23) & 0x000000ff) - (127 - 15);
-	m =   i        & 0x007fffff;
-
-
-	if (e <= 0) {
-		if (e < -10) return cast(i16)s;
-		m = (m | 0x00800000) >> (1 - e);
-
-		if (m & 0x00001000)
-			m += 0x00002000;
-
-		return cast(i16)(s | (m >> 13));
-	} else if (e == 0xff - (127 - 15)) {
-		if (m == 0) {
-			return cast(i16)(s | 0x7c00); /* NOTE(bill): infinity */
-		} else {
-			/* NOTE(bill): NAN */
-			m >>= 13;
-			return cast(i16)(s | 0x7c00 | m | (m == 0));
-		}
-	} else {
-		if (m & 0x00001000) {
-			m += 0x00002000;
-			if (m & 0x00800000) {
-				m = 0;
-				e += 1;
-			}
-		}
-
-		if (e > 30) {
-			float volatile f = 1e12f;
-			int j;
-			for (j = 0; j < 10; j++) {
-				f *= f; /* NOTE(bill): Cause overflow */
-			}
-
-			return cast(i16)(s | 0x7c00);
-		}
-
-		return cast(i16)(s | (e << 10) | (m >> 13));
-	}
-}
-
-
-
-#define for_array(index_, array_) for (isize index_ = 0; index_ < (array_).count; index_++)
-
-
-// Doubly Linked Lists
-
-#define DLIST_SET(curr_element, next_element)  do { \
-	(curr_element)->next = (next_element);             \
-	(curr_element)->next->prev = (curr_element);       \
-	(curr_element) = (curr_element)->next;             \
-} while (0)
-
-#define DLIST_APPEND(root_element, curr_element, next_element) do { \
-	if ((root_element) == NULL) { \
-		(root_element) = (curr_element) = (next_element); \
-	} else { \
-		DLIST_SET(curr_element, next_element); \
-	} \
-} while (0)
-
-////////////////////////////////////////////////////////////////
-//
-// Generic Data Structures
-//
-////////////////////////////////////////////////////////////////
-
-typedef Array(i32)   Array_i32;
-typedef Array(isize) Array_isize;
-
-
-#define MAP_TYPE String
-#define MAP_PROC map_string_
-#define MAP_NAME MapString
-#include "map.c"
-
-#define MAP_TYPE bool
-#define MAP_PROC map_bool_
-#define MAP_NAME MapBool
-#include "map.c"
-
-#define MAP_TYPE isize
-#define MAP_PROC map_isize_
-#define MAP_NAME MapIsize
-#include "map.c"

src/common.cpp

@@ -0,0 +1,311 @@
+#if defined(GB_SYSTEM_UNIX)
+// Required for intrinsics on GCC
+#include <xmmintrin.h>
+#endif
+
+#define GB_IMPLEMENTATION
+#include "gb/gb.h"
+
+
+#include <wchar.h>
+#include <stdio.h>
+
+#include <math.h>
+
+
+gbAllocator heap_allocator(void) {
+	return gb_heap_allocator();
+}
+
+#include "unicode.cpp"
+#include "string.cpp"
+#include "array.cpp"
+#include "integer128.cpp"
+#include "murmurhash3.cpp"
+
+u128 fnv128a(void const *data, isize len) {
+	u128 o = u128_lo_hi(0x13bull, 0x1000000ull);
+	u128 h = u128_lo_hi(0x62b821756295c58dull, 0x6c62272e07bb0142ull);
+	u8 const *bytes = cast(u8 const *)data;
+	for (isize i = 0; i < len; i++) {
+		h.lo ^= bytes[i];
+		h = h * o;
+	}
+	return h;
+}
+
+#include "map.cpp"
+
+
+
+gb_global String global_module_path = {0};
+gb_global bool global_module_path_set = false;
+
+gb_global gbScratchMemory scratch_memory = {0};
+
+void init_scratch_memory(isize size) {
+	void *memory = gb_alloc(heap_allocator(), size);
+	gb_scratch_memory_init(&scratch_memory, memory, size);
+}
+
+gbAllocator scratch_allocator(void) {
+	return gb_scratch_allocator(&scratch_memory);
+}
+
+
+struct DynamicArenaBlock {
+	DynamicArenaBlock *prev;
+	DynamicArenaBlock *next;
+	u8 *               start;
+	isize              count;
+	isize              capacity;
+
+	gbVirtualMemory    vm;
+};
+
+struct DynamicArena {
+	DynamicArenaBlock *start_block;
+	DynamicArenaBlock *current_block;
+	isize              block_size;
+};
+
+DynamicArenaBlock *add_dynamic_arena_block(DynamicArena *a) {
+	GB_ASSERT(a != NULL);
+	GB_ASSERT(a->block_size > 0);
+
+	gbVirtualMemory vm = gb_vm_alloc(NULL, a->block_size);
+	DynamicArenaBlock *block = cast(DynamicArenaBlock *)vm.data;
+
+	u8 *start = cast(u8 *)gb_align_forward(cast(u8 *)(block + 1), GB_DEFAULT_MEMORY_ALIGNMENT);
+	u8 *end = cast(u8 *)vm.data + vm.size;
+
+	block->vm       = vm;
+	block->start    = start;
+	block->count    = 0;
+	block->capacity = end-start;
+
+	if (a->current_block != NULL) {
+		a->current_block->next = block;
+		block->prev = a->current_block;
+	}
+	a->current_block = block;
+	return block;
+}
+
+void init_dynamic_arena(DynamicArena *a, isize block_size) {
+	isize size = gb_size_of(DynamicArenaBlock) + block_size;
+	size = cast(isize)gb_align_forward(cast(void *)cast(uintptr)size, GB_DEFAULT_MEMORY_ALIGNMENT);
+	a->block_size = size;
+	a->start_block = add_dynamic_arena_block(a);
+}
+
+void destroy_dynamic_arena(DynamicArena *a) {
+	DynamicArenaBlock *b = a->current_block;
+	while (b != NULL) {
+		gbVirtualMemory vm = b->vm;
+		b = b->prev;
+		gb_vm_free(b->vm);
+	}
+}
+
+GB_ALLOCATOR_PROC(dynamic_arena_allocator_proc) {
+	DynamicArena *a = cast(DynamicArena *)allocator_data;
+	void *ptr = NULL;
+
+	switch (type) {
+	case gbAllocation_Alloc: {
+
+	} break;
+
+	case gbAllocation_Free: {
+	} break;
+
+	case gbAllocation_Resize: {
+	} break;
+
+	case gbAllocation_FreeAll:
+		GB_PANIC("free_all is not supported by this allocator");
+		break;
+	}
+
+	return ptr;
+}
+
+gbAllocator dynamic_arena_allocator(DynamicArena *a) {
+	gbAllocator allocator = {dynamic_arena_allocator_proc, a};
+	return allocator;
+}
+
+
+
+
+i64 next_pow2(i64 n) {
+	if (n <= 0) {
+		return 0;
+	}
+	n--;
+	n |= n >> 1;
+	n |= n >> 2;
+	n |= n >> 4;
+	n |= n >> 8;
+	n |= n >> 16;
+	n |= n >> 32;
+	n++;
+	return n;
+}
+
+i64 prev_pow2(i64 n) {
+	if (n <= 0) {
+		return 0;
+	}
+	n |= n >> 1;
+	n |= n >> 2;
+	n |= n >> 4;
+	n |= n >> 8;
+	n |= n >> 16;
+	n |= n >> 32;
+	return n - (n >> 1);
+}
+
+i16 f32_to_f16(f32 value) {
+	union { u32 i; f32 f; } v;
+	i32 i, s, e, m;
+
+	v.f = value;
+	i = (i32)v.i;
+
+	s =  (i >> 16) & 0x00008000;
+	e = ((i >> 23) & 0x000000ff) - (127 - 15);
+	m =   i        & 0x007fffff;
+
+
+	if (e <= 0) {
+		if (e < -10) return cast(i16)s;
+		m = (m | 0x00800000) >> (1 - e);
+
+		if (m & 0x00001000)
+			m += 0x00002000;
+
+		return cast(i16)(s | (m >> 13));
+	} else if (e == 0xff - (127 - 15)) {
+		if (m == 0) {
+			return cast(i16)(s | 0x7c00); /* NOTE(bill): infinity */
+		} else {
+			/* NOTE(bill): NAN */
+			m >>= 13;
+			return cast(i16)(s | 0x7c00 | m | (m == 0));
+		}
+	} else {
+		if (m & 0x00001000) {
+			m += 0x00002000;
+			if (m & 0x00800000) {
+				m = 0;
+				e += 1;
+			}
+		}
+
+		if (e > 30) {
+			float volatile f = 1e12f;
+			int j;
+			for (j = 0; j < 10; j++) {
+				f *= f; /* NOTE(bill): Cause overflow */
+			}
+
+			return cast(i16)(s | 0x7c00);
+		}
+
+		return cast(i16)(s | (e << 10) | (m >> 13));
+	}
+}
+
+f64 gb_sqrt(f64 x) {
+	return sqrt(x);
+}
+
+
+
+#define for_array(index_, array_) for (isize index_ = 0; index_ < (array_).count; index_++)
+
+
+// Doubly Linked Lists
+
+#define DLIST_SET(curr_element, next_element)  do { \
+	(curr_element)->next = (next_element);             \
+	(curr_element)->next->prev = (curr_element);       \
+	(curr_element) = (curr_element)->next;             \
+} while (0)
+
+#define DLIST_APPEND(root_element, curr_element, next_element) do { \
+	if ((root_element) == NULL) { \
+		(root_element) = (curr_element) = (next_element); \
+	} else { \
+		DLIST_SET(curr_element, next_element); \
+	} \
+} while (0)
+
+
+
+#if defined(GB_SYSTEM_WINDOWS)
+
+wchar_t **command_line_to_wargv(wchar_t *cmd_line, int *_argc) {
+	u32 i, j;
+
+	u32 len = string16_len(cmd_line);
+	i = ((len+2)/2)*gb_size_of(void *) + gb_size_of(void *);
+
+	wchar_t **argv = cast(wchar_t **)GlobalAlloc(GMEM_FIXED, i + (len+2)*gb_size_of(wchar_t));
+	wchar_t *_argv = cast(wchar_t *)((cast(u8 *)argv)+i);
+
+	u32 argc = 0;
+	argv[argc] = _argv;
+	bool in_quote = false;
+	bool in_text = false;
+	bool in_space = true;
+	i = 0;
+	j = 0;
+
+	for (;;) {
+		wchar_t a = cmd_line[i];
+		if (a == 0) {
+			break;
+		}
+		if (in_quote) {
+			if (a == '\"') {
+				in_quote = false;
+			} else {
+				_argv[j++] = a;
+			}
+		} else {
+			switch (a) {
+			case '\"':
+				in_quote = true;
+				in_text = true;
+				if (in_space) argv[argc++] = _argv+j;
+				in_space = false;
+				break;
+			case ' ':
+			case '\t':
+			case '\n':
+			case '\r':
+				if (in_text) _argv[j++] = '\0';
+				in_text = false;
+				in_space = true;
+				break;
+			default:
+				in_text = true;
+				if (in_space) argv[argc++] = _argv+j;
+				_argv[j++] = a;
+				in_space = false;
+				break;
+			}
+		}
+		i++;
+	}
+	_argv[j] = '\0';
+	argv[argc] = NULL;
+
+	if (_argc) *_argc = argc;
+	return argv;
+}
+
+#endif

src/docs.cpp

@@ -0,0 +1,136 @@
+// Generates Documentation
+
+gbString expr_to_string(AstNode *expression);
+
+String alloc_comment_group_string(gbAllocator a, CommentGroup g) {
+	isize len = 0;
+	for_array(i, g.list) {
+		String comment = g.list[i].string;
+		len += comment.len;
+		len += 1; // for \n
+	}
+	if (len == 0) {
+		return make_string(NULL, 0);
+	}
+
+	u8 *text = gb_alloc_array(a, u8, len+1);
+	len = 0;
+	for_array(i, g.list) {
+		String comment = g.list[i].string;
+		if (comment[1] == '/') {
+			comment.text += 2;
+			comment.len  -= 2;
+		} else if (comment[1] == '*') {
+			comment.text += 2;
+			comment.len  -= 4;
+		}
+		comment = string_trim_whitespace(comment);
+		gb_memmove(text+len, comment.text, comment.len);
+		len += comment.len;
+		text[len++] = '\n';
+	}
+	return make_string(text, len);
+}
+
+void print_type_spec(AstNode *spec) {
+	ast_node(ts, TypeSpec, spec);
+	GB_ASSERT(ts->name->kind == AstNode_Ident);
+	String name = ts->name->Ident.string;
+	if (name.len == 0) {
+		return;
+	}
+	if (name[0] == '_') {
+		return;
+	}
+	gb_printf("type %.*s\n", LIT(name));
+}
+
+void print_proc_decl(AstNodeProcDecl *pd) {
+	GB_ASSERT(pd->name->kind == AstNode_Ident);
+	String name = pd->name->Ident.string;
+	if (name.len == 0) {
+		return;
+	}
+	if (name[0] == '_') {
+		return;
+	}
+
+	String docs = alloc_comment_group_string(heap_allocator(), pd->docs);
+	defer (gb_free(heap_allocator(), docs.text));
+
+	if (docs.len > 0) {
+		gb_file_write(&gb__std_files[gbFileStandard_Output], docs.text, docs.len);
+	} else {
+		return;
+	}
+
+	ast_node(proc_type, ProcType, pd->type);
+
+	gbString params = expr_to_string(proc_type->params);
+	defer (gb_string_free(params));
+	gb_printf("proc %.*s(%s)", LIT(name), params);
+	if (proc_type->results != NULL)  {
+		ast_node(fl, FieldList, proc_type->results);
+		isize count = fl->list.count;
+		if (count > 0) {
+			gbString results = expr_to_string(proc_type->results);
+			defer (gb_string_free(results));
+			gb_printf(" -> ");
+			if (count != 1) {
+				gb_printf("(");
+			}
+			gb_printf("%s", results);
+			if (count != 1) {
+				gb_printf(")");
+			}
+		}
+	}
+	gb_printf("\n\n");
+}
+
+void print_declaration(AstNode *decl) {
+	switch (decl->kind) {
+	case_ast_node(gd, GenDecl, decl);
+		for_array(spec_index, gd->specs) {
+			AstNode *spec = gd->specs[spec_index];
+			switch(gd->token.kind) {
+			case Token_var:
+				break;
+			case Token_const:
+				break;
+			case Token_type:
+				// print_type_spec(spec);
+				break;
+			case Token_import:
+			case Token_import_load:
+				break;
+			case Token_foreign_library:
+			case Token_foreign_system_library:
+				break;
+			}
+		}
+	case_end;
+
+	case_ast_node(pd, ProcDecl, decl);
+		print_proc_decl(pd);
+	case_end;
+
+	case_ast_node(fb, ForeignBlockDecl, decl);
+		// TODO(bill)
+	case_end;
+	}
+}
+
+void generate_documentation(Parser *parser) {
+	for_array(file_index, parser->files) {
+		AstFile *file = &parser->files[file_index];
+		Tokenizer *tokenizer = &file->tokenizer;
+		String fullpath = tokenizer->fullpath;
+		gb_printf("%.*s\n", LIT(fullpath));
+
+		for_array(decl_index, file->decls) {
+			AstNode *decl = file->decls[decl_index];
+			print_declaration(decl);
+		}
+	}
+}

src/entity.cpp

@@ -1,6 +1,7 @@
-typedef struct Scope Scope;
-typedef struct Checker Checker;
-typedef struct Type Type;
+struct Scope;
+struct Checker;
+struct Type;
+struct DeclInfo;
 // typedef enum BuiltinProcId BuiltinProcId;
 
 
@@ -13,16 +14,15 @@ typedef struct Type Type;
 	ENTITY_KIND(Builtin) \
 	ENTITY_KIND(ImportName) \
 	ENTITY_KIND(LibraryName) \
-	ENTITY_KIND(Alias) \
 	ENTITY_KIND(Nil) \
 	ENTITY_KIND(Label)
 
-typedef enum EntityKind {
+enum EntityKind {
 #define ENTITY_KIND(k) GB_JOIN2(Entity_, k),
 	ENTITY_KINDS
 #undef ENTITY_KIND
 	Entity_Count,
-} EntityKind;
+};
 
 String const entity_strings[] = {
 #define ENTITY_KIND(k) {cast(u8 *)#k, gb_size_of(#k)-1},
@@ -30,35 +30,48 @@ String const entity_strings[] = {
 #undef ENTITY_KIND
 };
 
-typedef enum EntityFlag {
-	EntityFlag_Visited    = 1<<0,
-	EntityFlag_Used       = 1<<1,
-	EntityFlag_Anonymous  = 1<<2,
-	EntityFlag_Field      = 1<<3,
-	EntityFlag_Param      = 1<<4,
-	EntityFlag_VectorElem = 1<<5,
-	EntityFlag_Ellipsis   = 1<<6,
-	EntityFlag_NoAlias    = 1<<7,
-	EntityFlag_TypeField  = 1<<8,
-} EntityFlag;
+enum EntityFlag {
+	EntityFlag_Visited       = 1<<0,
+	EntityFlag_Used          = 1<<1,
+	EntityFlag_Using         = 1<<2,
+	EntityFlag_Field         = 1<<3,
+	EntityFlag_Param         = 1<<4,
+	EntityFlag_VectorElem    = 1<<5,
+	EntityFlag_Ellipsis      = 1<<6,
+	EntityFlag_NoAlias       = 1<<7,
+	EntityFlag_TypeField     = 1<<8,
+	EntityFlag_Value         = 1<<9,
+	EntityFlag_Sret          = 1<<10,
+	EntityFlag_BitFieldValue = 1<<11,
+
+	EntityFlag_CVarArg       = 1<<20,
+
+};
 
 // Zero value means the overloading process is not yet done
-typedef enum OverloadKind {
+enum OverloadKind {
 	Overload_Unknown,
 	Overload_No,
 	Overload_Yes,
-} OverloadKind;
+};
+
+enum EntityAliasKind {
+	EntityAlias_Invalid,
+	EntityAlias_Type,
+	EntityAlias_Entity,
+};
 
 
 // An Entity is a named "thing" in the language
-typedef struct Entity Entity;
 struct Entity {
 	EntityKind kind;
+	u64        id;
 	u32        flags;
 	Token      token;
 	Scope *    scope;
 	Type *     type;
 	AstNode *  identifier; // Can be NULL
+	DeclInfo * parent_proc_decl; // NULL if in file/global scope
 
 	// TODO(bill): Cleanup how `using` works for entities
 	Entity *   using_parent;
@@ -69,19 +82,27 @@ struct Entity {
 			ExactValue value;
 		} Constant;
 		struct {
-			i32  field_index;
-			i32  field_src_index;
-			bool is_immutable;
-			bool is_thread_local;
+			i32        field_index;
+			i32        field_src_index;
+			ExactValue default_value;
+			bool       default_is_nil;
+			bool       default_is_location;
+			bool       is_immutable;
+			bool       is_thread_local;
+			bool       is_foreign;
+			Entity *   foreign_library;
+			AstNode *  foreign_library_ident;
 		} Variable;
-		i32 TypeName;
 		struct {
-			bool         is_foreign;
-			String       foreign_name;
-			Entity *     foreign_library;
+			bool is_type_alias;
+		} TypeName;
+		struct {
+			OverloadKind overload_kind;
 			String       link_name;
 			u64          tags;
-			OverloadKind overload_kind;
+			bool         is_foreign;
+			Entity *     foreign_library;
+			AstNode *    foreign_library_ident;
 		} Procedure;
 		struct {
 			i32 id;
@@ -97,9 +118,6 @@ struct Entity {
 			String name;
 			bool   used;
 		} LibraryName;
-		struct {
-			Entity *original;
-		} Alias;
 		i32 Nil;
 		struct {
 			String name;
@@ -132,9 +150,10 @@ bool is_entity_exported(Entity *e) {
 	if (name.len == 0) {
 		return false;
 	}
-	return name.text[0] != '_';
+	return name[0] != '_';
 }
 
+gb_global u64 global_entity_id = 0;
 
 Entity *alloc_entity(gbAllocator a, EntityKind kind, Scope *scope, Token token, Type *type) {
 	Entity *entity = gb_alloc_item(a, Entity);
@@ -142,6 +161,7 @@ Entity *alloc_entity(gbAllocator a, EntityKind kind, Scope *scope, Token token,
 	entity->scope  = scope;
 	entity->token  = token;
 	entity->type   = type;
+	entity->id     = ++global_entity_id;
 	return entity;
 }
 
@@ -156,7 +176,8 @@ Entity *make_entity_using_variable(gbAllocator a, Entity *parent, Token token, T
 	token.pos = parent->token.pos;
 	Entity *entity = alloc_entity(a, Entity_Variable, parent->scope, token, type);
 	entity->using_parent = parent;
-	entity->flags |= EntityFlag_Anonymous;
+	entity->parent_proc_decl = parent->parent_proc_decl;
+	entity->flags |= EntityFlag_Using;
 	return entity;
 }
 
@@ -172,20 +193,20 @@ Entity *make_entity_type_name(gbAllocator a, Scope *scope, Token token, Type *ty
 	return entity;
 }
 
-Entity *make_entity_param(gbAllocator a, Scope *scope, Token token, Type *type, bool anonymous, bool is_immutable) {
+Entity *make_entity_param(gbAllocator a, Scope *scope, Token token, Type *type, bool is_using, bool is_immutable) {
 	Entity *entity = make_entity_variable(a, scope, token, type, is_immutable);
 	entity->flags |= EntityFlag_Used;
-	if (anonymous) entity->flags |= EntityFlag_Anonymous;
+	if (is_using) entity->flags |= EntityFlag_Using;
 	entity->flags |= EntityFlag_Param;
 	return entity;
 }
 
-Entity *make_entity_field(gbAllocator a, Scope *scope, Token token, Type *type, bool anonymous, i32 field_src_index) {
+Entity *make_entity_field(gbAllocator a, Scope *scope, Token token, Type *type, bool is_using, i32 field_src_index) {
 	Entity *entity = make_entity_variable(a, scope, token, type, false);
 	entity->Variable.field_src_index = field_src_index;
 	entity->Variable.field_index = field_src_index;
+	if (is_using) entity->flags |= EntityFlag_Using;
 	entity->flags |= EntityFlag_Field;
-	entity->flags |= EntityFlag_Anonymous*(anonymous != 0);
 	return entity;
 }
 
@@ -227,12 +248,9 @@ Entity *make_entity_library_name(gbAllocator a, Scope *scope, Token token, Type
 	return entity;
 }
 
-Entity *make_entity_alias(gbAllocator a, Scope *scope, Token token, Type *type,
-                          Entity *original) {
-	Entity *entity = alloc_entity(a, Entity_Alias, scope, token, type);
-	entity->Alias.original = original;
-	return entity;
-}
+
+
+
 
 Entity *make_entity_nil(gbAllocator a, String name, Type *type) {
 	Token token = make_token_ident(name);

src/exact_value.cpp

@@ -3,32 +3,41 @@
 // TODO(bill): Big numbers
 // IMPORTANT TODO(bill): This needs to be completely fixed!!!!!!!!
 
-typedef struct AstNode AstNode;
+struct AstNode;
+struct HashKey;
 
-typedef enum ExactValueKind {
+struct Complex128 {
+	f64 real, imag;
+};
+
+enum ExactValueKind {
 	ExactValue_Invalid,
 
 	ExactValue_Bool,
 	ExactValue_String,
 	ExactValue_Integer,
 	ExactValue_Float,
+	ExactValue_Complex,
 	ExactValue_Pointer,
 	ExactValue_Compound, // TODO(bill): Is this good enough?
 
 	ExactValue_Count,
-} ExactValueKind;
+};
 
-typedef struct ExactValue {
+struct ExactValue {
 	ExactValueKind kind;
 	union {
-		bool     value_bool;
-		String   value_string;
-		i64      value_integer; // NOTE(bill): This must be an integer and not a pointer
-		f64      value_float;
-		i64      value_pointer;
-		AstNode *value_compound;
+		bool          value_bool;
+		String        value_string;
+		i128          value_integer; // NOTE(bill): This must be an integer and not a pointer
+		f64           value_float;
+		i64           value_pointer;
+		Complex128    value_complex;
+		AstNode *     value_compound;
 	};
-} ExactValue;
+};
+
+gb_global ExactValue const empty_exact_value = {};
 
 HashKey hash_exact_value(ExactValue v) {
 	return hashing_proc(&v, gb_size_of(ExactValue));
@@ -54,11 +63,22 @@ ExactValue exact_value_string(String string) {
 	return result;
 }
 
-ExactValue exact_value_integer(i64 i) {
+ExactValue exact_value_i64(i64 i) {
+	ExactValue result = {ExactValue_Integer};
+	result.value_integer = i128_from_i64(i);
+	return result;
+}
+
+ExactValue exact_value_i128(i128 i) {
 	ExactValue result = {ExactValue_Integer};
 	result.value_integer = i;
 	return result;
 }
+ExactValue exact_value_u128(u128 i) {
+	ExactValue result = {ExactValue_Integer};
+	result.value_integer = u128_to_i128(i);
+	return result;
+}
 
 ExactValue exact_value_float(f64 f) {
 	ExactValue result = {ExactValue_Float};
@@ -66,6 +86,13 @@ ExactValue exact_value_float(f64 f) {
 	return result;
 }
 
+ExactValue exact_value_complex(f64 real, f64 imag) {
+	ExactValue result = {ExactValue_Complex};
+	result.value_complex.real = real;
+	result.value_complex.imag = imag;
+	return result;
+}
+
 ExactValue exact_value_pointer(i64 ptr) {
 	ExactValue result = {ExactValue_Pointer};
 	result.value_pointer = ptr;
@@ -74,48 +101,10 @@ ExactValue exact_value_pointer(i64 ptr) {
 
 
 ExactValue exact_value_integer_from_string(String string) {
-	// TODO(bill): Allow for numbers with underscores in them
-	i32 base = 10;
-	bool has_prefix = false;
-	if (string.len > 2 && string.text[0] == '0') {
-		switch (string.text[1]) {
-		case 'b': base = 2;  has_prefix = true; break;
-		case 'o': base = 8;  has_prefix = true; break;
-		case 'd': base = 10; has_prefix = true; break;
-		case 'z': base = 12; has_prefix = true; break;
-		case 'x': base = 16; has_prefix = true; break;
-		}
-	}
-
-	u8 *text = string.text;
-	isize len = string.len;
-	if (has_prefix) {
-		text += 2;
-		len -= 2;
-	}
-
-	i64 result = 0;
-	for (isize i = 0; i < len; i++) {
-		Rune r = cast(Rune)text[i];
-		if (r == '_') {
-			continue;
-		}
-		i64 v = 0;
-		v = digit_value(r);
-		if (v >= base) {
-			break;
-		}
-		result *= base;
-		result += v;
-	}
-
-
-	return exact_value_integer(result);
+	return exact_value_u128(u128_from_string(string));
 }
 
-
-
-ExactValue exact_value_float_from_string(String string) {
+f64 float_from_string(String string) {
 	isize i = 0;
 	u8 *str = string.text;
 	isize len = string.len;
@@ -128,6 +117,39 @@ ExactValue exact_value_float_from_string(String string) {
 		i++;
 	}
 
+#if 0
+	if (len-i > 2 &&
+	    str[i] == '0' &&
+	    str[i+1] == 'h') {
+		i += 2;
+		u8 *text = string.text;
+		isize len = string.len;
+		if (has_prefix) {
+			text += 2;
+			len -= 2;
+		}
+
+		u64 base = 16;
+
+		u64 result = {0};
+		for (isize i = 0; i < len; i++) {
+			Rune r = cast(Rune)text[i];
+			if (r == '_') {
+				continue;
+			}
+			u64 v = bit128__digit_value(r);
+			if (v >= base) {
+				break;
+			}
+			result *= base;
+			result += v;
+		}
+
+
+		return *cast(f64 *)&result;
+	}
+#endif
+
 	f64 value = 0.0;
 	for (; i < len; i++) {
 		Rune r = cast(Rune)str[i];
@@ -190,8 +212,11 @@ ExactValue exact_value_float_from_string(String string) {
 		while (exp >   0) { scale *= 10.0; exp -=  1; }
 	}
 
-	f64 result = sign * (frac ? (value / scale) : (value * scale));
-	return exact_value_float(result);
+	return sign * (frac ? (value / scale) : (value * scale));
+}
+
+ExactValue exact_value_float_from_string(String string) {
+	return exact_value_float(float_from_string(string));
 }
 
 
@@ -200,11 +225,21 @@ ExactValue exact_value_from_basic_literal(Token token) {
 	case Token_String:  return exact_value_string(token.string);
 	case Token_Integer: return exact_value_integer_from_string(token.string);
 	case Token_Float:   return exact_value_float_from_string(token.string);
+	case Token_Imag: {
+		String str = token.string;
+		Rune last_rune = cast(Rune)str[str.len-1];
+		str.len--; // Ignore the `i|j|k`
+		f64 imag = float_from_string(str);
+
+		if (last_rune == 'i') {
+			return exact_value_complex(0, imag);
+		}
+	}
 	case Token_Rune: {
 		Rune r = GB_RUNE_INVALID;
 		gb_utf8_decode(token.string.text, token.string.len, &r);
 		// gb_printf("%.*s rune: %d\n", LIT(token.string), r);
-		return exact_value_integer(r);
+		return exact_value_i64(r);
 	}
 	default:
 		GB_PANIC("Invalid token for basic literal");
@@ -220,15 +255,15 @@ ExactValue exact_value_to_integer(ExactValue v) {
 	case ExactValue_Integer:
 		return v;
 	case ExactValue_Float: {
-		i64 i = cast(i64)v.value_float;
-		f64 f = cast(f64)i;
+		i128 i = i128_from_f64(v.value_float);
+		f64 f = i128_to_f64(i);
 		if (f == v.value_float) {
-			return exact_value_integer(i);
+			return exact_value_i128(i);
 		}
 	} break;
 
 	case ExactValue_Pointer:
-		return exact_value_integer(cast(i64)cast(intptr)v.value_pointer);
+		return exact_value_i64(cast(i64)cast(intptr)v.value_pointer);
 	}
 	ExactValue r = {ExactValue_Invalid};
 	return r;
@@ -237,7 +272,7 @@ ExactValue exact_value_to_integer(ExactValue v) {
 ExactValue exact_value_to_float(ExactValue v) {
 	switch (v.kind) {
 	case ExactValue_Integer:
-		return exact_value_float(cast(i64)v.value_integer);
+		return exact_value_float(i128_to_f64(v.value_integer));
 	case ExactValue_Float:
 		return v;
 	}
@@ -245,6 +280,57 @@ ExactValue exact_value_to_float(ExactValue v) {
 	return r;
 }
 
+ExactValue exact_value_to_complex(ExactValue v) {
+	switch (v.kind) {
+	case ExactValue_Integer:
+		return exact_value_complex(i128_to_f64(v.value_integer), 0);
+	case ExactValue_Float:
+		return exact_value_complex(v.value_float, 0);
+	case ExactValue_Complex:
+		return v;
+	}
+	ExactValue r = {ExactValue_Invalid};
+	return r;
+}
+
+
+ExactValue exact_value_real(ExactValue v) {
+	switch (v.kind) {
+	case ExactValue_Integer:
+	case ExactValue_Float:
+		return v;
+	case ExactValue_Complex:
+		return exact_value_float(v.value_complex.real);
+	}
+	ExactValue r = {ExactValue_Invalid};
+	return r;
+}
+
+ExactValue exact_value_imag(ExactValue v) {
+	switch (v.kind) {
+	case ExactValue_Integer:
+	case ExactValue_Float:
+		return exact_value_i64(0);
+	case ExactValue_Complex:
+		return exact_value_float(v.value_complex.imag);
+	}
+	ExactValue r = {ExactValue_Invalid};
+	return r;
+}
+
+ExactValue exact_value_make_imag(ExactValue v) {
+	switch (v.kind) {
+	case ExactValue_Integer:
+		return exact_value_complex(0, exact_value_to_float(v).value_float);
+	case ExactValue_Float:
+		return exact_value_complex(0, v.value_float);
+	default:
+		GB_PANIC("Expected an integer or float type for `exact_value_make_imag`");
+	}
+	ExactValue r = {ExactValue_Invalid};
+	return r;
+}
+
 
 ExactValue exact_unary_operator_value(TokenKind op, ExactValue v, i32 precision) {
 	switch (op) {
@@ -253,6 +339,7 @@ ExactValue exact_unary_operator_value(TokenKind op, ExactValue v, i32 precision)
 		case ExactValue_Invalid:
 		case ExactValue_Integer:
 		case ExactValue_Float:
+		case ExactValue_Complex:
 			return v;
 		}
 	} break;
@@ -271,11 +358,16 @@ ExactValue exact_unary_operator_value(TokenKind op, ExactValue v, i32 precision)
 			i.value_float = -i.value_float;
 			return i;
 		}
+		case ExactValue_Complex: {
+			f64 real = v.value_complex.real;
+			f64 imag = v.value_complex.imag;
+			return exact_value_complex(-real, -imag);
+		}
 		}
 	} break;
 
 	case Token_Xor: {
-		i64 i = 0;
+		i128 i = I128_ZERO;
 		switch (v.kind) {
 		case ExactValue_Invalid:
 			return v;
@@ -289,11 +381,11 @@ ExactValue exact_unary_operator_value(TokenKind op, ExactValue v, i32 precision)
 		// NOTE(bill): unsigned integers will be negative and will need to be
 		// limited to the types precision
 		// IMPORTANT NOTE(bill): Max precision is 64 bits as that's how integers are stored
-		if (0 < precision && precision < 64) {
-			i &= ~((~0ll)<<precision);
+		if (0 < precision && precision < 128) {
+			i = i & ~(I128_NEG_ONE << precision);
 		}
 
-		return exact_value_integer(i);
+		return exact_value_i128(i);
 	} break;
 
 	case Token_Not: {
@@ -308,7 +400,7 @@ ExactValue exact_unary_operator_value(TokenKind op, ExactValue v, i32 precision)
 failure:
 	GB_PANIC("Invalid unary operation, %.*s", LIT(token_strings[op]));
 
-	ExactValue error_value = {0};
+	ExactValue error_value = {};
 	return error_value;
 }
 
@@ -324,8 +416,10 @@ i32 exact_value_order(ExactValue v) {
 		return 2;
 	case ExactValue_Float:
 		return 3;
-	case ExactValue_Pointer:
+	case ExactValue_Complex:
 		return 4;
+	case ExactValue_Pointer:
+		return 5;
 
 	default:
 		GB_PANIC("How'd you get here? Invalid Value.kind");
@@ -346,6 +440,7 @@ void match_exact_values(ExactValue *x, ExactValue *y) {
 
 	case ExactValue_Bool:
 	case ExactValue_String:
+	case ExactValue_Complex:
 		return;
 
 	case ExactValue_Integer:
@@ -354,18 +449,26 @@ void match_exact_values(ExactValue *x, ExactValue *y) {
 			return;
 		case ExactValue_Float:
 			// TODO(bill): Is this good enough?
-			*x = exact_value_float(cast(f64)x->value_integer);
+			*x = exact_value_float(i128_to_f64(x->value_integer));
+			return;
+		case ExactValue_Complex:
+			*x = exact_value_complex(i128_to_f64(x->value_integer), 0);
 			return;
 		}
 		break;
 
 	case ExactValue_Float:
-		if (y->kind == ExactValue_Float)
+		switch (y->kind) {
+		case ExactValue_Float:
 			return;
+		case ExactValue_Complex:
+			*x = exact_value_to_complex(*x);
+			return;
+		}
 		break;
 	}
 
-	compiler_error("How'd you get here? Invalid ExactValueKind");
+	compiler_error("match_exact_values: How'd you get here? Invalid ExactValueKind %d", x->kind);
 }
 
 // TODO(bill): Allow for pointer arithmetic? Or are pointer slices good enough?
@@ -387,26 +490,27 @@ ExactValue exact_binary_operator_value(TokenKind op, ExactValue x, ExactValue y)
 		break;
 
 	case ExactValue_Integer: {
-		i64 a = x.value_integer;
-		i64 b = y.value_integer;
-		i64 c = 0;
+		i128 a = x.value_integer;
+		i128 b = y.value_integer;
+		i128 c = I128_ZERO;
 		switch (op) {
-		case Token_Add:    c = a + b;  break;
-		case Token_Sub:    c = a - b;  break;
-		case Token_Mul:    c = a * b;  break;
-		case Token_Quo:    return exact_value_float(fmod(cast(f64)a, cast(f64)b));
-		case Token_QuoEq:  c = a / b;  break; // NOTE(bill): Integer division
-		case Token_Mod:    c = a % b;  break;
-		case Token_And:    c = a & b;  break;
-		case Token_Or:     c = a | b;  break;
-		case Token_Xor:    c = a ^ b;  break;
-		case Token_AndNot: c = a&(~b); break;
-		case Token_Shl:    c = a << b; break;
-		case Token_Shr:    c = a >> b; break;
+		case Token_Add:    c = a + b;               break;
+		case Token_Sub:    c = a - b;               break;
+		case Token_Mul:    c = a * b;               break;
+		case Token_Quo:    return exact_value_float(fmod(i128_to_f64(a), i128_to_f64(b)));
+		case Token_QuoEq:  c = a / b;               break; // NOTE(bill): Integer division
+		case Token_Mod:    c = a % b;               break;
+		case Token_ModMod: c = ((a % b) + b) % b;   break;
+		case Token_And:    c = a & b;               break;
+		case Token_Or:     c = a | b;               break;
+		case Token_Xor:    c = a ^ b;               break;
+		case Token_AndNot: c = i128_and_not(a, b);  break;
+		case Token_Shl:    c = a << i128_to_u64(b); break;
+		case Token_Shr:    c = a >> i128_to_u64(b); break;
 		default: goto error;
 		}
 
-		return exact_value_integer(c);
+		return exact_value_i128(c);
 	} break;
 
 	case ExactValue_Float: {
@@ -420,11 +524,42 @@ ExactValue exact_binary_operator_value(TokenKind op, ExactValue x, ExactValue y)
 		default: goto error;
 		}
 	} break;
+
+	case ExactValue_Complex: {
+		y = exact_value_to_complex(y);
+		f64 a = x.value_complex.real;
+		f64 b = x.value_complex.imag;
+		f64 c = y.value_complex.real;
+		f64 d = y.value_complex.imag;
+		f64 real = 0;
+		f64 imag = 0;
+		switch (op) {
+		case Token_Add:
+			real = a + c;
+			imag = b + d;
+			break;
+		case Token_Sub:
+			real = a - c;
+			imag = b - d;
+			break;
+		case Token_Mul:
+			real = (a*c - b*d);
+			imag = (b*c + a*d);
+			break;
+		case Token_Quo: {
+			f64 s = c*c + d*d;
+			real = (a*c + b*d)/s;
+			imag = (b*c - a*d)/s;
+		} break;
+		default: goto error;
+		}
+		return exact_value_complex(real, imag);
+	} break;
 	}
 
 error:
 	;		// MSVC accepts this??? apparently you cannot declare variables immediately after labels...
-	ExactValue error_value = {0};
+	ExactValue error_value = {};
 	// gb_printf_err("Invalid binary operation: %s\n", token_kind_to_string(op));
 	return error_value;
 }
@@ -455,8 +590,8 @@ bool compare_exact_values(TokenKind op, ExactValue x, ExactValue y) {
 		break;
 
 	case ExactValue_Integer: {
-		i64 a = x.value_integer;
-		i64 b = y.value_integer;
+		i128 a = x.value_integer;
+		i128 b = y.value_integer;
 		switch (op) {
 		case Token_CmpEq: return a == b;
 		case Token_NotEq: return a != b;
@@ -480,18 +615,28 @@ bool compare_exact_values(TokenKind op, ExactValue x, ExactValue y) {
 		}
 	} break;
 
+	case ExactValue_Complex: {
+		f64 a = x.value_complex.real;
+		f64 b = x.value_complex.imag;
+		f64 c = y.value_complex.real;
+		f64 d = y.value_complex.imag;
+		switch (op) {
+		case Token_CmpEq: return cmp_f64(a, c) == 0 && cmp_f64(b, d) == 0;
+		case Token_NotEq: return cmp_f64(a, c) != 0 || cmp_f64(b, d) != 0;
+		}
+	} break;
+
 	case ExactValue_String: {
 		String a = x.value_string;
 		String b = y.value_string;
-		isize len = gb_min(a.len, b.len);
 		// TODO(bill): gb_memcompare is used because the strings are UTF-8
 		switch (op) {
-		case Token_CmpEq: return gb_memcompare(a.text, b.text, len) == 0;
-		case Token_NotEq: return gb_memcompare(a.text, b.text, len) != 0;
-		case Token_Lt:    return gb_memcompare(a.text, b.text, len) <  0;
-		case Token_LtEq:  return gb_memcompare(a.text, b.text, len) <= 0;
-		case Token_Gt:    return gb_memcompare(a.text, b.text, len) >  0;
-		case Token_GtEq:  return gb_memcompare(a.text, b.text, len) >= 0;
+		case Token_CmpEq: return a == b;
+		case Token_NotEq: return a != b;
+		case Token_Lt:    return a <  b;
+		case Token_LtEq:  return a <= b;
+		case Token_Gt:    return a >  b;
+		case Token_GtEq:  return a >= b;
 		}
 	} break;
 	}

src/gb/gb.h

@@ -164,11 +164,11 @@ extern "C" {
 #endif
 
 
-#ifndef GB_EDIAN_ORDER
-#define GB_EDIAN_ORDER
+#ifndef GB_ENDIAN_ORDER
+#define GB_ENDIAN_ORDER
 	// TODO(bill): Is the a good way or is it better to test for certain compilers and macros?
-	#define GB_IS_BIG_EDIAN    (!*(u8*)&(u16){1})
-	#define GB_IS_LITTLE_EDIAN (!GB_IS_BIG_EDIAN)
+	#define GB_IS_BIG_ENDIAN    (!*(u8*)&(u16){1})
+	#define GB_IS_LITTLE_ENDIAN (!GB_IS_BIG_ENDIAN)
 #endif
 
 #if defined(_WIN32) || defined(_WIN64)
@@ -275,8 +275,11 @@ extern "C" {
 
 
 // TODO(bill): How many of these headers do I really need?
-#include <stdarg.h>
-#include <stddef.h>
+// #include <stdarg.h>
+#if !defined(GB_SYSTEM_WINDOWS)
+	#include <stddef.h>
+	#include <stdarg.h>
+#endif
 
 
 
@@ -313,6 +316,10 @@ extern "C" {
 	#include <sys/types.h>
 	#include <time.h>
 	#include <unistd.h>
+
+	#if defined(GB_CPU_X86)
+		#include <xmmintrin.h>
+	#endif
 #endif
 
 #if defined(GB_SYSTEM_OSX)
@@ -425,7 +432,7 @@ typedef i32 b32; // NOTE(bill): Prefer this!!!
 
 // NOTE(bill): Get true and false
 #if !defined(__cplusplus)
-	#if (defined(_MSC_VER) && _MSC_VER <= 1800) || (!defined(_MSC_VER) && !defined(__STDC_VERSION__))
+	#if (defined(_MSC_VER) && _MSC_VER < 1800) || (!defined(_MSC_VER) && !defined(__STDC_VERSION__))
 		#ifndef true
 		#define true  (0 == 0)
 		#endif
@@ -3595,7 +3602,7 @@ extern "C" {
 #endif
 
 void gb_assert_handler(char const *condition, char const *file, i32 line, char const *msg, ...) {
-	gb_printf_err("%s:%d: Assert Failure: ", file, line);
+	gb_printf_err("%s(%d): Assert Failure: ", file, line);
 	if (condition)
 		gb_printf_err( "`%s` ", condition);
 	if (msg) {
@@ -3615,14 +3622,11 @@ b32 gb_is_power_of_two(isize x) {
 
 gb_inline void *gb_align_forward(void *ptr, isize alignment) {
 	uintptr p;
-	isize modulo;
 
 	GB_ASSERT(gb_is_power_of_two(alignment));
 
 	p = cast(uintptr)ptr;
-	modulo = p & (alignment-1);
-	if (modulo) p += (alignment - modulo);
-	return cast(void *)p;
+	return cast(void *)((p + (alignment-1)) &~ (alignment-1));
 }
 
 
@@ -3642,15 +3646,33 @@ gb_inline void gb_zero_size(void *ptr, isize size) { gb_memset(ptr, 0, size); }
 
 gb_inline void *gb_memcopy(void *dest, void const *source, isize n) {
 #if defined(_MSC_VER)
+	if (dest == NULL) {
+		return NULL;
+	}
 	// TODO(bill): Is this good enough?
 	__movsb(cast(u8 *)dest, cast(u8 *)source, n);
+// #elif defined(GB_SYSTEM_OSX) || defined(GB_SYSTEM_UNIX)
+	// NOTE(zangent): I assume there's a reason this isn't being used elsewhere,
+	//   but casting pointers as arguments to an __asm__ call is considered an
+	//   error on MacOS and (I think) Linux
+	// TODO(zangent): Figure out how to refactor the asm code so it works on MacOS,
+	//   since this is probably not the way the author intended this to work.
+	// memcpy(dest, source, n);
 #elif defined(GB_CPU_X86)
-	__asm__ __volatile__("rep movsb" : "+D"(cast(u8 *)dest), "+S"(cast(u8 *)source), "+c"(n) : : "memory");
+	if (dest == NULL) {
+		return NULL;
+	}
+
+	__asm__ __volatile__("rep movsb" : "+D"(dest), "+S"(source), "+c"(n) : : "memory");
 #else
 	u8 *d = cast(u8 *)dest;
 	u8 const *s = cast(u8 const *)source;
 	u32 w, x;
 
+	if (dest == NULL) {
+		return NULL;
+	}
+
 	for (; cast(uintptr)s % 4 && n; n--) {
 		*d++ = *s++;
 	}
@@ -3782,10 +3804,16 @@ gb_inline void *gb_memmove(void *dest, void const *source, isize n) {
 	u8 *d = cast(u8 *)dest;
 	u8 const *s = cast(u8 const *)source;
 
-	if (d == s)
+	if (dest == NULL) {
+		return NULL;
+	}
+
+	if (d == s) {
 		return d;
-	if (s+n <= d || d+n <= s) // NOTE(bill): Non-overlapping
+	}
+	if (s+n <= d || d+n <= s) { // NOTE(bill): Non-overlapping
 		return gb_memcopy(d, s, n);
+	}
 
 	if (d < s) {
 		if (cast(uintptr)s % gb_size_of(isize) == cast(uintptr)d % gb_size_of(isize)) {
@@ -3824,6 +3852,10 @@ gb_inline void *gb_memset(void *dest, u8 c, isize n) {
 	isize k;
 	u32 c32 = ((u32)-1)/255 * c;
 
+	if (dest == NULL) {
+		return NULL;
+	}
+
 	if (n == 0)
 		return dest;
 	s[0] = s[n-1] = c;
@@ -3844,14 +3876,16 @@ gb_inline void *gb_memset(void *dest, u8 c, isize n) {
 
 	*cast(u32 *)(s+0) = c32;
 	*cast(u32 *)(s+n-4) = c32;
-	if (n < 9)
+	if (n < 9) {
 		return dest;
+	}
 	*cast(u32 *)(s +  4)    = c32;
 	*cast(u32 *)(s +  8)    = c32;
 	*cast(u32 *)(s+n-12) = c32;
 	*cast(u32 *)(s+n- 8) = c32;
-	if (n < 25)
+	if (n < 25) {
 		return dest;
+	}
 	*cast(u32 *)(s + 12) = c32;
 	*cast(u32 *)(s + 16) = c32;
 	*cast(u32 *)(s + 20) = c32;
@@ -3884,12 +3918,17 @@ gb_inline void *gb_memset(void *dest, u8 c, isize n) {
 
 gb_inline i32 gb_memcompare(void const *s1, void const *s2, isize size) {
 	// TODO(bill): Heavily optimize
-
 	u8 const *s1p8 = cast(u8 const *)s1;
 	u8 const *s2p8 = cast(u8 const *)s2;
+
+	if (s1 == NULL || s2 == NULL) {
+		return 0;
+	}
+
 	while (size--) {
-		if (*s1p8 != *s2p8)
+		if (*s1p8 != *s2p8) {
 			return (*s1p8 - *s2p8);
+		}
 		s1p8++, s2p8++;
 	}
 	return 0;
@@ -3977,8 +4016,12 @@ gb_inline void  gb_free_all    (gbAllocator a)
 gb_inline void *gb_resize      (gbAllocator a, void *ptr, isize old_size, isize new_size)                  { return gb_resize_align(a, ptr, old_size, new_size, GB_DEFAULT_MEMORY_ALIGNMENT); }
 gb_inline void *gb_resize_align(gbAllocator a, void *ptr, isize old_size, isize new_size, isize alignment) { return a.proc(a.data, gbAllocation_Resize, new_size, alignment, ptr, old_size, GB_DEFAULT_ALLOCATOR_FLAGS); }
 
-gb_inline void *gb_alloc_copy      (gbAllocator a, void const *src, isize size)                  { return gb_memcopy(gb_alloc(a, size), src, size); }
-gb_inline void *gb_alloc_copy_align(gbAllocator a, void const *src, isize size, isize alignment) { return gb_memcopy(gb_alloc_align(a, size, alignment), src, size); }
+gb_inline void *gb_alloc_copy      (gbAllocator a, void const *src, isize size) {
+	return gb_memcopy(gb_alloc(a, size), src, size);
+}
+gb_inline void *gb_alloc_copy_align(gbAllocator a, void const *src, isize size, isize alignment) {
+	return gb_memcopy(gb_alloc_align(a, size, alignment), src, size);
+}
 
 gb_inline char *gb_alloc_str(gbAllocator a, char const *str) {
 	return gb_alloc_str_len(a, str, gb_strlen(str));
@@ -4695,7 +4738,7 @@ gb_inline u32 gb_thread_current_id(void) {
 #elif defined(GB_ARCH_32_BIT) && defined(GB_CPU_X86)
 	__asm__("mov %%gs:0x08,%0" : "=r"(thread_id));
 #elif defined(GB_ARCH_64_BIT) && defined(GB_CPU_X86)
-	__asm__("mov %%gs:0x10,%0" : "=r"(thread_id));
+	__asm__("mov %%fs:0x10,%0" : "=r"(thread_id));
 #else
 	#error Unsupported architecture for gb_thread_current_id()
 #endif
@@ -4840,6 +4883,26 @@ GB_ALLOCATOR_PROC(gb_heap_allocator_proc) {
 	case gbAllocation_Resize:
 		ptr = _aligned_realloc(old_memory, size, alignment);
 		break;
+
+#elif defined(GB_SYSTEM_LINUX)
+	// TODO(bill): *nix version that's decent
+	case gbAllocation_Alloc: {
+		ptr = aligned_alloc(alignment, size);
+		// ptr = malloc(size+alignment);
+
+		if (flags & gbAllocatorFlag_ClearToZero) {
+			gb_zero_size(ptr, size);
+		}
+	} break;
+
+	case gbAllocation_Free: {
+		free(old_memory);
+	} break;
+
+	case gbAllocation_Resize: {
+		// ptr = realloc(old_memory, size);
+		ptr = gb_default_resize_align(gb_heap_allocator(), old_memory, old_size, size, alignment);
+	} break;
 #else
 	// TODO(bill): *nix version that's decent
 	case gbAllocation_Alloc: {
@@ -4855,8 +4918,7 @@ GB_ALLOCATOR_PROC(gb_heap_allocator_proc) {
 	} break;
 
 	case gbAllocation_Resize: {
-		gbAllocator a = gb_heap_allocator();
-		ptr = gb_default_resize_align(a, old_memory, old_size, size, alignment);
+		ptr = gb_default_resize_align(gb_heap_allocator(), old_memory, old_size, size, alignment);
 	} break;
 #endif
 
@@ -5019,7 +5081,10 @@ void gb_affinity_init(gbAffinity *a) {
 	// Parsing /proc/cpuinfo to get the number of threads per core.
 	// NOTE(zangent): This calls the CPU's threads "cores", although the wording
 	// is kind of weird. This should be right, though.
-	if (fopen("/proc/cpuinfo", "r") != NULL) {
+
+	FILE* cpu_info = fopen("/proc/cpuinfo", "r");
+
+	if (cpu_info != NULL) {
 		for (;;) {
 			// The 'temporary char'. Everything goes into this char,
 			// so that we can check against EOF at the end of this loop.
@@ -5050,6 +5115,8 @@ void gb_affinity_init(gbAffinity *a) {
 			}
 #undef AF__CHECK
 		}
+
+		fclose(cpu_info);
 	}
 
 	if (threads == 0) {
@@ -5999,6 +6066,9 @@ gb_inline void gb_str_to_upper(char *str) {
 gb_inline isize gb_strlen(char const *str) {
 	char const *begin = str;
 	isize const *w;
+	if (str == NULL)  {
+		return 0;
+	}
 	while (cast(uintptr)str % sizeof(usize)) {
 		if (!*str)
 			return str - begin;
@@ -6314,20 +6384,23 @@ gb_global char const gb__num_to_char_table[] =
 gb_inline void gb_i64_to_str(i64 value, char *string, i32 base) {
 	char *buf = string;
 	b32 negative = false;
+	u64 v;
 	if (value < 0) {
 		negative = true;
 		value = -value;
 	}
-	if (value) {
-		while (value > 0) {
-			*buf++ = gb__num_to_char_table[value % base];
-			value /= base;
+	v = cast(u64)value;
+	if (v != 0) {
+		while (v > 0) {
+			*buf++ = gb__num_to_char_table[v % base];
+			v /= base;
 		}
 	} else {
 		*buf++ = '0';
 	}
-	if (negative)
+	if (negative) {
 		*buf++ = '-';
+	}
 	*buf = '\0';
 	gb_strrev(string);
 }
@@ -7552,10 +7625,14 @@ u64 gb_murmur64_seed(void const *data_, isize len, u64 seed) {
 
 gbFileError gb_file_new(gbFile *f, gbFileDescriptor fd, gbFileOperations ops, char const *filename) {
 	gbFileError err = gbFileError_None;
+	isize len = gb_strlen(filename);
+
+	// gb_printf_err("gb_file_new: %s\n", filename);
 
 	f->ops = ops;
 	f->fd = fd;
-	f->filename = gb_alloc_str(gb_heap_allocator(), filename);
+	f->filename = gb_alloc_array(gb_heap_allocator(), char, len+1);
+	gb_memcopy(cast(char *)f->filename, cast(char *)filename, len+1);
 	f->last_write_time = gb_file_last_write_time(f->filename);
 
 	return err;
@@ -7577,11 +7654,17 @@ gbFileError gb_file_open_mode(gbFile *f, gbFileMode mode, char const *filename)
 }
 
 gbFileError gb_file_close(gbFile *f) {
-	if (!f) {
+	if (f == NULL) {
 		return gbFileError_Invalid;
 	}
 
-	if (f->filename) gb_free(gb_heap_allocator(), cast(char *)f->filename);
+#if defined(GB_COMPILER_MSVC)
+	if (f->filename != NULL) {
+		gb_free(gb_heap_allocator(), cast(char *)f->filename);
+	}
+#else
+	// TODO HACK(bill): Memory Leak!!!
+#endif
 
 #if defined(GB_SYSTEM_WINDOWS)
 	if (f->fd.p == INVALID_HANDLE_VALUE) {
@@ -7993,19 +8076,23 @@ char *gb_path_get_full_name(gbAllocator a, char const *path) {
 	new_path[new_len] = 0;
 	return new_path;
 #else
-// TODO(bill): Make work on *nix, etc.
-	char* p = realpath(path, 0);
-	GB_ASSERT(p && "file does not exist");
+	char *p, *result, *fullpath = NULL;
+	isize len;
+	p = realpath(path, NULL);
+	fullpath = p;
+	if (p == NULL) {
+		// NOTE(bill): File does not exist
+		fullpath = cast(char *)path;
+	}
 
-	isize len = gb_strlen(p);
+	len = gb_strlen(fullpath);
 
-	// bill... gb_alloc_str_len refused to work for this...
-	char* ret = gb_alloc(a, sizeof(char) * len + 1);
-	gb_memmove(ret, p, len);
-	ret[len] = 0;
+	result = gb_alloc_array(a, char, len + 1);
+	gb_memmove(result, fullpath, len);
+	result[len] = 0;
 	free(p);
 
-	return ret;
+	return result;
 #endif
 }
 

src/integer128.cpp

@@ -0,0 +1,726 @@
+
+#if defined(GB_COMPILER_MSVC) && defined(GB_ARCH_64_BIT) && defined(GB_CPU_X86)
+	#define MSVC_AMD64_INTRINSICS
+	#include <intrin.h>
+	#pragma intrinsic(_mul128)
+#endif
+
+#define BIT128_U64_HIGHBIT 0x8000000000000000ull
+#define BIT128_U64_BITS62  0x7fffffffffffffffull
+#define BIT128_U64_ALLBITS 0xffffffffffffffffull
+
+
+typedef struct u128 { u64 lo; u64 hi; } u128;
+typedef struct i128 { u64 lo; i64 hi; } i128;
+
+
+static u128 const U128_ZERO = {0, 0};
+static u128 const U128_ONE  = {1, 0};
+static i128 const I128_ZERO = {0, 0};
+static i128 const I128_ONE  = {1, 0};
+static u128 const U128_NEG_ONE = {BIT128_U64_ALLBITS, BIT128_U64_ALLBITS};
+static i128 const I128_NEG_ONE = {BIT128_U64_ALLBITS, cast(i64)BIT128_U64_ALLBITS};
+
+u128 u128_lo_hi      (u64 lo, u64 hi);
+u128 u128_from_u32   (u32 u);
+u128 u128_from_u64   (u64 u);
+u128 u128_from_i64   (i64 u);
+u128 u128_from_f32   (f32 f);
+u128 u128_from_f64   (f64 f);
+u128 u128_from_string(String string);
+
+i128 i128_lo_hi      (u64 lo, i64 hi);
+i128 i128_from_u32   (u32 u);
+i128 i128_from_u64   (u64 u);
+i128 i128_from_i64   (i64 u);
+i128 i128_from_f32   (f32 f);
+i128 i128_from_f64   (f64 f);
+i128 i128_from_string(String string);
+
+u64 u128_to_u64(u128 a);
+i64 u128_to_i64(u128 a);
+f64 u128_to_f64(u128 a);
+i128 u128_to_i128(u128 a);
+
+u64 i128_to_u64(i128 a);
+i64 i128_to_i64(i128 a);
+f64 i128_to_f64(i128 a);
+u128 i128_to_u128(i128 a);
+
+String u128_to_string(u128 a, char *buf, isize len);
+String i128_to_string(i128 a, char *buf, isize len);
+
+i32  u128_cmp    (u128 a, u128 b);
+bool u128_eq     (u128 a, u128 b);
+bool u128_ne     (u128 a, u128 b);
+bool u128_lt     (u128 a, u128 b);
+bool u128_gt     (u128 a, u128 b);
+bool u128_le     (u128 a, u128 b);
+bool u128_ge     (u128 a, u128 b);
+u128 u128_add    (u128 a, u128 b);
+u128 u128_not    (u128 a);
+u128 u128_neg    (u128 a);
+u128 u128_sub    (u128 a, u128 b);
+u128 u128_and    (u128 a, u128 b);
+u128 u128_or     (u128 a, u128 b);
+u128 u128_xor    (u128 a, u128 b);
+u128 u128_and_not(u128 a, u128 b);
+u128 u128_shl    (u128 a, u32 n);
+u128 u128_shr    (u128 a, u32 n);
+u128 u128_mul    (u128 a, u128 b);
+void u128_divide (u128 num, u128 den, u128 *quo, u128 *rem);
+u128 u128_quo    (u128 a, u128 b);
+u128 u128_mod    (u128 a, u128 b);
+
+i128 i128_abs    (i128 a);
+i32  i128_cmp    (i128 a, i128 b);
+bool i128_eq     (i128 a, i128 b);
+bool i128_ne     (i128 a, i128 b);
+bool i128_lt     (i128 a, i128 b);
+bool i128_gt     (i128 a, i128 b);
+bool i128_le     (i128 a, i128 b);
+bool i128_ge     (i128 a, i128 b);
+i128 i128_add    (i128 a, i128 b);
+i128 i128_not    (i128 a);
+i128 i128_neg    (i128 a);
+i128 i128_sub    (i128 a, i128 b);
+i128 i128_and    (i128 a, i128 b);
+i128 i128_or     (i128 a, i128 b);
+i128 i128_xor    (i128 a, i128 b);
+i128 i128_and_not(i128 a, i128 b);
+i128 i128_shl    (i128 a, u32 n);
+i128 i128_shr    (i128 a, u32 n);
+i128 i128_mul    (i128 a, i128 b);
+void i128_divide (i128 num, i128 den, i128 *quo, i128 *rem);
+i128 i128_quo    (i128 a, i128 b);
+i128 i128_mod    (i128 a, i128 b);
+
+bool operator==(u128 a, u128 b) { return u128_eq(a, b); }
+bool operator!=(u128 a, u128 b) { return u128_ne(a, b); }
+bool operator< (u128 a, u128 b) { return u128_lt(a, b); }
+bool operator> (u128 a, u128 b) { return u128_gt(a, b); }
+bool operator<=(u128 a, u128 b) { return u128_le(a, b); }
+bool operator>=(u128 a, u128 b) { return u128_ge(a, b); }
+
+u128 operator+(u128 a, u128 b) { return u128_add(a, b); }
+u128 operator-(u128 a, u128 b) { return u128_sub(a, b); }
+u128 operator*(u128 a, u128 b) { return u128_mul(a, b); }
+u128 operator/(u128 a, u128 b) { return u128_quo(a, b); }
+u128 operator%(u128 a, u128 b) { return u128_mod(a, b); }
+u128 operator&(u128 a, u128 b) { return u128_and(a, b); }
+u128 operator|(u128 a, u128 b) { return u128_or (a, b); }
+u128 operator^(u128 a, u128 b) { return u128_xor(a, b); }
+u128 operator~(u128 a)         { return u128_not(a); }
+u128 operator+(u128 a)         { return a; }
+u128 operator-(u128 a)         { return u128_neg(a); }
+u128 operator<<(u128 a, u32 b) { return u128_shl(a, b); }
+u128 operator>>(u128 a, u32 b) { return u128_shr(a, b); }
+
+
+bool operator==(i128 a, i128 b) { return i128_eq(a, b); }
+bool operator!=(i128 a, i128 b) { return i128_ne(a, b); }
+bool operator< (i128 a, i128 b) { return i128_lt(a, b); }
+bool operator> (i128 a, i128 b) { return i128_gt(a, b); }
+bool operator<=(i128 a, i128 b) { return i128_le(a, b); }
+bool operator>=(i128 a, i128 b) { return i128_ge(a, b); }
+
+i128 operator+(i128 a, i128 b) { return i128_add(a, b); }
+i128 operator-(i128 a, i128 b) { return i128_sub(a, b); }
+i128 operator*(i128 a, i128 b) { return i128_mul(a, b); }
+i128 operator/(i128 a, i128 b) { return i128_quo(a, b); }
+i128 operator%(i128 a, i128 b) { return i128_mod(a, b); }
+i128 operator&(i128 a, i128 b) { return i128_and(a, b); }
+i128 operator|(i128 a, i128 b) { return i128_or (a, b); }
+i128 operator^(i128 a, i128 b) { return i128_xor(a, b); }
+i128 operator~(i128 a)         { return i128_not(a); }
+i128 operator+(i128 a)         { return a; }
+i128 operator-(i128 a)         { return i128_neg(a); }
+i128 operator<<(i128 a, u32 b) { return i128_shl(a, b); }
+i128 operator>>(i128 a, u32 b) { return i128_shr(a, b); }
+
+////////////////////////////////////////////////////////////////
+
+
+u64 bit128__digit_value(Rune r) {
+	if ('0' <= r && r <= '9') {
+		return r - '0';
+	} else if ('a' <= r && r <= 'f') {
+		return r - 'a' + 10;
+	} else if ('A' <= r && r <= 'F') {
+		return r - 'A' + 10;
+	}
+	return 16; // NOTE(bill): Larger than highest possible
+}
+
+u128 u128_lo_hi(u64 lo, u64 hi) {
+	u128 r = {};
+	r.lo = lo;
+	r.hi = hi;
+	return r;
+}
+u128 u128_from_u32(u32 u)       { return u128_lo_hi(cast(u64)u, 0); }
+u128 u128_from_u64(u64 u)       { return u128_lo_hi(cast(u64)u, 0); }
+u128 u128_from_i64(i64 u)       { return u128_lo_hi(cast(u64)u, u < 0 ? -1 : 0); }
+u128 u128_from_f32(f32 f)       { return u128_lo_hi(cast(u64)f, 0); }
+u128 u128_from_f64(f64 f)       { return u128_lo_hi(cast(u64)f, 0); }
+u128 u128_from_string(String string) {
+	// TODO(bill): Allow for numbers with underscores in them
+	u64 base = 10;
+	bool has_prefix = false;
+	if (string.len > 2 && string[0] == '0') {
+		switch (string[1]) {
+		case 'b': base = 2;  has_prefix = true; break;
+		case 'o': base = 8;  has_prefix = true; break;
+		case 'd': base = 10; has_prefix = true; break;
+		case 'z': base = 12; has_prefix = true; break;
+		case 'x': base = 16; has_prefix = true; break;
+		}
+	}
+
+	u8 *text = string.text;
+	isize len = string.len;
+	if (has_prefix) {
+		text += 2;
+		len -= 2;
+	}
+
+	u128 base_ = u128_from_u64(base);
+
+	u128 result = {0};
+	for (isize i = 0; i < len; i++) {
+		Rune r = cast(Rune)text[i];
+		if (r == '_') {
+			continue;
+		}
+		u64 v = bit128__digit_value(r);
+		if (v >= base) {
+			break;
+		}
+		result = u128_mul(result, base_);
+		result = u128_add(result, u128_from_u64(v));
+	}
+	return result;
+}
+
+
+i128 i128_lo_hi(u64 lo, i64 hi) {
+	i128 i;
+	i.lo = lo;
+	i.hi = hi;
+	return i;
+}
+i128 i128_from_u32(u32 u)       { return i128_lo_hi(cast(u64)u, 0); }
+i128 i128_from_u64(u64 u)       { return i128_lo_hi(cast(u64)u, 0); }
+i128 i128_from_i64(i64 u)       { return i128_lo_hi(cast(u64)u, u < 0 ? -1 : 0); }
+i128 i128_from_f32(f32 f)       { return i128_lo_hi(cast(u64)f, 0); }
+i128 i128_from_f64(f64 f)       { return i128_lo_hi(cast(u64)f, 0); }
+i128 i128_from_string(String string) {
+	// TODO(bill): Allow for numbers with underscores in them
+	u64 base = 10;
+	bool has_prefix = false;
+	if (string.len > 2 && string[0] == '0') {
+		switch (string[1]) {
+		case 'b': base = 2;  has_prefix = true; break;
+		case 'o': base = 8;  has_prefix = true; break;
+		case 'd': base = 10; has_prefix = true; break;
+		case 'z': base = 12; has_prefix = true; break;
+		case 'x': base = 16; has_prefix = true; break;
+		}
+	}
+
+	u8 *text = string.text;
+	isize len = string.len;
+	if (has_prefix) {
+		text += 2;
+		len -= 2;
+	}
+
+	i128 base_ = i128_from_u64(base);
+
+	i128 result = {0};
+	for (isize i = 0; i < len; i++) {
+		Rune r = cast(Rune)text[i];
+		if (r == '_') {
+			continue;
+		}
+		u64 v = bit128__digit_value(r);
+		if (v >= base) {
+			break;
+		}
+		result = i128_mul(result, base_);
+		result = i128_add(result, i128_from_u64(v));
+	}
+
+	return result;
+}
+
+
+
+u64 u128_to_u64(u128 a) {
+	return (a.lo&BIT128_U64_BITS62) | (a.hi&BIT128_U64_HIGHBIT);
+}
+i64 u128_to_i64(u128 a) {
+	return a.lo;
+}
+f64 u128_to_f64(u128 a) {
+	if (a.hi >= 0) {
+		return (cast(f64)a.hi * 18446744073709551616.0) + cast(f64)a.lo;
+	}
+	i64 h = cast(i64)a.hi;
+	u64 l = a.lo;
+	h = ~h;
+	l = ~l;
+	l += 1;
+	if (l == 0) {
+		h += 1;
+	}
+
+	return -((cast(f64)h * 18446744073709551616.0) + cast(f64)l);
+}
+i128 u128_to_i128(u128 a) {
+	return *cast(i128 *)&a;
+}
+
+
+
+
+u64 i128_to_u64(i128 a) {
+	return (a.lo&BIT128_U64_BITS62) | (a.hi&BIT128_U64_HIGHBIT);
+}
+i64 i128_to_i64(i128 a) {
+	return cast(i64)a.lo;
+}
+f64 i128_to_f64(i128 a) {
+	if (a.hi >= 0) {
+		return (cast(f64)a.hi * 18446744073709551616.0) + cast(f64)a.lo;
+	}
+	i64 h = a.hi;
+	u64 l = a.lo;
+	h = ~h;
+	l = ~l;
+	l += 1;
+	if (l == 0) {
+		h += 1;
+	}
+
+	return -((cast(f64)h * 18446744073709551616.0) + cast(f64)l);
+}
+u128 i128_to_u128(i128 a) {
+	return *cast(u128 *)&a;
+}
+
+
+
+String u128_to_string(u128 v, char *out_buf, isize out_buf_len) {
+	char buf[200] = {0};
+	isize i = gb_size_of(buf);
+
+	u128 b = u128_from_u64(10);;
+	while (u128_ge(v, b)) {
+		buf[--i] = gb__num_to_char_table[u128_to_i64(u128_mod(v, b))];
+		v = u128_quo(v, b);
+	}
+	buf[--i] = gb__num_to_char_table[u128_to_i64(u128_mod(v, b))];
+
+	isize len = gb_min(gb_size_of(buf)-i, out_buf_len);
+	gb_memcopy(out_buf, &buf[i], len);
+	return make_string(cast(u8 *)out_buf, len);
+}
+String i128_to_string(i128 a, char *out_buf, isize out_buf_len) {
+	char buf[200] = {0};
+	isize i = gb_size_of(buf);
+	bool negative = false;
+	if (i128_lt(a, I128_ZERO)) {
+		negative = true;
+		a = i128_neg(a);
+	}
+
+	u128 v = *cast(u128 *)&a;
+	u128 b = u128_from_u64(10);;
+	while (u128_ge(v, b)) {
+		buf[--i] = gb__num_to_char_table[u128_to_i64(u128_mod(v, b))];
+		v = u128_quo(v, b);
+	}
+	buf[--i] = gb__num_to_char_table[u128_to_i64(u128_mod(v, b))];
+
+	if (negative) {
+		buf[--i] = '-';
+	}
+
+	isize len = gb_min(gb_size_of(buf)-i, out_buf_len);
+	gb_memcopy(out_buf, &buf[i], len);
+	return make_string(cast(u8 *)out_buf, len);
+}
+
+
+
+////////////////////////////////////////////////////////////////
+
+i32 u128_cmp(u128 a, u128 b) {
+	if (a.hi == b.hi && b.lo == b.lo) {
+		return 0;
+	}
+	if (a.hi == b.hi) {
+		return a.lo < b.lo ? -1 : +1;
+	}
+	return a.hi < b.hi ? -1 : +1;
+}
+
+bool u128_eq(u128 a, u128 b) { return a.hi == b.hi && a.lo == b.lo; }
+bool u128_ne(u128 a, u128 b) { return !u128_eq(a, b); }
+bool u128_lt(u128 a, u128 b) { return a.hi == b.hi ? a.lo < b.lo : a.hi < b.hi; }
+bool u128_gt(u128 a, u128 b) { return a.hi == b.hi ? a.lo > b.lo : a.hi > b.hi; }
+bool u128_le(u128 a, u128 b) { return !u128_gt(a, b); }
+bool u128_ge(u128 a, u128 b) { return !u128_lt(a, b); }
+
+u128 u128_add(u128 a, u128 b) {
+	u128 old_a = a;
+	a.lo += b.lo;
+	a.hi += b.hi;
+	if (a.lo < old_a.lo) {
+		a.hi += 1;
+	}
+	return a;
+}
+u128 u128_not(u128 a) { return u128_lo_hi(~a.lo, ~a.hi); }
+
+u128 u128_neg(u128 a) {
+	return u128_add(u128_not(a), u128_from_u64(1));
+}
+u128 u128_sub(u128 a, u128 b) {
+	return u128_add(a, u128_neg(b));
+}
+u128 u128_and(u128 a, u128 b) { return u128_lo_hi(a.lo&b.lo, a.hi&b.hi); }
+u128 u128_or (u128 a, u128 b) { return u128_lo_hi(a.lo|b.lo, a.hi|b.hi); }
+u128 u128_xor(u128 a, u128 b) { return u128_lo_hi(a.lo^b.lo, a.hi^b.hi); }
+u128 u128_and_not(u128 a, u128 b) { return u128_lo_hi(a.lo&(~b.lo), a.hi&(~b.hi)); }
+
+
+u128 u128_shl(u128 a, u32 n) {
+	if (n >= 128) {
+		return u128_lo_hi(0, 0);
+	}
+#if 0 && defined(MSVC_AMD64_INTRINSICS)
+	a.hi = __shiftleft128(a.lo, a.hi, n);
+	a.lo = a.lo << n;
+	return a;
+#else
+	if (n >= 64) {
+		n -= 64;
+		a.hi = a.lo;
+		a.lo = 0;
+	}
+
+	if (n != 0) {
+		u64 mask = ~(BIT128_U64_ALLBITS >> n);
+
+		a.hi <<= n;
+		a.hi |= (a.lo&mask) >> (64 - n);
+		a.lo <<= n;
+	}
+	return a;
+#endif
+}
+
+u128 u128_shr(u128 a, u32 n) {
+	if (n >= 128) {
+		return u128_lo_hi(0, 0);
+	}
+#if 0 && defined(MSVC_AMD64_INTRINSICS)
+	a.lo = __shiftright128(a.lo, a.hi, n);
+	a.hi = a.hi >> n;
+	return a;
+#else
+	if (n >= 64) {
+		n -= 64;
+		a.lo = a.hi;
+		a.hi = 0;
+	}
+
+	if (n != 0) {
+		u64 mask = ~(BIT128_U64_ALLBITS << n);
+		a.lo >>= n;
+		a.lo |= (a.hi&mask) << (64 - n);
+		a.hi >>= n;
+	}
+	return a;
+#endif
+}
+
+
+u128 u128_mul(u128 a, u128 b) {
+	if (a.lo == 0 && a.hi == 0) {
+		return u128_from_u64(0);
+	} else if (b.lo == 0 && b.hi == 0) {
+		return u128_from_u64(0);
+	}
+	if (u128_eq(a, U128_ONE)) {
+		return b;
+	}
+	if (u128_eq(b, U128_ONE)) {
+		return a;
+	}
+
+
+#if defined(MSVC_AMD64_INTRINSICS)
+	if (a.hi == 0 && b.hi == 0) {
+		a.lo = _umul128(a.lo, b.lo, &a.hi);
+		return a;
+	}
+#endif
+
+	u128 res = {0};
+	u128 t = b;
+	for (u32 i = 0; i < 128; i++) {
+		if ((t.lo&1) != 0) {
+			res = u128_add(res, u128_shl(a, i));
+		}
+
+		t = u128_shr(t, 1);
+	}
+
+	return res;
+}
+
+bool u128_hibit(u128 *d) { return (d->hi & BIT128_U64_HIGHBIT) != 0; }
+
+void u128_divide(u128 num, u128 den, u128 *quo, u128 *rem) {
+	if (u128_eq(den, U128_ZERO)) {
+		if (quo) *quo = u128_from_u64(num.lo/den.lo);
+		if (rem) *rem = U128_ZERO;
+	} else {
+		u128 n = num;
+		u128 d = den;
+		u128 x = U128_ONE;
+		u128 r = U128_ZERO;
+
+		while (u128_ge(n, d) && !u128_hibit(&d)) {
+			x = u128_shl(x, 1);
+			d = u128_shl(d, 1);
+		}
+
+		while (u128_ne(x, U128_ZERO)) {
+			if (u128_ge(n, d)) {
+				n = u128_sub(n, d);
+				r = u128_or(r, x);
+			}
+
+			x = u128_shr(x, 1);
+			d = u128_shr(d, 1);
+		}
+
+		if (quo) *quo = r;
+		if (rem) *rem = n;
+	}
+}
+
+u128 u128_quo(u128 a, u128 b) {
+	if (a.hi == 0 && b.hi == 0) {
+		return u128_from_u64(a.lo/b.lo);
+	}
+
+	u128 res = {0};
+	u128_divide(a, b, &res, NULL);
+	return res;
+}
+u128 u128_mod(u128 a, u128 b) {
+	if (a.hi == 0 && b.hi == 0) {
+		return u128_from_u64(a.lo%b.lo);
+	}
+	u128 res = {0};
+	u128_divide(a, b, NULL, &res);
+	return res;
+}
+
+////////////////////////////////////////////////////////////////
+
+i128 i128_abs(i128 a) {
+	if ((a.hi&BIT128_U64_HIGHBIT) != 0) {
+		return i128_neg(a);
+	}
+	return a;
+}
+
+i32 i128_cmp(i128 a, i128 b) {
+	if (a.hi == b.hi && b.lo == b.lo) {
+		return 0;
+	}
+	if (a.hi == b.hi) {
+		return a.lo < b.lo ? -1 : +1;
+	}
+	return a.hi < b.hi ? -1 : +1;
+}
+
+bool i128_eq(i128 a, i128 b) { return a.hi == b.hi && a.lo == b.lo; }
+bool i128_ne(i128 a, i128 b) { return !i128_eq(a, b); }
+bool i128_lt(i128 a, i128 b) { return a.hi == b.hi ? a.lo < b.lo : a.hi < b.hi; }
+bool i128_gt(i128 a, i128 b) { return a.hi == b.hi ? a.lo > b.lo : a.hi > b.hi; }
+bool i128_le(i128 a, i128 b) { return a.hi == b.hi ? a.lo <= b.lo : a.hi <= b.hi; }
+bool i128_ge(i128 a, i128 b) { return a.hi == b.hi ? a.lo >= b.lo : a.hi >= b.hi; }
+
+i128 i128_add(i128 a, i128 b) {
+	i128 old_a = a;
+	a.lo += b.lo;
+	a.hi += b.hi;
+	if (a.lo < old_a.lo) {
+		a.hi += 1;
+	}
+	return a;
+}
+i128 i128_not(i128 a) { return i128_lo_hi(~a.lo, ~a.hi); }
+
+i128 i128_neg(i128 a) {
+	return i128_add(i128_not(a), i128_from_u64(1));
+}
+i128 i128_sub(i128 a, i128 b) {
+	return i128_add(a, i128_neg(b));
+}
+i128 i128_and(i128 a, i128 b) { return i128_lo_hi(a.lo&b.lo, a.hi&b.hi); }
+i128 i128_or (i128 a, i128 b) { return i128_lo_hi(a.lo|b.lo, a.hi|b.hi); }
+i128 i128_xor(i128 a, i128 b) { return i128_lo_hi(a.lo^b.lo, a.hi^b.hi); }
+i128 i128_and_not(i128 a, i128 b) { return i128_lo_hi(a.lo&(~b.lo), a.hi&(~b.hi)); }
+
+
+i128 i128_shl(i128 a, u32 n) {
+	if (n >= 128) {
+		return i128_lo_hi(0, 0);
+	}
+
+#if 0 && defined(MSVC_AMD64_INTRINSICS)
+	a.hi = __shiftleft128(a.lo, a.hi, n);
+	a.lo = a.lo << n;
+	return a;
+#else
+	if (n >= 64) {
+		n -= 64;
+		a.hi = a.lo;
+		a.lo = 0;
+	}
+
+	if (n != 0) {
+		u64 mask = ~(BIT128_U64_ALLBITS >> n);
+
+		a.hi <<= n;
+		a.hi |= (a.lo&mask) >> (64 - n);
+		a.lo <<= n;
+	}
+	return a;
+#endif
+}
+
+i128 i128_shr(i128 a, u32 n) {
+	if (n >= 128) {
+		return i128_lo_hi(0, 0);
+	}
+
+#if 0 && defined(MSVC_AMD64_INTRINSICS)
+	a.lo = __shiftright128(a.lo, a.hi, n);
+	a.hi = a.hi >> n;
+	return a;
+#else
+	if (n >= 64) {
+		n -= 64;
+		a.lo = a.hi;
+		a.hi = 0;
+	}
+
+	if (n != 0) {
+		u64 mask = ~(BIT128_U64_ALLBITS << n);
+		a.lo >>= n;
+		a.lo |= (a.hi&mask) << (64 - n);
+		a.hi >>= n;
+	}
+	return a;
+#endif
+}
+
+
+i128 i128_mul(i128 a, i128 b) {
+	if (a.lo == 0 && a.hi == 0) {
+		return i128_from_u64(0);
+	} else if (b.lo == 0 && b.hi == 0) {
+		return i128_from_u64(0);
+	}
+	if (i128_eq(a, I128_ONE)) {
+		return b;
+	}
+	if (i128_eq(b, I128_ONE)) {
+		return a;
+	}
+
+#if defined(MSVC_AMD64_INTRINSICS)
+	if (a.hi == 0 && b.hi == 0) {
+		a.lo = _mul128(a.lo, b.lo, &a.hi);
+		return a;
+	}
+#endif
+
+	i128 res = {0};
+	i128 t = b;
+	for (u32 i = 0; i < 128; i++) {
+		if ((t.lo&1) != 0) {
+			res = i128_add(res, i128_shl(a, i));
+		}
+
+		t = i128_shr(t, 1);
+	}
+
+	return res;
+}
+
+void i128_divide(i128 a, i128 b, i128 *quo, i128 *rem) {
+	// TODO(bill): Which one is correct?!
+#if 1
+	i128 s = i128_shr(b, 127);
+	b = i128_sub(i128_xor(b, s), s);
+	s = i128_shr(a, 127);
+	b = i128_sub(i128_xor(a, s), s);
+
+	u128 n, r = {0};
+	u128_divide(*cast(u128 *)&a, *cast(u128 *)&b, &n, &r);
+	i128 ni = *cast(i128 *)&n;
+	i128 ri = *cast(i128 *)&r;
+
+	if (quo) *quo = i128_sub(i128_xor(ni, s), s);
+	if (rem) *rem = i128_sub(i128_xor(ri, s), s);
+#else
+	if (i128_eq(b, I128_ZERO)) {
+		if (quo) *quo = i128_from_u64(a.lo/b.lo);
+		if (rem) *rem = I128_ZERO;
+	} else {
+		i128 n = a;
+		i128 d = b;
+		i128 x = I128_ONE;
+		i128 r = I128_ZERO;
+
+		while (i128_ge(n, d) && ((i128_shr(d, 128-1).lo&1) == 0)) {
+			x = i128_shl(x, 1);
+			d = i128_shl(d, 1);
+		}
+
+		while (i128_ne(x, I128_ZERO)) {
+			if (i128_ge(n, d)) {
+				n = i128_sub(n, d);
+				r = i128_or(r, x);
+			}
+
+			x = i128_shr(x, 1);
+			d = i128_shr(d, 1);
+		}
+
+		if (quo) *quo = r;
+		if (rem) *rem = n;
+	}
+#endif
+}
+
+i128 i128_quo(i128 a, i128 b) {
+	i128 res = {0};
+	i128_divide(a, b, &res, NULL);
+	return res;
+}
+i128 i128_mod(i128 a, i128 b) {
+	i128 res = {0};
+	i128_divide(a, b, NULL, &res);
+	return res;
+}

src/ir_opt.cpp

@@ -1,6 +1,6 @@
 // Optimizations for the IR code
 
-void ir_opt_add_operands(irValueArray *ops, irInstr *i) {
+void ir_opt_add_operands(Array<irValue *> *ops, irInstr *i) {
 	switch (i->kind) {
 	case irInstr_Comment:
 		break;
@@ -48,7 +48,7 @@ void ir_opt_add_operands(irValueArray *ops, irInstr *i) {
 		break;
 	case irInstr_Phi:
 		for_array(j, i->Phi.edges) {
-			array_add(ops, i->Phi.edges.e[j]);
+			array_add(ops, i->Phi.edges[j]);
 		}
 		break;
 	case irInstr_Unreachable:
@@ -80,6 +80,8 @@ void ir_opt_add_operands(irValueArray *ops, irInstr *i) {
 		// break;
 	case irInstr_StartupRuntime:
 		break;
+
+	#if 0
 	case irInstr_BoundsCheck:
 		array_add(ops, i->BoundsCheck.index);
 		array_add(ops, i->BoundsCheck.len);
@@ -88,6 +90,7 @@ void ir_opt_add_operands(irValueArray *ops, irInstr *i) {
 		array_add(ops, i->SliceBoundsCheck.low);
 		array_add(ops, i->SliceBoundsCheck.high);
 		break;
+	#endif
 	}
 }
 
@@ -97,24 +100,24 @@ void ir_opt_add_operands(irValueArray *ops, irInstr *i) {
 
 void ir_opt_block_replace_pred(irBlock *b, irBlock *from, irBlock *to) {
 	for_array(i, b->preds) {
-		irBlock *pred = b->preds.e[i];
+		irBlock *pred = b->preds[i];
 		if (pred == from) {
-			b->preds.e[i] = to;
+			b->preds[i] = to;
 		}
 	}
 }
 
 void ir_opt_block_replace_succ(irBlock *b, irBlock *from, irBlock *to) {
 	for_array(i, b->succs) {
-		irBlock *succ = b->succs.e[i];
+		irBlock *succ = b->succs[i];
 		if (succ == from) {
-			b->succs.e[i] = to;
+			b->succs[i] = to;
 		}
 	}
 }
 
 bool ir_opt_block_has_phi(irBlock *b) {
-	return b->instrs.e[0]->Instr.kind == irInstr_Phi;
+	return b->instrs[0]->Instr.kind == irInstr_Phi;
 }
 
 
@@ -126,10 +129,10 @@ bool ir_opt_block_has_phi(irBlock *b) {
 
 
 
-irValueArray ir_get_block_phi_nodes(irBlock *b) {
-	irValueArray phis = {0};
+Array<irValue *> ir_get_block_phi_nodes(irBlock *b) {
+	Array<irValue *> phis = {0};
 	for_array(i, b->instrs) {
-		irInstr *instr = &b->instrs.e[i]->Instr;
+		irInstr *instr = &b->instrs[i]->Instr;
 		if (instr->kind != irInstr_Phi) {
 			phis = b->instrs;
 			phis.count = i;
@@ -140,22 +143,22 @@ irValueArray ir_get_block_phi_nodes(irBlock *b) {
 }
 
 void ir_remove_pred(irBlock *b, irBlock *p) {
-	irValueArray phis = ir_get_block_phi_nodes(b);
+	Array<irValue *> phis = ir_get_block_phi_nodes(b);
 	isize i = 0;
 	for_array(j, b->preds) {
-		irBlock *pred = b->preds.e[j];
+		irBlock *pred = b->preds[j];
 		if (pred != p) {
-			b->preds.e[i] = b->preds.e[j];
+			b->preds[i] = b->preds[j];
 			for_array(k, phis) {
-				irInstrPhi *phi = &phis.e[k]->Instr.Phi;
-				phi->edges.e[i] = phi->edges.e[j];
+				irInstrPhi *phi = &phis[k]->Instr.Phi;
+				phi->edges[i] = phi->edges[j];
 			}
 			i++;
 		}
 	}
 	b->preds.count = i;
 	for_array(k, phis) {
-		irInstrPhi *phi = &phis.e[k]->Instr.Phi;
+		irInstrPhi *phi = &phis[k]->Instr.Phi;
 		phi->edges.count = i;
 	}
 
@@ -164,13 +167,13 @@ void ir_remove_pred(irBlock *b, irBlock *p) {
 void ir_remove_dead_blocks(irProcedure *proc) {
 	isize j = 0;
 	for_array(i, proc->blocks) {
-		irBlock *b = proc->blocks.e[i];
+		irBlock *b = proc->blocks[i];
 		if (b == NULL) {
 			continue;
 		}
 		// NOTE(bill): Swap order
 		b->index = j;
-		proc->blocks.e[j++] = b;
+		proc->blocks[j++] = b;
 	}
 	proc->blocks.count = j;
 }
@@ -180,7 +183,7 @@ void ir_mark_reachable(irBlock *b) {
 	isize const BLACK = -1;
 	b->index = BLACK;
 	for_array(i, b->succs) {
-		irBlock *succ = b->succs.e[i];
+		irBlock *succ = b->succs[i];
 		if (succ->index == WHITE) {
 			ir_mark_reachable(succ);
 		}
@@ -191,23 +194,23 @@ void ir_remove_unreachable_blocks(irProcedure *proc) {
 	isize const WHITE =  0;
 	isize const BLACK = -1;
 	for_array(i, proc->blocks) {
-		proc->blocks.e[i]->index = WHITE;
+		proc->blocks[i]->index = WHITE;
 	}
 
-	ir_mark_reachable(proc->blocks.e[0]);
+	ir_mark_reachable(proc->blocks[0]);
 
 	for_array(i, proc->blocks) {
-		irBlock *b = proc->blocks.e[i];
+		irBlock *b = proc->blocks[i];
 		if (b->index == WHITE) {
 			for_array(j, b->succs) {
-				irBlock *c = b->succs.e[j];
+				irBlock *c = b->succs[j];
 				if (c->index == BLACK) {
 					ir_remove_pred(c, b);
 				}
 			}
 			// NOTE(bill): Mark as empty but don't actually free it
 			// As it's been allocated with an arena
-			proc->blocks.e[i] = NULL;
+			proc->blocks[i] = NULL;
 		}
 	}
 	ir_remove_dead_blocks(proc);
@@ -217,7 +220,7 @@ bool ir_opt_block_fusion(irProcedure *proc, irBlock *a) {
 	if (a->succs.count != 1) {
 		return false;
 	}
-	irBlock *b = a->succs.e[0];
+	irBlock *b = a->succs[0];
 	if (b->preds.count != 1) {
 		return false;
 	}
@@ -228,21 +231,21 @@ bool ir_opt_block_fusion(irProcedure *proc, irBlock *a) {
 
 	array_pop(&a->instrs); // Remove branch at end
 	for_array(i, b->instrs) {
-		array_add(&a->instrs, b->instrs.e[i]);
-		ir_set_instr_parent(b->instrs.e[i], a);
+		array_add(&a->instrs, b->instrs[i]);
+		ir_set_instr_parent(b->instrs[i], a);
 	}
 
 	array_clear(&a->succs);
 	for_array(i, b->succs) {
-		array_add(&a->succs, b->succs.e[i]);
+		array_add(&a->succs, b->succs[i]);
 	}
 
 	// Fix preds links
 	for_array(i, b->succs) {
-		ir_opt_block_replace_pred(b->succs.e[i], b, a);
+		ir_opt_block_replace_pred(b->succs[i], b, a);
 	}
 
-	proc->blocks.e[b->index] = NULL;
+	proc->blocks[b->index] = NULL;
 	return true;
 }
 
@@ -254,7 +257,7 @@ void ir_opt_blocks(irProcedure *proc) {
 	while (changed) {
 		changed = false;
 		for_array(i, proc->blocks) {
-			irBlock *b = proc->blocks.e[i];
+			irBlock *b = proc->blocks[i];
 			if (b == NULL) {
 				continue;
 			}
@@ -273,20 +276,20 @@ void ir_opt_blocks(irProcedure *proc) {
 void ir_opt_build_referrers(irProcedure *proc) {
 	gbTempArenaMemory tmp = gb_temp_arena_memory_begin(&proc->module->tmp_arena);
 
-	irValueArray ops = {0}; // NOTE(bill): Act as a buffer
-	array_init_reserve(&ops, proc->module->tmp_allocator, 64); // HACK(bill): This _could_ overflow the temp arena
+	Array<irValue *> ops = {0}; // NOTE(bill): Act as a buffer
+	array_init(&ops, proc->module->tmp_allocator, 64); // HACK(bill): This _could_ overflow the temp arena
 	for_array(i, proc->blocks) {
-		irBlock *b = proc->blocks.e[i];
+		irBlock *b = proc->blocks[i];
 		for_array(j, b->instrs) {
-			irValue *instr = b->instrs.e[j];
+			irValue *instr = b->instrs[j];
 			array_clear(&ops);
 			ir_opt_add_operands(&ops, &instr->Instr);
 			for_array(k, ops) {
-				irValue *op = ops.e[k];
+				irValue *op = ops[k];
 				if (op == NULL) {
 					continue;
 				}
-				irValueArray *refs = ir_value_referrers(op);
+				Array<irValue *> *refs = ir_value_referrers(op);
 				if (refs != NULL) {
 					array_add(refs, instr);
 				}
@@ -324,7 +327,7 @@ i32 ir_lt_depth_first_search(irLTState *lt, irBlock *p, i32 i, irBlock **preorde
 	lt->sdom[p->index] = p;
 	ir_lt_link(lt, NULL, p);
 	for_array(index, p->succs) {
-		irBlock *q = p->succs.e[index];
+		irBlock *q = p->succs[index];
 		if (lt->sdom[q->index] == NULL) {
 			lt->parent[q->index] = p;
 			i = ir_lt_depth_first_search(lt, q, i, preorder);
@@ -354,7 +357,7 @@ irDomPrePost ir_opt_number_dom_tree(irBlock *v, i32 pre, i32 post) {
 
 	v->dom.pre = pre++;
 	for_array(i, v->dom.children) {
-		result = ir_opt_number_dom_tree(v->dom.children.e[i], result.pre, result.post);
+		result = ir_opt_number_dom_tree(v->dom.children[i], result.pre, result.post);
 	}
 	v->dom.post = post++;
 
@@ -381,7 +384,7 @@ void ir_opt_build_dom_tree(irProcedure *proc) {
 
 	irBlock **preorder = &buf[3*n];
 	irBlock **buckets  = &buf[4*n];
-	irBlock *root = proc->blocks.e[0];
+	irBlock *root = proc->blocks[0];
 
 	// Step 1 - number vertices
 	i32 pre_num = ir_lt_depth_first_search(&lt, root, 0, preorder);
@@ -403,7 +406,7 @@ void ir_opt_build_dom_tree(irProcedure *proc) {
 		// Step 2 - Compute all sdoms
 		lt.sdom[w->index] = lt.parent[w->index];
 		for_array(pred_index, w->preds) {
-			irBlock *v = w->preds.e[pred_index];
+			irBlock *v = w->preds[pred_index];
 			irBlock *u = ir_lt_eval(&lt, v);
 			if (lt.sdom[u->index]->dom.pre < lt.sdom[w->index]->dom.pre) {
 				lt.sdom[w->index] = lt.sdom[u->index];
@@ -438,7 +441,7 @@ void ir_opt_build_dom_tree(irProcedure *proc) {
 			}
 
 			// Calculate children relation as inverse of idom
-			if (w->dom.idom->dom.children.e == NULL) {
+			if (w->dom.idom->dom.children.data == NULL) {
 				// TODO(bill): Is this good enough for memory allocations?
 				array_init(&w->dom.idom->dom.children, heap_allocator());
 			}
@@ -461,7 +464,7 @@ void ir_opt_tree(irGen *s) {
 	s->opt_called = true;
 
 	for_array(member_index, s->module.procs) {
-		irProcedure *proc = s->module.procs.e[member_index];
+		irProcedure *proc = s->module.procs[member_index];
 		if (proc->blocks.count == 0) { // Prototype/external procedure
 			continue;
 		}

src/main.c

@@ -1,340 +0,0 @@
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-#define USE_CUSTOM_BACKEND false
-
-#include "common.c"
-#include "timings.c"
-#include "build_settings.c"
-#include "tokenizer.c"
-#include "parser.c"
-#include "checker.c"
-#include "ssa.c"
-#include "ir.c"
-#include "ir_opt.c"
-#include "ir_print.c"
-// #include "vm.c"
-
-#if defined(GB_SYSTEM_WINDOWS)
-// NOTE(bill): `name` is used in debugging and profiling modes
-i32 system_exec_command_line_app(char *name, bool is_silent, char *fmt, ...) {
-	STARTUPINFOW start_info = {gb_size_of(STARTUPINFOW)};
-	PROCESS_INFORMATION pi = {0};
-	char cmd_line[4096] = {0};
-	isize cmd_len;
-	va_list va;
-	gbTempArenaMemory tmp;
-	String16 cmd;
-	i32 exit_code = 0;
-
-	start_info.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
-	start_info.wShowWindow = SW_SHOW;
-	start_info.hStdInput   = GetStdHandle(STD_INPUT_HANDLE);
-	start_info.hStdOutput  = GetStdHandle(STD_OUTPUT_HANDLE);
-	start_info.hStdError   = GetStdHandle(STD_ERROR_HANDLE);
-
-	va_start(va, fmt);
-	cmd_len = gb_snprintf_va(cmd_line, gb_size_of(cmd_line), fmt, va);
-	va_end(va);
-	// gb_printf("%.*s\n", cast(int)cmd_len, cmd_line);
-
-	tmp = gb_temp_arena_memory_begin(&string_buffer_arena);
-
-	cmd = string_to_string16(string_buffer_allocator, make_string(cast(u8 *)cmd_line, cmd_len-1));
-
-	if (CreateProcessW(NULL, cmd.text,
-	                   NULL, NULL, true, 0, NULL, NULL,
-	                   &start_info, &pi)) {
-		WaitForSingleObject(pi.hProcess, INFINITE);
-		GetExitCodeProcess(pi.hProcess, cast(DWORD *)&exit_code);
-
-		CloseHandle(pi.hProcess);
-		CloseHandle(pi.hThread);
-	} else {
-		// NOTE(bill): failed to create process
-		gb_printf_err("Failed to execute command:\n\t%s\n", cmd_line);
-		exit_code = -1;
-	}
-
-	gb_temp_arena_memory_end(tmp);
-	return exit_code;
-}
-#elif defined(GB_SYSTEM_OSX) || defined(GB_SYSTEM_UNIX)
-i32 system_exec_command_line_app(char *name, bool is_silent, char *fmt, ...) {
-
-	char cmd_line[4096] = {0};
-	isize cmd_len;
-	va_list va;
-	String cmd;
-	i32 exit_code = 0;
-
-	va_start(va, fmt);
-	cmd_len = gb_snprintf_va(cmd_line, gb_size_of(cmd_line), fmt, va);
-	va_end(va);
-	cmd = make_string(cast(u8 *)&cmd_line, cmd_len-1);
-
-	exit_code = system(&cmd_line[0]);
-
-	// pid_t pid = fork();
-	// int status = 0;
-
-	// if(pid == 0) {
-	// 	// in child, pid == 0.
-	// 	int ret = execvp(cmd.text, (char* const*) cmd.text);
-
-	// 	if(ret == -1) {
-	// 		gb_printf_err("Failed to execute command:\n\t%s\n", cmd_line);
-
-	// 		// we're in the child, so returning won't do us any good -- just quit.
-	// 		exit(-1);
-	// 	}
-
-	// 	// unreachable
-	// 	abort();
-	// } else {
-	// 	// wait for child to finish, then we can continue cleanup
-
-	// 	int s = 0;
-	// 	waitpid(pid, &s, 0);
-
-	// 	status = WEXITSTATUS(s);
-	// }
-
-	// exit_code = status;
-}
-#endif
-
-
-
-
-
-void print_usage_line(i32 indent, char *fmt, ...) {
-	while (indent --> 0) {
-		gb_printf_err("\t");
-	}
-	va_list va;
-	va_start(va, fmt);
-	gb_printf_err_va(fmt, va);
-	va_end(va);
-	gb_printf_err("\n");
-}
-
-void usage(char *argv0) {
-	print_usage_line(0, "%s is a tool for managing Odin source code", argv0);
-	print_usage_line(0, "Usage:");
-	print_usage_line(1, "%s command [arguments]", argv0);
-	print_usage_line(0, "Commands:");
-	print_usage_line(1, "build        compile .odin file as executable");
-	print_usage_line(1, "build_dll    compile .odin file as dll");
-	print_usage_line(1, "run          compile and run .odin file");
-	print_usage_line(1, "version      print version");
-}
-
-int main(int argc, char **argv) {
-	if (argc < 2) {
-		usage(argv[0]);
-		return 1;
-	}
-
-	Timings timings = {0};
-	timings_init(&timings, str_lit("Total Time"), 128);
-	// defer (timings_destroy(&timings));
-	init_string_buffer_memory();
-	init_scratch_memory(gb_megabytes(10));
-	init_global_error_collector();
-
-
-#if 1
-
-	init_build_context();
-
-	init_universal_scope();
-
-	char *init_filename = NULL;
-	bool run_output = false;
-	String arg1 = make_string_c(argv[1]);
-	if (str_eq(arg1, str_lit("run"))) {
-		if (argc != 3) {
-			usage(argv[0]);
-			return 1;
-		}
-		init_filename = argv[2];
-		run_output = true;
-	} else if (str_eq(arg1, str_lit("build_dll"))) {
-		if (argc != 3) {
-			usage(argv[0]);
-			return 1;
-		}
-		init_filename = argv[2];
-		build_context.is_dll = true;
-	} else if (str_eq(arg1, str_lit("build"))) {
-		if (argc != 3) {
-			usage(argv[0]);
-			return 1;
-		}
-		init_filename = argv[2];
-	} else if (str_eq(arg1, str_lit("version"))) {
-		gb_printf("%s version %.*s", argv[0], LIT(build_context.ODIN_VERSION));
-		return 0;
-	} else {
-		usage(argv[0]);
-		return 1;
-	}
-
-	// TODO(bill): prevent compiling without a linker
-
-	timings_start_section(&timings, str_lit("parse files"));
-
-	Parser parser = {0};
-	if (!init_parser(&parser)) {
-		return 1;
-	}
-	// defer (destroy_parser(&parser));
-
-	if (parse_files(&parser, init_filename) != ParseFile_None) {
-		return 1;
-	}
-
-
-#if 1
-	timings_start_section(&timings, str_lit("type check"));
-
-	Checker checker = {0};
-
-	init_checker(&checker, &parser, &build_context);
-	// defer (destroy_checker(&checker));
-
-	check_parsed_files(&checker);
-
-
-#endif
-#if USE_CUSTOM_BACKEND
-	if (global_error_collector.count != 0) {
-		return 1;
-	}
-
-	if (checker.parser->total_token_count < 2) {
-		return 1;
-	}
-
-	if (!ssa_generate(&parser, &checker.info)) {
-		return 1;
-	}
-#else
-	irGen ir_gen = {0};
-	if (!ir_gen_init(&ir_gen, &checker)) {
-		return 1;
-	}
-	// defer (ssa_gen_destroy(&ir_gen));
-
-	timings_start_section(&timings, str_lit("llvm ir gen"));
-	ir_gen_tree(&ir_gen);
-
-	timings_start_section(&timings, str_lit("llvm ir opt tree"));
-	ir_opt_tree(&ir_gen);
-
-	timings_start_section(&timings, str_lit("llvm ir print"));
-	print_llvm_ir(&ir_gen);
-
-	// prof_print_all();
-
-	#if 1
-	timings_start_section(&timings, str_lit("llvm-opt"));
-
-	char const *output_name = ir_gen.output_file.filename;
-	isize base_name_len = gb_path_extension(output_name)-1 - output_name;
-	String output = make_string(cast(u8 *)output_name, base_name_len);
-
-	i32 optimization_level = 0;
-	optimization_level = gb_clamp(optimization_level, 0, 3);
-
-	i32 exit_code = 0;
-	// For more passes arguments: http://llvm.org/docs/Passes.html
-	exit_code = system_exec_command_line_app("llvm-opt", false,
-		"\"%.*sbin/opt\" \"%s\" -o \"%.*s\".bc "
-		"-mem2reg "
-		"-memcpyopt "
-		"-die "
-		// "-dse "
-		// "-dce "
-		// "-S "
-		"",
-		LIT(build_context.ODIN_ROOT),
-		output_name, LIT(output));
-	if (exit_code != 0) {
-		return exit_code;
-	}
-
-	#if defined(GB_SYSTEM_WINDOWS)
-	timings_start_section(&timings, str_lit("llvm-llc"));
-	// For more arguments: http://llvm.org/docs/CommandGuide/llc.html
-	exit_code = system_exec_command_line_app("llvm-llc", false,
-		"\"%.*sbin/llc\" \"%.*s.bc\" -filetype=obj -O%d "
-		"%.*s "
-		// "-debug-pass=Arguments "
-		"",
-		LIT(build_context.ODIN_ROOT),
-		LIT(output),
-		optimization_level,
-		LIT(build_context.llc_flags));
-	if (exit_code != 0) {
-		return exit_code;
-	}
-
-	timings_start_section(&timings, str_lit("msvc-link"));
-
-	gbString lib_str = gb_string_make(heap_allocator(), "");
-	// defer (gb_string_free(lib_str));
-	char lib_str_buf[1024] = {0};
-	for_array(i, ir_gen.module.foreign_library_paths) {
-		String lib = ir_gen.module.foreign_library_paths.e[i];
-		// gb_printf_err("Linking lib: %.*s\n", LIT(lib));
-		isize len = gb_snprintf(lib_str_buf, gb_size_of(lib_str_buf),
-		                        " \"%.*s\"", LIT(lib));
-		lib_str = gb_string_appendc(lib_str, lib_str_buf);
-	}
-
-	char *output_ext = "exe";
-	char *link_settings = "";
-	if (build_context.is_dll) {
-		output_ext = "dll";
-		link_settings = "/DLL";
-	} else {
-		link_settings = "/ENTRY:mainCRTStartup";
-	}
-
-	exit_code = system_exec_command_line_app("msvc-link", true,
-		"link \"%.*s\".obj -OUT:\"%.*s.%s\" %s "
-		"/defaultlib:libcmt "
-		"/nologo /incremental:no /opt:ref /subsystem:CONSOLE "
-		" %.*s "
-		" %s "
-		"",
-		LIT(output), LIT(output), output_ext,
-		lib_str, LIT(build_context.link_flags),
-		link_settings
-		);
-	if (exit_code != 0) {
-		return exit_code;
-	}
-
-	// timings_print_all(&timings);
-
-	if (run_output) {
-		system_exec_command_line_app("odin run", false, "%.*s.exe", cast(int)base_name_len, output_name);
-	}
-
-	#else
-	#error Implement build stuff for this platform
-	#endif
-#endif
-#endif
-#endif
-
-	return 0;
-}
-
-#if defined(__cplusplus)
-}
-#endif

src/main.cpp

@@ -0,0 +1,679 @@
+#define USE_CUSTOM_BACKEND 0
+// #define PRINT_TIMINGS
+
+#include "common.cpp"
+#include "timings.cpp"
+#include "build_settings.cpp"
+#include "tokenizer.cpp"
+#include "parser.cpp"
+#include "docs.cpp"
+#include "checker.cpp"
+#include "ssa.cpp"
+#include "ir.cpp"
+#include "ir_opt.cpp"
+#include "ir_print.cpp"
+
+#if defined(GB_SYSTEM_WINDOWS)
+// NOTE(bill): `name` is used in debugging and profiling modes
+i32 system_exec_command_line_app(char *name, bool is_silent, char *fmt, ...) {
+	STARTUPINFOW start_info = {gb_size_of(STARTUPINFOW)};
+	PROCESS_INFORMATION pi = {0};
+	char cmd_line[4096] = {0};
+	isize cmd_len;
+	va_list va;
+	gbTempArenaMemory tmp;
+	String16 cmd;
+	i32 exit_code = 0;
+
+	start_info.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
+	start_info.wShowWindow = SW_SHOW;
+	start_info.hStdInput   = GetStdHandle(STD_INPUT_HANDLE);
+	start_info.hStdOutput  = GetStdHandle(STD_OUTPUT_HANDLE);
+	start_info.hStdError   = GetStdHandle(STD_ERROR_HANDLE);
+
+	va_start(va, fmt);
+	cmd_len = gb_snprintf_va(cmd_line, gb_size_of(cmd_line), fmt, va);
+	va_end(va);
+
+	// gb_printf_err("%.*s\n", cast(int)cmd_len, cmd_line);
+
+	tmp = gb_temp_arena_memory_begin(&string_buffer_arena);
+
+	cmd = string_to_string16(string_buffer_allocator, make_string(cast(u8 *)cmd_line, cmd_len-1));
+
+	if (CreateProcessW(NULL, cmd.text,
+	                   NULL, NULL, true, 0, NULL, NULL,
+	                   &start_info, &pi)) {
+		WaitForSingleObject(pi.hProcess, INFINITE);
+		GetExitCodeProcess(pi.hProcess, cast(DWORD *)&exit_code);
+
+		CloseHandle(pi.hProcess);
+		CloseHandle(pi.hThread);
+	} else {
+		// NOTE(bill): failed to create process
+		gb_printf_err("Failed to execute command:\n\t%s\n", cmd_line);
+		exit_code = -1;
+	}
+
+	gb_temp_arena_memory_end(tmp);
+	return exit_code;
+}
+#elif defined(GB_SYSTEM_OSX) || defined(GB_SYSTEM_UNIX)
+i32 system_exec_command_line_app(char *name, bool is_silent, char *fmt, ...) {
+
+	char cmd_line[4096] = {0};
+	isize cmd_len;
+	va_list va;
+	String cmd;
+	i32 exit_code = 0;
+
+	va_start(va, fmt);
+	cmd_len = gb_snprintf_va(cmd_line, gb_size_of(cmd_line), fmt, va);
+	va_end(va);
+	cmd = make_string(cast(u8 *)&cmd_line, cmd_len-1);
+
+	exit_code = system(&cmd_line[0]);
+
+	// pid_t pid = fork();
+	// int status = 0;
+
+	// if(pid == 0) {
+	// 	// in child, pid == 0.
+	// 	int ret = execvp(cmd.text, (char* const*) cmd.text);
+
+	// 	if(ret == -1) {
+	// 		gb_printf_err("Failed to execute command:\n\t%s\n", cmd_line);
+
+	// 		// we're in the child, so returning won't do us any good -- just quit.
+	// 		exit(-1);
+	// 	}
+
+	// 	// unreachable
+	// 	abort();
+	// } else {
+	// 	// wait for child to finish, then we can continue cleanup
+
+	// 	int s = 0;
+	// 	waitpid(pid, &s, 0);
+
+	// 	status = WEXITSTATUS(s);
+	// }
+
+	// exit_code = status;
+
+	return exit_code;
+}
+#endif
+
+
+
+Array<String> setup_args(int argc, char **argv) {
+	Array<String> args = {};
+	gbAllocator a = heap_allocator();
+	int i;
+
+#if defined(GB_SYSTEM_WINDOWS)
+	int wargc = 0;
+	wchar_t **wargv = command_line_to_wargv(GetCommandLineW(), &wargc);
+	array_init(&args, a, wargc);
+	for (i = 0; i < wargc; i++) {
+		wchar_t *warg = wargv[i];
+		isize wlen = string16_len(warg);
+		String16 wstr = make_string16(warg, wlen);
+		String arg = string16_to_string(a, wstr);
+		if (arg.len > 0) {
+			array_add(&args, arg);
+		}
+	}
+
+#else
+	array_init(&args, a, argc);
+	for (i = 0; i < argc; i++) {
+		String arg = make_string_c(argv[i]);
+		if (arg.len > 0) {
+			array_add(&args, arg);
+		}
+	}
+#endif
+	return args;
+}
+
+
+
+
+
+void print_usage_line(i32 indent, char *fmt, ...) {
+	while (indent --> 0) {
+		gb_printf_err("\t");
+	}
+	va_list va;
+	va_start(va, fmt);
+	gb_printf_err_va(fmt, va);
+	va_end(va);
+	gb_printf_err("\n");
+}
+
+void usage(String argv0) {
+	print_usage_line(0, "%.*s is a tool for managing Odin source code", LIT(argv0));
+	print_usage_line(0, "Usage:");
+	print_usage_line(1, "%.*s command [arguments]", LIT(argv0));
+	print_usage_line(0, "Commands:");
+	print_usage_line(1, "build        compile .odin file as executable");
+	print_usage_line(1, "build_dll    compile .odin file as dll");
+	print_usage_line(1, "run          compile and run .odin file");
+	print_usage_line(1, "docs         generate documentation for a .odin file");
+	print_usage_line(1, "version      print version");
+}
+
+
+
+enum BuildFlagKind {
+	BuildFlag_Invalid,
+
+	BuildFlag_OptimizationLevel,
+
+	BuildFlag_COUNT,
+};
+
+enum BuildFlagParamKind {
+	BuildFlagParam_None,
+
+	BuildFlagParam_Boolean,
+	BuildFlagParam_Integer,
+	BuildFlagParam_Float,
+	BuildFlagParam_String,
+
+	BuildFlagParam_COUNT,
+};
+
+struct BuildFlag {
+	BuildFlagKind      kind;
+	String             name;
+	BuildFlagParamKind param_kind;
+};
+
+
+void add_flag(Array<BuildFlag> *build_flags, BuildFlagKind kind, String name, BuildFlagParamKind param_kind) {
+	BuildFlag flag = {kind, name, param_kind};
+	array_add(build_flags, flag);
+}
+
+bool parse_build_flags(Array<String> args) {
+	Array<BuildFlag> build_flags = {};
+	array_init(&build_flags, heap_allocator(), BuildFlag_COUNT);
+	add_flag(&build_flags, BuildFlag_OptimizationLevel, str_lit("opt"), BuildFlagParam_Integer);
+
+	Array<String> flag_args = args;
+	flag_args.data  += 3;
+	flag_args.count -= 3;
+
+	bool set_flags[BuildFlag_COUNT] = {};
+
+	bool bad_flags = false;
+	for_array(i, flag_args) {
+		String flag = flag_args[i];
+		if (flag[0] != '-') {
+			gb_printf_err("Invalid flag: %.*s\n", LIT(flag));
+		} else {
+			String name = substring(flag, 1, flag.len);
+			isize end = 0;
+			for (; end < name.len; end++) {
+				if (name[end] == '=') {
+					break;
+				}
+			}
+			name.len = end;
+			String param = substring(flag, 2+end, flag.len);
+
+			bool found = false;
+			for_array(build_flag_index, build_flags) {
+				BuildFlag bf = build_flags[build_flag_index];
+				if (bf.name == name) {
+					found = true;
+					if (set_flags[bf.kind]) {
+						gb_printf_err("Previous flag set: `%.*s`\n", LIT(name));
+						bad_flags = true;
+					} else {
+						ExactValue value = {};
+						bool ok = false;
+						if (bf.param_kind == BuildFlagParam_None) {
+							if (param.len == 0) {
+								ok = true;
+							} else {
+								gb_printf_err("Flag `%.*s` was not expecting a parameter `%.*s`\n", LIT(name), LIT(param));
+								bad_flags = true;
+							}
+						} else {
+							if (param.len == 0) {
+								gb_printf_err("Flag missing for `%.*s`\n", LIT(name));
+								bad_flags = true;
+							} else {
+								ok = true;
+								switch (bf.param_kind) {
+								default: ok = false; break;
+								case BuildFlagParam_Boolean: {
+									if (param == "t") {
+										value = exact_value_bool(true);
+									} else if (param == "T") {
+										value = exact_value_bool(true);
+									} else if (param == "true") {
+										value = exact_value_bool(true);
+									} else if (param == "TRUE") {
+										value = exact_value_bool(true);
+									} else if (param == "1") {
+										value = exact_value_bool(true);
+									} else if (param == "f") {
+										value = exact_value_bool(false);
+									} else if (param == "F") {
+										value = exact_value_bool(false);
+									} else if (param == "false") {
+										value = exact_value_bool(false);
+									} else if (param == "FALSE") {
+										value = exact_value_bool(false);
+									} else if (param == "0") {
+										value = exact_value_bool(false);
+									} else {
+										gb_printf_err("Invalid flag parameter for `%.*s` = `%.*s`\n", LIT(name), LIT(param));
+									}
+								} break;
+								case BuildFlagParam_Integer:
+									value = exact_value_integer_from_string(param);
+									break;
+								case BuildFlagParam_Float:
+									value = exact_value_float_from_string(param);
+									break;
+								case BuildFlagParam_String:
+									value = exact_value_string(param);
+									break;
+								}
+							}
+
+						}
+						if (ok) {
+							switch (bf.kind) {
+							case BuildFlag_OptimizationLevel:
+								if (value.kind == ExactValue_Integer) {
+									build_context.optimization_level = cast(i32)i128_to_i64(value.value_integer);
+								} else {
+									gb_printf_err("%.*s expected an integer, got %.*s", LIT(name), LIT(param));
+									bad_flags = true;
+									ok = false;
+								}
+								break;
+							}
+						}
+
+
+						set_flags[bf.kind] = ok;
+					}
+					break;
+				}
+			}
+			if (!found) {
+				gb_printf_err("Unknown flag: `%.*s`\n", LIT(name));
+				bad_flags = true;
+			}
+		}
+	}
+
+	return !bad_flags;
+}
+
+
+
+
+int main(int arg_count, char **arg_ptr) {
+	if (arg_count < 2) {
+		usage(make_string_c(arg_ptr[0]));
+		return 1;
+	}
+
+	Timings timings = {0};
+	timings_init(&timings, str_lit("Total Time"), 128);
+	defer (timings_destroy(&timings));
+	init_string_buffer_memory();
+	init_scratch_memory(gb_megabytes(10));
+	init_global_error_collector();
+
+	Array<String> args = setup_args(arg_count, arg_ptr);
+
+
+#if 1
+
+	String init_filename = {};
+	bool run_output = false;
+	if (args[1] == "run") {
+		if (args.count < 3) {
+			usage(args[0]);
+			return 1;
+		}
+		init_filename = args[2];
+		run_output = true;
+	} else if (args[1] == "build_dll") {
+		if (args.count < 3) {
+			usage(args[0]);
+			return 1;
+		}
+		init_filename = args[2];
+		build_context.is_dll = true;
+	} else if (args[1] == "build") {
+		if (args.count < 3) {
+			usage(args[0]);
+			return 1;
+		}
+		init_filename = args[2];
+	} else if (args[1] == "docs") {
+		if (args.count < 3) {
+			usage(args[0]);
+			return 1;
+		}
+
+		init_filename = args[2];
+		build_context.generate_docs = true;
+		#if 1
+		print_usage_line(0, "Documentation generation is not yet supported");
+		return 1;
+		#endif
+	} else if (args[1] == "version") {
+		gb_printf("%s version %.*s\n", args[0], LIT(build_context.ODIN_VERSION));
+		return 0;
+	} else {
+		usage(args[0]);
+		return 1;
+	}
+
+	if (!parse_build_flags(args)) {
+		return 1;
+	}
+
+
+	init_build_context();
+	if (build_context.word_size == 4) {
+		print_usage_line(0, "%s 32-bit is not yet supported", args[0]);
+		return 1;
+	}
+	init_universal_scope();
+
+	// TODO(bill): prevent compiling without a linker
+
+	timings_start_section(&timings, str_lit("parse files"));
+
+	Parser parser = {0};
+	if (!init_parser(&parser)) {
+		return 1;
+	}
+	defer (destroy_parser(&parser));
+
+	if (parse_files(&parser, init_filename) != ParseFile_None) {
+		return 1;
+	}
+
+	if (build_context.generate_docs) {
+		generate_documentation(&parser);
+		return 0;
+	}
+
+#if 1
+	timings_start_section(&timings, str_lit("type check"));
+
+	Checker checker = {0};
+
+	init_checker(&checker, &parser);
+	defer (destroy_checker(&checker));
+
+	check_parsed_files(&checker);
+
+
+#endif
+#if defined(USE_CUSTOM_BACKEND) && USE_CUSTOM_BACKEND
+	if (global_error_collector.count != 0) {
+		return 1;
+	}
+
+	if (checker.parser->total_token_count < 2) {
+		return 1;
+	}
+
+	if (!ssa_generate(&parser, &checker.info)) {
+		return 1;
+	}
+#else
+	irGen ir_gen = {0};
+	if (!ir_gen_init(&ir_gen, &checker)) {
+		return 1;
+	}
+	defer (ir_gen_destroy(&ir_gen));
+
+	timings_start_section(&timings, str_lit("llvm ir gen"));
+	ir_gen_tree(&ir_gen);
+
+	timings_start_section(&timings, str_lit("llvm ir opt tree"));
+	ir_opt_tree(&ir_gen);
+
+	timings_start_section(&timings, str_lit("llvm ir print"));
+	print_llvm_ir(&ir_gen);
+
+	// prof_print_all();
+
+	#if 1
+	timings_start_section(&timings, str_lit("llvm-opt"));
+
+	String output_name = ir_gen.output_name;
+	String output_base = ir_gen.output_base;
+	int base_name_len = output_base.len;
+
+	build_context.optimization_level = gb_clamp(build_context.optimization_level, 0, 3);
+
+	i32 exit_code = 0;
+
+	#if defined(GB_SYSTEM_WINDOWS)
+		// For more passes arguments: http://llvm.org/docs/Passes.html
+		exit_code = system_exec_command_line_app("llvm-opt", false,
+			"\"%.*sbin/opt\" \"%.*s\".ll -o \"%.*s\".bc %.*s "
+			"-mem2reg "
+			"-memcpyopt "
+			"-die "
+			"",
+			LIT(build_context.ODIN_ROOT),
+			LIT(output_base), LIT(output_base),
+			LIT(build_context.opt_flags));
+		if (exit_code != 0) {
+			return exit_code;
+		}
+	#else
+		// NOTE(zangent): This is separate because it seems that LLVM tools are packaged
+		//   with the Windows version, while they will be system-provided on MacOS and GNU/Linux
+		exit_code = system_exec_command_line_app("llvm-opt", false,
+			"opt \"%.*s\".ll -o \"%.*s\".bc %.*s "
+			"-mem2reg "
+			"-memcpyopt "
+			"-die "
+			#if defined(GB_SYSTEM_OSX)
+				// This sets a requirement of Mountain Lion and up, but the compiler doesn't work without this limit.
+				// NOTE: If you change this (although this minimum is as low as you can go with Odin working)
+				//       make sure to also change the `macosx_version_min` param passed to `llc`
+				"-mtriple=x86_64-apple-macosx10.8 "
+			#endif
+			"",
+			LIT(output_base), LIT(output_base),
+			LIT(build_context.opt_flags));
+		if (exit_code != 0) {
+			return exit_code;
+		}
+	#endif
+
+	#if defined(GB_SYSTEM_WINDOWS)
+		timings_start_section(&timings, str_lit("llvm-llc"));
+		// For more arguments: http://llvm.org/docs/CommandGuide/llc.html
+		exit_code = system_exec_command_line_app("llvm-llc", false,
+			"\"%.*sbin/llc\" \"%.*s.bc\" -filetype=obj -O%d "
+			"%.*s "
+			// "-debug-pass=Arguments "
+			"",
+			LIT(build_context.ODIN_ROOT),
+			LIT(output_base),
+			build_context.optimization_level,
+			LIT(build_context.llc_flags));
+		if (exit_code != 0) {
+			return exit_code;
+		}
+
+		timings_start_section(&timings, str_lit("msvc-link"));
+
+		gbString lib_str = gb_string_make(heap_allocator(), "");
+		defer (gb_string_free(lib_str));
+		char lib_str_buf[1024] = {0};
+		for_array(i, ir_gen.module.foreign_library_paths) {
+			String lib = ir_gen.module.foreign_library_paths[i];
+			// gb_printf_err("Linking lib: %.*s\n", LIT(lib));
+			isize len = gb_snprintf(lib_str_buf, gb_size_of(lib_str_buf),
+			                        " \"%.*s\"", LIT(lib));
+			lib_str = gb_string_appendc(lib_str, lib_str_buf);
+		}
+
+		char *output_ext = "exe";
+		char *link_settings = "";
+		if (build_context.is_dll) {
+			output_ext = "dll";
+			link_settings = "/DLL";
+		} else {
+			link_settings = "/ENTRY:mainCRTStartup";
+		}
+
+		exit_code = system_exec_command_line_app("msvc-link", true,
+			"link \"%.*s\".obj -OUT:\"%.*s.%s\" %s "
+			"/defaultlib:libcmt "
+			// "/nodefaultlib "
+			"/nologo /incremental:no /opt:ref /subsystem:CONSOLE "
+			" %.*s "
+			" %s "
+			"",
+			LIT(output_base), LIT(output_base), output_ext,
+			lib_str, LIT(build_context.link_flags),
+			link_settings
+			);
+		if (exit_code != 0) {
+			return exit_code;
+		}
+
+	#if defined(PRINT_TIMINGS)
+		timings_print_all(&timings);
+	#endif
+
+
+		if (run_output) {
+			system_exec_command_line_app("odin run", false, "%.*s.exe", LIT(output_base));
+		}
+
+	#else
+
+		// NOTE(zangent): Linux / Unix is unfinished and not tested very well.
+
+
+		timings_start_section(&timings, str_lit("llvm-llc"));
+		// For more arguments: http://llvm.org/docs/CommandGuide/llc.html
+		exit_code = system_exec_command_line_app("llc", false,
+			"llc \"%.*s.bc\" -filetype=obj -relocation-model=pic -O%d "
+			"%.*s "
+			// "-debug-pass=Arguments "
+			"",
+			LIT(output_base),
+			build_context.optimization_level,
+			LIT(build_context.llc_flags));
+		if (exit_code != 0) {
+			return exit_code;
+		}
+
+		timings_start_section(&timings, str_lit("ld-link"));
+
+		gbString lib_str = gb_string_make(heap_allocator(), "");
+		defer (gb_string_free(lib_str));
+		char lib_str_buf[1024] = {0};
+		for_array(i, ir_gen.module.foreign_library_paths) {
+			String lib = ir_gen.module.foreign_library_paths[i];
+
+			// NOTE(zangent): Sometimes, you have to use -framework on MacOS.
+			//   This allows you to specify '-f' in a #foreign_system_library,
+			//   without having to implement any new syntax specifically for MacOS.
+			#if defined(GB_SYSTEM_OSX)
+				isize len;
+				if(lib.len > 2 && lib[0] == '-' && lib[1] == 'f') {
+					len = gb_snprintf(lib_str_buf, gb_size_of(lib_str_buf),
+					                        " -framework %.*s ", (int)(lib.len) - 2, lib.text + 2);
+				} else {
+					len = gb_snprintf(lib_str_buf, gb_size_of(lib_str_buf),
+					                        " -l%.*s ", LIT(lib));
+				}
+			#else
+				isize len = gb_snprintf(lib_str_buf, gb_size_of(lib_str_buf),
+				                        " -l%.*s ", LIT(lib));
+			#endif
+			lib_str = gb_string_appendc(lib_str, lib_str_buf);
+		}
+
+		// Unlike the Win32 linker code, the output_ext includes the dot, because
+		// typically executable files on *NIX systems don't have extensions.
+		char *output_ext = "";
+		char *link_settings = "";
+		char *linker;
+		if (build_context.is_dll) {
+			// Shared libraries are .dylib on MacOS and .so on Linux.
+			// TODO(zangent): Is that statement entirely truthful?
+			#if defined(GB_SYSTEM_OSX)
+				output_ext = ".dylib";
+			#else
+				output_ext = ".so";
+			#endif
+
+			link_settings = "-shared";
+		} else {
+			// TODO: Do I need anything here?
+			link_settings = "";
+		}
+
+		#if defined(GB_SYSTEM_OSX)
+			linker = "ld";
+		#else
+			// TODO(zangent): Figure out how to make ld work on Linux.
+			//   It probably has to do with including the entire CRT, but
+			//   that's quite a complicated issue to solve while remaining distro-agnostic.
+			//   Clang can figure out linker flags for us, and that's good enough _for now_.
+			linker = "clang -Wno-unused-command-line-argument";
+		#endif
+
+		exit_code = system_exec_command_line_app("ld-link", true,
+			"%s \"%.*s\".o -o \"%.*s%s\" %s "
+			"-lc -lm "
+			" %.*s "
+			" %s "
+			#if defined(GB_SYSTEM_OSX)
+				// This sets a requirement of Mountain Lion and up, but the compiler doesn't work without this limit.
+				// NOTE: If you change this (although this minimum is as low as you can go with Odin working)
+				//       make sure to also change the `mtriple` param passed to `opt`
+				" -macosx_version_min 10.8.0 "
+				// This points the linker to where the entry point is
+				" -e _main "
+			#endif
+			, linker, LIT(output_base), LIT(output_base), output_ext,
+			lib_str, LIT(build_context.link_flags),
+			link_settings
+			);
+		if (exit_code != 0) {
+			return exit_code;
+		}
+
+	#if defined(PRINT_TIMINGS)
+		timings_print_all(&timings);
+	#endif
+
+		if (run_output) {
+			system_exec_command_line_app("odin run", false, "%.*s", LIT(output_base));
+		}
+
+	#endif
+#endif
+#endif
+#endif
+
+	return 0;
+}

src/map.c

@@ -1,361 +0,0 @@
-/*
-	Example of usage:
-
-	#define MAP_TYPE String
-	#define MAP_PROC map_string_
-	#define MAP_NAME MapString
-	#include "map.c"
-*/
-// A `Map` is an unordered hash table which can allow for a key to point to multiple values
-// with the use of the `multi_*` procedures.
-// TODO(bill): I should probably allow the `multi_*` stuff to be #ifdefed out
-
-#ifndef MAP_UTIL_STUFF
-#define MAP_UTIL_STUFF
-// NOTE(bill): This util stuff is the same for every `Map`
-typedef struct MapFindResult {
-	isize hash_index;
-	isize entry_prev;
-	isize entry_index;
-} MapFindResult;
-
-typedef enum HashKeyKind {
-	HashKey_Default,
-	HashKey_String,
-	HashKey_Pointer,
-} HashKeyKind;
-
-typedef struct HashKey {
-	HashKeyKind kind;
-	u64         key;
-	union {
-		String string; // if String, s.len > 0
-		void * ptr;
-	};
-} HashKey;
-
-gb_inline HashKey hashing_proc(void const *data, isize len) {
-	HashKey h = {HashKey_Default};
-	h.kind = HashKey_Default;
-	// h.key = gb_murmur64(data, len);
-	h.key = gb_fnv64a(data, len);
-	return h;
-}
-
-gb_inline HashKey hash_string(String s) {
-	HashKey h = hashing_proc(s.text, s.len);
-	h.kind = HashKey_String;
-	h.string = s;
-	return h;
-}
-
-gb_inline HashKey hash_pointer(void *ptr) {
-	HashKey h = {HashKey_Default};
-	h.key = cast(u64)cast(uintptr)ptr;
-	h.ptr = ptr;
-	h.kind = HashKey_Default;
-	return h;
-}
-
-bool hash_key_equal(HashKey a, HashKey b) {
-	if (a.key == b.key) {
-		// NOTE(bill): If two string's hashes collide, compare the strings themselves
-		if (a.kind == HashKey_String) {
-			if (b.kind == HashKey_String) {
-				return str_eq(a.string, b.string);
-			}
-			return false;
-		}
-		return true;
-	}
-	return false;
-}
-#endif
-
-#define _J2_IND(a, b) a##b
-#define _J2(a, b) _J2_IND(a, b)
-
-/*
-MAP_TYPE - Entry type
-MAP_PROC - Function prefix (e.g. entity_map_)
-MAP_NAME - Name of Map (e.g. EntityMap)
-*/
-#define MAP_ENTRY _J2(MAP_NAME,Entry)
-
-typedef struct MAP_ENTRY {
-	HashKey  key;
-	isize    next;
-	MAP_TYPE value;
-} MAP_ENTRY;
-
-typedef struct MAP_NAME {
-	Array(isize)     hashes;
-	Array(MAP_ENTRY) entries;
-} MAP_NAME;
-
-void      _J2(MAP_PROC,init)             (MAP_NAME *h, gbAllocator a);
-void      _J2(MAP_PROC,init_with_reserve)(MAP_NAME *h, gbAllocator a, isize capacity);
-void      _J2(MAP_PROC,destroy)          (MAP_NAME *h);
-MAP_TYPE *_J2(MAP_PROC,get)              (MAP_NAME *h, HashKey key);
-void      _J2(MAP_PROC,set)              (MAP_NAME *h, HashKey key, MAP_TYPE value);
-void      _J2(MAP_PROC,remove)           (MAP_NAME *h, HashKey key);
-void      _J2(MAP_PROC,clear)            (MAP_NAME *h);
-void      _J2(MAP_PROC,grow)             (MAP_NAME *h);
-void      _J2(MAP_PROC,rehash)           (MAP_NAME *h, isize new_count);
-
-// Mutlivalued map procedure
-MAP_ENTRY *_J2(MAP_PROC,multi_find_first)(MAP_NAME *h, HashKey key);
-MAP_ENTRY *_J2(MAP_PROC,multi_find_next) (MAP_NAME *h, MAP_ENTRY *e);
-
-isize _J2(MAP_PROC,multi_count)     (MAP_NAME *h, HashKey key);
-void  _J2(MAP_PROC,multi_get_all)   (MAP_NAME *h, HashKey key, MAP_TYPE *items);
-void  _J2(MAP_PROC,multi_insert)    (MAP_NAME *h, HashKey key, MAP_TYPE value);
-void  _J2(MAP_PROC,multi_remove)    (MAP_NAME *h, HashKey key, MAP_ENTRY *e);
-void  _J2(MAP_PROC,multi_remove_all)(MAP_NAME *h, HashKey key);
-
-
-
-gb_inline void _J2(MAP_PROC,init)(MAP_NAME *h, gbAllocator a) {
-	array_init(&h->hashes,  a);
-	array_init(&h->entries, a);
-}
-
-gb_inline void _J2(MAP_PROC,init_with_reserve)(MAP_NAME *h, gbAllocator a, isize capacity) {
-	array_init_reserve(&h->hashes,  a, capacity);
-	array_init_reserve(&h->entries, a, capacity);
-}
-
-gb_inline void _J2(MAP_PROC,destroy)(MAP_NAME *h) {
-	array_free(&h->entries);
-	array_free(&h->hashes);
-}
-
-gb_internal isize _J2(MAP_PROC,_add_entry)(MAP_NAME *h, HashKey key) {
-	MAP_ENTRY e = {0};
-	e.key = key;
-	e.next = -1;
-	array_add(&h->entries, e);
-	return h->entries.count-1;
-}
-
-gb_internal MapFindResult _J2(MAP_PROC,_find)(MAP_NAME *h, HashKey key) {
-	MapFindResult fr = {-1, -1, -1};
-	if (h->hashes.count > 0) {
-		fr.hash_index  = key.key % h->hashes.count;
-		fr.entry_index = h->hashes.e[fr.hash_index];
-		while (fr.entry_index >= 0) {
-			if (hash_key_equal(h->entries.e[fr.entry_index].key, key)) {
-				return fr;
-			}
-			fr.entry_prev = fr.entry_index;
-			fr.entry_index = h->entries.e[fr.entry_index].next;
-		}
-	}
-	return fr;
-}
-
-gb_internal MapFindResult _J2(MAP_PROC,_find_from_entry)(MAP_NAME *h, MAP_ENTRY *e) {
-	MapFindResult fr = {-1, -1, -1};
-	if (h->hashes.count > 0) {
-		fr.hash_index  = e->key.key % h->hashes.count;
-		fr.entry_index = h->hashes.e[fr.hash_index];
-		while (fr.entry_index >= 0) {
-			if (&h->entries.e[fr.entry_index] == e) {
-				return fr;
-			}
-			fr.entry_prev = fr.entry_index;
-			fr.entry_index = h->entries.e[fr.entry_index].next;
-		}
-	}
-	return fr;
-}
-
-
-gb_internal b32 _J2(MAP_PROC,_full)(MAP_NAME *h) {
-	return 0.75f * h->hashes.count <= h->entries.count;
-}
-
-gb_inline void _J2(MAP_PROC,grow)(MAP_NAME *h) {
-	isize new_count = ARRAY_GROW_FORMULA(h->entries.count);
-	_J2(MAP_PROC,rehash)(h, new_count);
-}
-
-void _J2(MAP_PROC,rehash)(MAP_NAME *h, isize new_count) {
-	isize i, j;
-	MAP_NAME nh = {0};
-	_J2(MAP_PROC,init)(&nh, h->hashes.allocator);
-	array_resize(&nh.hashes, new_count);
-	array_reserve(&nh.entries, h->entries.count);
-	for (i = 0; i < new_count; i++) {
-		nh.hashes.e[i] = -1;
-	}
-	for (i = 0; i < h->entries.count; i++) {
-		MAP_ENTRY *e = &h->entries.e[i];
-		MapFindResult fr;
-		if (nh.hashes.count == 0) {
-			_J2(MAP_PROC,grow)(&nh);
-		}
-		fr = _J2(MAP_PROC,_find)(&nh, e->key);
-		j = _J2(MAP_PROC,_add_entry)(&nh, e->key);
-		if (fr.entry_prev < 0) {
-			nh.hashes.e[fr.hash_index] = j;
-		} else {
-			nh.entries.e[fr.entry_prev].next = j;
-		}
-		nh.entries.e[j].next = fr.entry_index;
-		nh.entries.e[j].value = e->value;
-		if (_J2(MAP_PROC,_full)(&nh)) {
-			_J2(MAP_PROC,grow)(&nh);
-		}
-	}
-	_J2(MAP_PROC,destroy)(h);
-	*h = nh;
-}
-
-gb_inline MAP_TYPE *_J2(MAP_PROC,get)(MAP_NAME *h, HashKey key) {
-	isize index = _J2(MAP_PROC,_find)(h, key).entry_index;
-	if (index >= 0) {
-		return &h->entries.e[index].value;
-	}
-	return NULL;
-}
-
-void _J2(MAP_PROC,set)(MAP_NAME *h, HashKey key, MAP_TYPE value) {
-	isize index;
-	MapFindResult fr;
-	if (h->hashes.count == 0)
-		_J2(MAP_PROC,grow)(h);
-	fr = _J2(MAP_PROC,_find)(h, key);
-	if (fr.entry_index >= 0) {
-		index = fr.entry_index;
-	} else {
-		index = _J2(MAP_PROC,_add_entry)(h, key);
-		if (fr.entry_prev >= 0) {
-			h->entries.e[fr.entry_prev].next = index;
-		} else {
-			h->hashes.e[fr.hash_index] = index;
-		}
-	}
-	h->entries.e[index].value = value;
-
-	if (_J2(MAP_PROC,_full)(h)) {
-		_J2(MAP_PROC,grow)(h);
-	}
-}
-
-
-
-void _J2(MAP_PROC,_erase)(MAP_NAME *h, MapFindResult fr) {
-	MapFindResult last;
-	if (fr.entry_prev < 0) {
-		h->hashes.e[fr.hash_index] = h->entries.e[fr.entry_index].next;
-	} else {
-		h->entries.e[fr.entry_prev].next = h->entries.e[fr.entry_index].next;
-	}
-	if (fr.entry_index == h->entries.count-1) {
-		array_pop(&h->entries);
-		return;
-	}
-	h->entries.e[fr.entry_index] = h->entries.e[h->entries.count-1];
-	last = _J2(MAP_PROC,_find)(h, h->entries.e[fr.entry_index].key);
-	if (last.entry_prev >= 0) {
-		h->entries.e[last.entry_prev].next = fr.entry_index;
-	} else {
-		h->hashes.e[last.hash_index] = fr.entry_index;
-	}
-}
-
-void _J2(MAP_PROC,remove)(MAP_NAME *h, HashKey key) {
-	MapFindResult fr = _J2(MAP_PROC,_find)(h, key);
-	if (fr.entry_index >= 0) {
-		_J2(MAP_PROC,_erase)(h, fr);
-	}
-}
-
-gb_inline void _J2(MAP_PROC,clear)(MAP_NAME *h) {
-	array_clear(&h->hashes);
-	array_clear(&h->entries);
-}
-
-
-#if 1
-MAP_ENTRY *_J2(MAP_PROC,multi_find_first)(MAP_NAME *h, HashKey key) {
-	isize i = _J2(MAP_PROC,_find)(h, key).entry_index;
-	if (i < 0) {
-		return NULL;
-	}
-	return &h->entries.e[i];
-}
-
-MAP_ENTRY *_J2(MAP_PROC,multi_find_next)(MAP_NAME *h, MAP_ENTRY *e) {
-	isize i = e->next;
-	while (i >= 0) {
-		if (hash_key_equal(h->entries.e[i].key, e->key)) {
-			return &h->entries.e[i];
-		}
-		i = h->entries.e[i].next;
-	}
-	return NULL;
-}
-
-isize _J2(MAP_PROC,multi_count)(MAP_NAME *h, HashKey key) {
-	isize count = 0;
-	MAP_ENTRY *e = _J2(MAP_PROC,multi_find_first)(h, key);
-	while (e != NULL) {
-		count++;
-		e = _J2(MAP_PROC,multi_find_next)(h, e);
-	}
-	return count;
-}
-
-void _J2(MAP_PROC,multi_get_all)(MAP_NAME *h, HashKey key, MAP_TYPE *items) {
-	isize i = 0;
-	MAP_ENTRY *e = _J2(MAP_PROC,multi_find_first)(h, key);
-	while (e != NULL) {
-		items[i++] = e->value;
-		e = _J2(MAP_PROC,multi_find_next)(h, e);
-	}
-}
-
-void _J2(MAP_PROC,multi_insert)(MAP_NAME *h, HashKey key, MAP_TYPE value) {
-	MapFindResult fr;
-	isize i;
-	if (h->hashes.count == 0) {
-		_J2(MAP_PROC,grow)(h);
-	}
-	// Make
-	fr = _J2(MAP_PROC,_find)(h, key);
-	i = _J2(MAP_PROC,_add_entry)(h, key);
-	if (fr.entry_prev < 0) {
-		h->hashes.e[fr.hash_index] = i;
-	} else {
-		h->entries.e[fr.entry_prev].next = i;
-	}
-	h->entries.e[i].next = fr.entry_index;
-	h->entries.e[i].value = value;
-	// Grow if needed
-	if (_J2(MAP_PROC,_full)(h)) {
-		_J2(MAP_PROC,grow)(h);
-	}
-}
-
-void _J2(MAP_PROC,multi_remove)(MAP_NAME *h, HashKey key, MAP_ENTRY *e) {
-	MapFindResult fr = _J2(MAP_PROC,_find_from_entry)(h, e);
-	if (fr.entry_index >= 0) {
-		_J2(MAP_PROC,_erase)(h, fr);
-	}
-}
-
-void _J2(MAP_PROC,multi_remove_all)(MAP_NAME *h, HashKey key) {
-	while (_J2(MAP_PROC,get)(h, key) != NULL) {
-		_J2(MAP_PROC,remove)(h, key);
-	}
-}
-#endif
-
-
-#undef _J2
-#undef MAP_TYPE
-#undef MAP_PROC
-#undef MAP_NAME
-#undef MAP_ENTRY

src/map.cpp

@@ -0,0 +1,381 @@
+// A `Map` is an unordered hash table which can allow for a key to point to multiple values
+// with the use of the `multi_*` procedures.
+// TODO(bill): I should probably allow the `multi_map_*` stuff to be #ifdefed out
+
+#ifndef MAP_UTIL_STUFF
+#define MAP_UTIL_STUFF
+// NOTE(bill): This util stuff is the same for every `Map`
+struct MapFindResult {
+	isize hash_index;
+	isize entry_prev;
+	isize entry_index;
+};
+
+enum HashKeyKind {
+	HashKey_Default,
+	HashKey_String,
+	HashKey_Ptr,
+	HashKey_PtrAndId,
+};
+
+struct PtrAndId {
+	void *ptr;
+	u32   id;
+};
+
+struct HashKey {
+	HashKeyKind kind;
+	// u128        key;
+	u64         key;
+	union {
+		String       string; // if String, s.len > 0
+		void *       ptr;
+		PtrAndId ptr_and_id;
+	};
+};
+
+gb_inline HashKey hashing_proc(void const *data, isize len) {
+	HashKey h = {HashKey_Default};
+	h.kind = HashKey_Default;
+	// h.key = u128_from_u64(gb_fnv64a(data, len));
+	h.key = gb_fnv64a(data, len);
+
+	return h;
+}
+
+gb_inline HashKey hash_string(String s) {
+	HashKey h = hashing_proc(s.text, s.len);
+	h.kind = HashKey_String;
+	h.string = s;
+	return h;
+}
+
+gb_inline HashKey hash_pointer(void *ptr) {
+	HashKey h = {HashKey_Ptr};
+	h.key = cast(u64)cast(uintptr)ptr;
+	h.ptr = ptr;
+	return h;
+}
+gb_inline HashKey hash_ptr_and_id(void *ptr, u32 id) {
+	HashKey h = {HashKey_PtrAndId};
+	h.key = cast(u64)cast(uintptr)ptr;
+	h.ptr_and_id.ptr = ptr;
+	h.ptr_and_id.id  = id;
+	return h;
+}
+
+bool hash_key_equal(HashKey a, HashKey b) {
+	if (a.key == b.key) {
+		// NOTE(bill): If two string's hashes collide, compare the strings themselves
+		if (a.kind == HashKey_String) {
+			if (b.kind == HashKey_String) {
+				return a.string == b.string;
+			}
+			return false;
+		} else if (a.kind == HashKey_PtrAndId) {
+			if (b.kind == HashKey_PtrAndId) {
+				return a.ptr_and_id.id == b.ptr_and_id.id;
+			}
+			return false;
+		}
+		return true;
+	}
+	return false;
+}
+bool operator==(HashKey a, HashKey b) { return hash_key_equal(a, b); }
+bool operator!=(HashKey a, HashKey b) { return !hash_key_equal(a, b); }
+
+#endif
+
+template <typename T>
+struct MapEntry {
+	HashKey  key;
+	isize    next;
+	T        value;
+};
+
+template <typename T>
+struct Map {
+	Array<isize>        hashes;
+	Array<MapEntry<T> > entries;
+};
+
+
+template <typename T> void map_init             (Map<T> *h, gbAllocator a);
+template <typename T> void map_init_with_reserve(Map<T> *h, gbAllocator a, isize capacity);
+template <typename T> void map_destroy          (Map<T> *h);
+template <typename T> T *  map_get              (Map<T> *h, HashKey key);
+template <typename T> void map_set              (Map<T> *h, HashKey key, T const &value);
+template <typename T> void map_remove           (Map<T> *h, HashKey key);
+template <typename T> void map_clear            (Map<T> *h);
+template <typename T> void map_grow             (Map<T> *h);
+template <typename T> void map_rehash           (Map<T> *h, isize new_count);
+
+// Mutlivalued map procedure
+template <typename T> MapEntry<T> * multi_map_find_first(Map<T> *h, HashKey key);
+template <typename T> MapEntry<T> * multi_map_find_next (Map<T> *h, MapEntry<T> *e);
+
+template <typename T> isize multi_map_count     (Map<T> *h, HashKey key);
+template <typename T> void  multi_map_get_all   (Map<T> *h, HashKey key, T *items);
+template <typename T> void  multi_map_insert    (Map<T> *h, HashKey key, T const &value);
+template <typename T> void  multi_map_remove    (Map<T> *h, HashKey key, MapEntry<T> *e);
+template <typename T> void  multi_map_remove_all(Map<T> *h, HashKey key);
+
+
+template <typename T>
+gb_inline void map_init(Map<T> *h, gbAllocator a) {
+	array_init(&h->hashes,  a);
+	array_init(&h->entries, a);
+}
+
+template <typename T>
+gb_inline void map_init_with_reserve(Map<T> *h, gbAllocator a, isize capacity) {
+	array_init(&h->hashes,  a, capacity);
+	array_init(&h->entries, a, capacity);
+}
+
+template <typename T>
+gb_inline void map_destroy(Map<T> *h) {
+	array_free(&h->entries);
+	array_free(&h->hashes);
+}
+
+template <typename T>
+gb_internal isize map__add_entry(Map<T> *h, HashKey key) {
+	MapEntry<T> e = {};
+	e.key = key;
+	e.next = -1;
+	array_add(&h->entries, e);
+	return h->entries.count-1;
+}
+
+template <typename T>
+gb_internal MapFindResult map__find(Map<T> *h, HashKey key) {
+	MapFindResult fr = {-1, -1, -1};
+	if (h->hashes.count > 0) {
+		// fr.hash_index  = u128_to_i64(key.key % u128_from_i64(h->hashes.count));
+		fr.hash_index = key.key % h->hashes.count;
+		fr.entry_index = h->hashes[fr.hash_index];
+		while (fr.entry_index >= 0) {
+			if (hash_key_equal(h->entries[fr.entry_index].key, key)) {
+				return fr;
+			}
+			fr.entry_prev = fr.entry_index;
+			fr.entry_index = h->entries[fr.entry_index].next;
+		}
+	}
+	return fr;
+}
+
+template <typename T>
+gb_internal MapFindResult map__find_from_entry(Map<T> *h, MapEntry<T> *e) {
+	MapFindResult fr = {-1, -1, -1};
+	if (h->hashes.count > 0) {
+		fr.hash_index  = e->key.key % h->hashes.count;
+		fr.entry_index = h->hashes[fr.hash_index];
+		while (fr.entry_index >= 0) {
+			if (&h->entries[fr.entry_index] == e) {
+				return fr;
+			}
+			fr.entry_prev = fr.entry_index;
+			fr.entry_index = h->entries[fr.entry_index].next;
+		}
+	}
+	return fr;
+}
+
+template <typename T>
+gb_internal b32 map__full(Map<T> *h) {
+	return 0.75f * h->hashes.count <= h->entries.count;
+}
+
+template <typename T>
+gb_inline void map_grow(Map<T> *h) {
+	isize new_count = ARRAY_GROW_FORMULA(h->entries.count);
+	map_rehash(h, new_count);
+}
+
+template <typename T>
+void map_rehash(Map<T> *h, isize new_count) {
+	isize i, j;
+	Map<T> nh = {};
+	map_init(&nh, h->hashes.allocator);
+	array_resize(&nh.hashes, new_count);
+	array_reserve(&nh.entries, h->entries.count);
+	for (i = 0; i < new_count; i++) {
+		nh.hashes[i] = -1;
+	}
+	for (i = 0; i < h->entries.count; i++) {
+		MapEntry<T> *e = &h->entries[i];
+		MapFindResult fr;
+		if (nh.hashes.count == 0) {
+			map_grow(&nh);
+		}
+		fr = map__find(&nh, e->key);
+		j = map__add_entry(&nh, e->key);
+		if (fr.entry_prev < 0) {
+			nh.hashes[fr.hash_index] = j;
+		} else {
+			nh.entries[fr.entry_prev].next = j;
+		}
+		nh.entries[j].next = fr.entry_index;
+		nh.entries[j].value = e->value;
+		if (map__full(&nh)) {
+			map_grow(&nh);
+		}
+	}
+	map_destroy(h);
+	*h = nh;
+}
+
+template <typename T>
+gb_inline T *map_get(Map<T> *h, HashKey key) {
+	isize index = map__find(h, key).entry_index;
+	if (index >= 0) {
+		return &h->entries[index].value;
+	}
+	return NULL;
+}
+
+template <typename T>
+void map_set(Map<T> *h, HashKey key, T const &value) {
+	isize index;
+	MapFindResult fr;
+	if (h->hashes.count == 0)
+		map_grow(h);
+	fr = map__find(h, key);
+	if (fr.entry_index >= 0) {
+		index = fr.entry_index;
+	} else {
+		index = map__add_entry(h, key);
+		if (fr.entry_prev >= 0) {
+			h->entries[fr.entry_prev].next = index;
+		} else {
+			h->hashes[fr.hash_index] = index;
+		}
+	}
+	h->entries[index].value = value;
+
+	if (map__full(h)) {
+		map_grow(h);
+	}
+}
+
+
+template <typename T>
+void map__erase(Map<T> *h, MapFindResult fr) {
+	MapFindResult last;
+	if (fr.entry_prev < 0) {
+		h->hashes[fr.hash_index] = h->entries[fr.entry_index].next;
+	} else {
+		h->entries[fr.entry_prev].next = h->entries[fr.entry_index].next;
+	}
+	if (fr.entry_index == h->entries.count-1) {
+		array_pop(&h->entries);
+		return;
+	}
+	h->entries[fr.entry_index] = h->entries[h->entries.count-1];
+	last = map__find(h, h->entries[fr.entry_index].key);
+	if (last.entry_prev >= 0) {
+		h->entries[last.entry_prev].next = fr.entry_index;
+	} else {
+		h->hashes[last.hash_index] = fr.entry_index;
+	}
+}
+
+template <typename T>
+void map_remove(Map<T> *h, HashKey key) {
+	MapFindResult fr = map__find(h, key);
+	if (fr.entry_index >= 0) {
+		map__erase(h, fr);
+	}
+}
+
+template <typename T>
+gb_inline void map_clear(Map<T> *h) {
+	array_clear(&h->hashes);
+	array_clear(&h->entries);
+}
+
+
+#if 1
+template <typename T>
+MapEntry<T> *multi_map_find_first(Map<T> *h, HashKey key) {
+	isize i = map__find(h, key).entry_index;
+	if (i < 0) {
+		return NULL;
+	}
+	return &h->entries[i];
+}
+
+template <typename T>
+MapEntry<T> *multi_map_find_next(Map<T> *h, MapEntry<T> *e) {
+	isize i = e->next;
+	while (i >= 0) {
+		if (hash_key_equal(h->entries[i].key, e->key)) {
+			return &h->entries[i];
+		}
+		i = h->entries[i].next;
+	}
+	return NULL;
+}
+
+template <typename T>
+isize multi_map_count(Map<T> *h, HashKey key) {
+	isize count = 0;
+	MapEntry<T> *e = multi_map_find_first(h, key);
+	while (e != NULL) {
+		count++;
+		e = multi_map_find_next(h, e);
+	}
+	return count;
+}
+
+template <typename T>
+void multi_map_get_all(Map<T> *h, HashKey key, T *items) {
+	isize i = 0;
+	MapEntry<T> *e = multi_map_find_first(h, key);
+	while (e != NULL) {
+		items[i++] = e->value;
+		e = multi_map_find_next(h, e);
+	}
+}
+
+template <typename T>
+void multi_map_insert(Map<T> *h, HashKey key, T const &value) {
+	MapFindResult fr;
+	isize i;
+	if (h->hashes.count == 0) {
+		map_grow(h);
+	}
+	// Make
+	fr = map__find(h, key);
+	i = map__add_entry(h, key);
+	if (fr.entry_prev < 0) {
+		h->hashes[fr.hash_index] = i;
+	} else {
+		h->entries[fr.entry_prev].next = i;
+	}
+	h->entries[i].next = fr.entry_index;
+	h->entries[i].value = value;
+	// Grow if needed
+	if (map__full(h)) {
+		map_grow(h);
+	}
+}
+
+template <typename T>
+void multi_map_remove(Map<T> *h, HashKey key, MapEntry<T> *e) {
+	MapFindResult fr = map__find_from_entry(h, e);
+	if (fr.entry_index >= 0) {
+		map__erase(h, fr);
+	}
+}
+
+template <typename T>
+void multi_map_remove_all(Map<T> *h, HashKey key) {
+	while (map_get(h, key) != NULL) {
+		map_remove(h, key);
+	}
+}
+#endif

src/murmurhash3.cpp

@@ -0,0 +1,225 @@
+//-----------------------------------------------------------------------------
+// MurmurHash3 was written by Austin Appleby, and is placed in the public
+// domain. The author hereby disclaims copyright to this source code.
+
+// Note - The x86 and x64 versions do _not_ produce the same results, as the
+// algorithms are optimized for their respective platforms. You can still
+// compile and run any of them on any platform, but your performance with the
+// non-native version will be less than optimal.
+
+#if defined(_MSC_VER)
+#define ROTL32(x,y) _rotl(x,y)
+#define ROTL64(x,y) _rotl64(x,y)
+#else
+
+gb_inline u32 rotl32(u32 x, i8 r) {
+	return (x << r) | (x >> (32-r));
+}
+gb_inline u64 rotl64(u64 x, i8 r) {
+	return (x << r) | (x >> (64-r));
+}
+
+#define ROTL32(x,y) rotl32(x,y)
+#define ROTL64(x,y) rotl64(x,y)
+#endif
+
+gb_inline u32 fmix32(u32 h) {
+	h ^= h >> 16;
+	h *= 0x85ebca6b;
+	h ^= h >> 13;
+	h *= 0xc2b2ae35;
+	h ^= h >> 16;
+	return h;
+}
+
+gb_inline u64 fmix64(u64 k) {
+	k ^= k >> 33;
+	k *= 0xff51afd7ed558ccdULL;
+	k ^= k >> 33;
+	k *= 0xc4ceb9fe1a85ec53ULL;
+	k ^= k >> 33;
+	return k;
+}
+
+gb_inline u32 mm3_getblock32(u32 const *p, isize i) {
+	return p[i];
+}
+gb_inline u64 mm3_getblock64(u64 const *p, isize i) {
+	return p[i];
+}
+
+void MurmurHash3_x64_128(void const *key, isize len, u32 seed, void *out) {
+	u8 const * data = cast(u8 const *)key;
+	isize nblocks = len / 16;
+
+	u64 h1 = seed;
+	u64 h2 = seed;
+
+	u64 const c1 = 0x87c37b91114253d5ULL;
+	u64 const c2 = 0x4cf5ad432745937fULL;
+
+	u64 const * blocks = cast(u64 const *)data;
+
+	for (isize i = 0; i < nblocks; i++) {
+		u64 k1 = mm3_getblock64(blocks, i*2 + 0);
+		u64 k2 = mm3_getblock64(blocks, i*2 + 1);
+
+		k1 *= c1; k1 = ROTL64(k1, 31); k1 *= c2; h1 ^= k1;
+		h1 = ROTL64(h1,27); h1 += h2; h1 = h1*5+0x52dce729;
+		k2 *= c2; k2  = ROTL64(k2,33); k2 *= c1; h2 ^= k2;
+		h2 = ROTL64(h2,31); h2 += h1; h2 = h2*5+0x38495ab5;
+	}
+
+	u8 const * tail = cast(u8 const *)(data + nblocks*16);
+
+	u64 k1 = 0;
+	u64 k2 = 0;
+
+	switch(len & 15) {
+	case 15: k2 ^= ((u64)tail[14]) << 48;
+	case 14: k2 ^= ((u64)tail[13]) << 40;
+	case 13: k2 ^= ((u64)tail[12]) << 32;
+	case 12: k2 ^= ((u64)tail[11]) << 24;
+	case 11: k2 ^= ((u64)tail[10]) << 16;
+	case 10: k2 ^= ((u64)tail[ 9]) << 8;
+	case  9: k2 ^= ((u64)tail[ 8]) << 0;
+	         k2 *= c2; k2 = ROTL64(k2,33); k2 *= c1; h2 ^= k2;
+
+	case  8: k1 ^= ((u64)tail[ 7]) << 56;
+	case  7: k1 ^= ((u64)tail[ 6]) << 48;
+	case  6: k1 ^= ((u64)tail[ 5]) << 40;
+	case  5: k1 ^= ((u64)tail[ 4]) << 32;
+	case  4: k1 ^= ((u64)tail[ 3]) << 24;
+	case  3: k1 ^= ((u64)tail[ 2]) << 16;
+	case  2: k1 ^= ((u64)tail[ 1]) << 8;
+	case  1: k1 ^= ((u64)tail[ 0]) << 0;
+	         k1 *= c1; k1 = ROTL64(k1,31); k1 *= c2; h1 ^= k1;
+	}
+
+	h1 ^= len;
+	h2 ^= len;
+
+	h1 += h2;
+	h2 += h1;
+
+	h1 = fmix64(h1);
+	h2 = fmix64(h2);
+
+	h1 += h2;
+	h2 += h1;
+
+	((u64 *)out)[0] = h1;
+	((u64 *)out)[1] = h2;
+}
+
+void MurmurHash3_x86_128(void const *key, isize len, u32 seed, void *out) {
+	u8 const * data = cast(u8 * const)key;
+	isize nblocks = len / 16;
+
+	u32 h1 = seed;
+	u32 h2 = seed;
+	u32 h3 = seed;
+	u32 h4 = seed;
+
+	u32 const c1 = 0x239b961b;
+	u32 const c2 = 0xab0e9789;
+	u32 const c3 = 0x38b34ae5;
+	u32 const c4 = 0xa1e38b93;
+
+	//----------
+	// body
+
+	u32 const * blocks = cast(u32 const *)(data + nblocks*16);
+
+	for (isize i = -nblocks; i != 0; i++) {
+		u32 k1 = mm3_getblock32(blocks, i*4 + 0);
+		u32 k2 = mm3_getblock32(blocks, i*4 + 1);
+		u32 k3 = mm3_getblock32(blocks, i*4 + 2);
+		u32 k4 = mm3_getblock32(blocks, i*4 + 3);
+
+		k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
+
+		h1 = ROTL32(h1,19); h1 += h2; h1 = h1*5+0x561ccd1b;
+
+		k2 *= c2; k2 = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
+
+		h2 = ROTL32(h2,17); h2 += h3; h2 = h2*5+0x0bcaa747;
+
+		k3 *= c3; k3 = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
+
+		h3 = ROTL32(h3,15); h3 += h4; h3 = h3*5+0x96cd1c35;
+
+		k4 *= c4; k4 = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
+
+		h4 = ROTL32(h4,13); h4 += h1; h4 = h4*5+0x32ac3b17;
+	}
+
+	//----------
+	// tail
+
+	u8 const * tail = cast(u8 const *)(data + nblocks*16);
+
+	u32 k1 = 0;
+	u32 k2 = 0;
+	u32 k3 = 0;
+	u32 k4 = 0;
+
+	switch(len & 15) {
+	case 15: k4 ^= tail[14] << 16;
+	case 14: k4 ^= tail[13] << 8;
+	case 13: k4 ^= tail[12] << 0;
+	         k4 *= c4; k4 = ROTL32(k4,18); k4 *= c1; h4 ^= k4;
+
+	case 12: k3 ^= tail[11] << 24;
+	case 11: k3 ^= tail[10] << 16;
+	case 10: k3 ^= tail[ 9] << 8;
+	case  9: k3 ^= tail[ 8] << 0;
+	         k3 *= c3; k3 = ROTL32(k3,17); k3 *= c4; h3 ^= k3;
+
+	case  8: k2 ^= tail[ 7] << 24;
+	case  7: k2 ^= tail[ 6] << 16;
+	case  6: k2 ^= tail[ 5] << 8;
+	case  5: k2 ^= tail[ 4] << 0;
+	         k2 *= c2; k2 = ROTL32(k2,16); k2 *= c3; h2 ^= k2;
+
+	case  4: k1 ^= tail[ 3] << 24;
+	case  3: k1 ^= tail[ 2] << 16;
+	case  2: k1 ^= tail[ 1] << 8;
+	case  1: k1 ^= tail[ 0] << 0;
+	         k1 *= c1; k1 = ROTL32(k1,15); k1 *= c2; h1 ^= k1;
+	};
+
+	//----------
+	// finalization
+
+	h1 ^= len; h2 ^= len; h3 ^= len; h4 ^= len;
+
+	h1 += h2; h1 += h3; h1 += h4;
+	h2 += h1; h3 += h1; h4 += h1;
+
+	h1 = fmix32(h1);
+	h2 = fmix32(h2);
+	h3 = fmix32(h3);
+	h4 = fmix32(h4);
+
+	h1 += h2; h1 += h3; h1 += h4;
+	h2 += h1; h3 += h1; h4 += h1;
+
+
+	((u32 *)out)[0] = h1;
+	((u32 *)out)[1] = h2;
+	((u32 *)out)[2] = h3;
+	((u32 *)out)[3] = h4;
+}
+
+gb_inline u128 MurmurHash3_128(void const *key, isize len, u32 seed) {
+	u128 res;
+#if defined(GB_ARCH_64_BIT)
+	MurmurHash3_x64_128(key, len, seed, &res);
+#else
+	MurmurHash3_x86_128(key, len, seed, &res);
+#endif
+	return res;
+}
+
+

src/ssa_op.cpp

@@ -7,7 +7,6 @@
 \
 	SSA_OP(SP)    /* Stack Pointer */\
 	SSA_OP(SB)    /* Stack Base */\
-	SSA_OP(Addr)  /* Address of something - special rules for certain types when loading and storing (e.g. Maps) */\
 \
 	SSA_OP(Local)\
 	SSA_OP(Global)\
@@ -268,7 +267,6 @@ enum ssaOp {
 	SSA_OPS
 #undef SSA_OP
 };
-typedef enum ssaOp ssaOp;
 
 String const ssa_op_strings[] = {
 #define SSA_OP(k) {cast(u8 *)#k, gb_size_of(#k)-1},

src/string.cpp

@@ -1,5 +1,5 @@
-gb_global gbArena string_buffer_arena = {0};
-gb_global gbAllocator string_buffer_allocator = {0};
+gb_global gbArena string_buffer_arena = {};
+gb_global gbAllocator string_buffer_allocator = {};
 
 void init_string_buffer_memory(void) {
 	// NOTE(bill): This should be enough memory for file systems
@@ -9,21 +9,41 @@ void init_string_buffer_memory(void) {
 
 
 // NOTE(bill): Used for UTF-8 strings
-typedef struct String {
+struct String {
 	u8 *  text;
 	isize len;
-} String;
+
+	u8 &operator[](isize i) {
+		GB_ASSERT(0 <= i && i < len);
+		return text[i];
+	}
+	u8 const &operator[](isize i) const {
+		GB_ASSERT(0 <= i && i < len);
+		return text[i];
+	}
+};
 // NOTE(bill): used for printf style arguments
 #define LIT(x) ((int)(x).len), (x).text
 #define STR_LIT(c_str) {cast(u8 *)c_str, gb_size_of(c_str)-1}
-#define str_lit(c_str) (String){cast(u8 *)c_str, gb_size_of(c_str)-1}
-
+#if defined(GB_COMPILER_MSVC) && _MSC_VER < 1700
+	#define str_lit(c_str) make_string(cast(u8 *)c_str, gb_size_of(c_str)-1)
+#else
+	#define str_lit(c_str) String{cast(u8 *)c_str, gb_size_of(c_str)-1}
+#endif
 
 // NOTE(bill): String16 is only used for Windows due to its file directories
-typedef struct String16 {
+struct String16 {
 	wchar_t *text;
 	isize    len;
-} String16;
+	wchar_t &operator[](isize i) {
+		GB_ASSERT(0 <= i && i < len);
+		return text[i];
+	}
+	wchar_t const &operator[](isize i) const {
+		GB_ASSERT(0 <= i && i < len);
+		return text[i];
+	}
+};
 
 
 gb_inline String make_string(u8 *text, isize len) {
@@ -44,11 +64,29 @@ gb_inline String16 make_string16(wchar_t *text, isize len) {
 	return s;
 }
 
+isize string16_len(wchar_t *s) {
+	if (s == NULL) {
+		return 0;
+	}
+	wchar_t *p = s;
+	while (*p) {
+		p++;
+	}
+	return p - s;
+}
+
 
 gb_inline String make_string_c(char *text) {
 	return make_string(cast(u8 *)cast(void *)text, gb_strlen(text));
 }
 
+String substring(String s, isize lo, isize hi) {
+	isize max = s.len;
+	GB_ASSERT(lo <= hi && hi <= max);
+
+	return make_string(s.text+lo, hi-lo);
+}
+
 
 
 
@@ -56,8 +94,8 @@ gb_inline bool str_eq_ignore_case(String a, String b) {
 	if (a.len == b.len) {
 		isize i;
 		for (i = 0; i < a.len; i++) {
-			char x = cast(char)a.text[i];
-			char y = cast(char)b.text[i];
+			char x = cast(char)a[i];
+			char y = cast(char)b[i];
 			if (gb_char_to_lower(x) != gb_char_to_lower(y))
 				return false;
 		}
@@ -88,16 +126,16 @@ int string_compare(String x, String y) {
 		for (; curr_block < fast; curr_block++) {
 			if (la[curr_block] ^ lb[curr_block]) {
 				for (pos = curr_block*gb_size_of(isize); pos < n; pos++) {
-					if (x.text[pos] ^ y.text[pos]) {
-						return cast(int)x.text[pos] - cast(int)y.text[pos];
+					if (x[pos] ^ y[pos]) {
+						return cast(int)x[pos] - cast(int)y[pos];
 					}
 				}
 			}
 		}
 
 		for (; offset < n; offset++) {
-			if (x.text[offset] ^ y.text[offset]) {
-				return cast(int)x.text[offset] - cast(int)y.text[offset];
+			if (x[offset] ^ y[offset]) {
+				return cast(int)x[offset] - cast(int)y[offset];
 			}
 		}
 	}
@@ -117,13 +155,29 @@ gb_inline bool str_gt(String a, String b) { return string_compare(a, b) > 0;
 gb_inline bool str_le(String a, String b) { return string_compare(a, b) <= 0;    }
 gb_inline bool str_ge(String a, String b) { return string_compare(a, b) >= 0;    }
 
+bool operator == (String a, String b) { return str_eq(a, b); }
+bool operator != (String a, String b) { return str_ne(a, b); }
+bool operator <  (String a, String b) { return str_lt(a, b); }
+bool operator >  (String a, String b) { return str_gt(a, b); }
+bool operator <= (String a, String b) { return str_le(a, b); }
+bool operator >= (String a, String b) { return str_ge(a, b); }
+
+template <isize N> bool operator == (String a, char const (&b)[N]) { return str_eq(a, make_string(cast(u8 *)b, N-1)); }
+template <isize N> bool operator != (String a, char const (&b)[N]) { return str_ne(a, make_string(cast(u8 *)b, N-1)); }
+template <isize N> bool operator <  (String a, char const (&b)[N]) { return str_lt(a, make_string(cast(u8 *)b, N-1)); }
+template <isize N> bool operator >  (String a, char const (&b)[N]) { return str_gt(a, make_string(cast(u8 *)b, N-1)); }
+template <isize N> bool operator <= (String a, char const (&b)[N]) { return str_le(a, make_string(cast(u8 *)b, N-1)); }
+template <isize N> bool operator >= (String a, char const (&b)[N]) { return str_ge(a, make_string(cast(u8 *)b, N-1)); }
+
+
+
 gb_inline bool str_has_prefix(String s, String prefix) {
 	isize i;
 	if (prefix.len < s.len) {
 		return false;
 	}
 	for (i = 0; i < prefix.len; i++) {
-		if (s.text[i] != prefix.text[i]) {
+		if (s[i] != prefix[i]) {
 			return false;
 		}
 	}
@@ -135,9 +189,9 @@ gb_inline isize string_extension_position(String str) {
 	isize i = str.len;
 	bool seen_dot = false;
 	while (i --> 0) {
-		if (str.text[i] == GB_PATH_SEPARATOR)
+		if (str[i] == GB_PATH_SEPARATOR)
 			break;
-		if (str.text[i] == '.') {
+		if (str[i] == '.') {
 			dot_pos = i;
 			break;
 		}
@@ -147,11 +201,11 @@ gb_inline isize string_extension_position(String str) {
 }
 
 String string_trim_whitespace(String str) {
-	while (str.len > 0 && rune_is_whitespace(str.text[str.len-1])) {
+	while (str.len > 0 && rune_is_whitespace(str[str.len-1])) {
 		str.len--;
 	}
 
-	while (str.len > 0 && rune_is_whitespace(str.text[0])) {
+	while (str.len > 0 && rune_is_whitespace(str[0])) {
 		str.text++;
 		str.len--;
 	}
@@ -166,7 +220,7 @@ gb_inline bool string_has_extension(String str, String ext) {
 	}
 	isize len = str.len;
 	for (isize i = len-1; i >= 0; i--) {
-		if (str.text[i] == '.') {
+		if (str[i] == '.') {
 			break;
 		}
 		len--;
@@ -182,12 +236,28 @@ gb_inline bool string_has_extension(String str, String ext) {
 bool string_contains_char(String s, u8 c) {
 	isize i;
 	for (i = 0; i < s.len; i++) {
-		if (s.text[i] == c)
+		if (s[i] == c)
 			return true;
 	}
 	return false;
 }
 
+String filename_from_path(String s) {
+	isize i = string_extension_position(s);
+	if (i > 0) {
+		isize j = 0;
+		s.len = i;
+		for (j = i-1; j >= 0; j--) {
+			if (s[j] == '/' ||
+				s[j] == '\\') {
+				break;
+			}
+		}
+		s.text += j+1;
+		s.len = i-j-1;
+	}
+	return make_string(NULL, 0);
+}
 
 
 
@@ -207,7 +277,7 @@ bool string_contains_char(String s, u8 c) {
 
 	#include <iconv.h>
 
-	int convert_multibyte_to_widechar(char *multibyte_input, int input_length, wchar_t *output, int output_size) {
+	int convert_multibyte_to_widechar(char *multibyte_input, usize input_length, wchar_t *output, usize output_size) {
 		iconv_t conv = iconv_open("WCHAR_T", "UTF-8");
 		size_t result = iconv(conv, cast(char **)&multibyte_input, &input_length, cast(char **)&output, &output_size);
 		iconv_close(conv);
@@ -215,7 +285,7 @@ bool string_contains_char(String s, u8 c) {
 		return (int) result;
 	}
 
-	int convert_widechar_to_multibyte(wchar_t* widechar_input, int input_length, char* output, int output_size) {
+	int convert_widechar_to_multibyte(wchar_t* widechar_input, usize input_length, char* output, usize output_size) {
 		iconv_t conv = iconv_open("UTF-8", "WCHAR_T");
 		size_t result = iconv(conv, (char**) &widechar_input, &input_length, (char**) &output, &output_size);
 		iconv_close(conv);
@@ -255,6 +325,7 @@ String16 string_to_string16(gbAllocator a, String s) {
 	return make_string16(text, len-1);
 }
 
+
 String string16_to_string(gbAllocator a, String16 s) {
 	int len, len1;
 	u8 *text;
@@ -267,6 +338,7 @@ String string16_to_string(gbAllocator a, String16 s) {
 	if (len == 0) {
 		return make_string(NULL, 0);
 	}
+	len += 1; // NOTE(bill): It needs an extra 1 for some reason
 
 	text = gb_alloc_array(a, u8, len+1);
 
@@ -299,18 +371,18 @@ String string16_to_string(gbAllocator a, String16 s) {
 bool unquote_char(String s, u8 quote, Rune *rune, bool *multiple_bytes, String *tail_string) {
 	u8 c;
 
-	if (s.text[0] == quote &&
+	if (s[0] == quote &&
 	    (quote == '\'' || quote == '"')) {
 		return false;
-	} else if (s.text[0] >= 0x80) {
+	} else if (s[0] >= 0x80) {
 		Rune r = -1;
 		isize size = gb_utf8_decode(s.text, s.len, &r);
 		*rune = r;
 		*multiple_bytes = true;
 		*tail_string = make_string(s.text+size, s.len-size);
 		return true;
-	} else if (s.text[0] != '\\') {
-		*rune = s.text[0];
+	} else if (s[0] != '\\') {
+		*rune = s[0];
 		*tail_string = make_string(s.text+1, s.len-1);
 		return true;
 	}
@@ -318,7 +390,7 @@ bool unquote_char(String s, u8 quote, Rune *rune, bool *multiple_bytes, String *
 	if (s.len <= 1) {
 		return false;
 	}
-	c = s.text[1];
+	c = s[1];
 	s = make_string(s.text+2, s.len-2);
 
 	switch (c) {
@@ -356,7 +428,7 @@ bool unquote_char(String s, u8 quote, Rune *rune, bool *multiple_bytes, String *
 			return false;
 		}
 		for (i = 0; i < 2; i++) {
-			i32 d = gb_digit_to_int(s.text[i]);
+			i32 d = gb_digit_to_int(s[i]);
 			if (d < 0 || d > 7) {
 				return false;
 			}
@@ -384,7 +456,7 @@ bool unquote_char(String s, u8 quote, Rune *rune, bool *multiple_bytes, String *
 			return false;
 		}
 		for (i = 0; i < count; i++) {
-			i32 d = gb_hex_digit_to_int(s.text[i]);
+			i32 d = gb_hex_digit_to_int(s[i]);
 			if (d < 0) {
 				return false;
 			}
@@ -417,8 +489,8 @@ i32 unquote_string(gbAllocator a, String *s_) {
 	if (n < 2) {
 		return 0;
 	}
-	quote = s.text[0];
-	if (quote != s.text[n-1]) {
+	quote = s[0];
+	if (quote != s[n-1]) {
 		return 0;
 	}
 	s.text += 1;
@@ -455,12 +527,12 @@ i32 unquote_string(gbAllocator a, String *s_) {
 
 
 	{
-		u8 rune_temp[4] = {0};
+		u8 rune_temp[4] = {};
 		isize buf_len = 3*s.len / 2;
 		u8 *buf = gb_alloc_array(a, u8, buf_len);
 		isize offset = 0;
 		while (s.len > 0) {
-			String tail_string = {0};
+			String tail_string = {};
 			Rune r = 0;
 			bool multiple_bytes = false;
 			bool success = unquote_char(s, quote, &r, &multiple_bytes, &tail_string);

src/timings.cpp

@@ -1,14 +1,14 @@
-typedef struct TimeStamp {
+struct TimeStamp {
 	u64    start;
 	u64    finish;
 	String label;
-} TimeStamp;
+};
 
-typedef struct Timings {
+struct Timings {
 	TimeStamp        total;
-	Array(TimeStamp) sections;
+	Array<TimeStamp> sections;
 	u64              freq;
-} Timings;
+};
 
 
 #if defined(GB_SYSTEM_WINDOWS)
@@ -45,13 +45,7 @@ u64 unix_time_stamp__freq(void) {
 	if (freq == 0) {
 		struct timespec ts;
 		clock_getres(CLOCK_PROCESS_CPUTIME_ID, &ts);
-
-		// that would be an absurd resolution (or lack thereof)
-		GB_ASSERT(ts.tv_sec == 0);
-
 		freq = cast(u64) ((1.0 / ts.tv_nsec) * 1000000000.0);
-
-		GB_ASSERT(freq != 0);
 	}
 
 	return freq;
@@ -89,7 +83,7 @@ TimeStamp make_time_stamp(String label) {
 }
 
 void timings_init(Timings *t, String label, isize buffer_size) {
-	array_init_reserve(&t->sections, heap_allocator(), buffer_size);
+	array_init(&t->sections, heap_allocator(), buffer_size);
 	t->total = make_time_stamp(label);
 	t->freq  = time_stamp__freq();
 }
@@ -100,7 +94,7 @@ void timings_destroy(Timings *t) {
 
 void timings__stop_current_section(Timings *t) {
 	if (t->sections.count > 0) {
-		t->sections.e[t->sections.count-1].finish = time_stamp_time_now();
+		t->sections[t->sections.count-1].finish = time_stamp_time_now();
 	}
 }
 
@@ -116,14 +110,14 @@ f64 time_stamp_as_ms(TimeStamp ts, u64 freq) {
 
 void timings_print_all(Timings *t) {
 	char const SPACES[] = "                                                                ";
-	isize max_len, i;
+	isize max_len;
 
 	timings__stop_current_section(t);
 	t->total.finish = time_stamp_time_now();
 
 	max_len = t->total.label.len;
 	for_array(i, t->sections) {
-		TimeStamp ts = t->sections.e[i];
+		TimeStamp ts = t->sections[i];
 		max_len = gb_max(max_len, ts.label.len);
 	}
 
@@ -135,7 +129,7 @@ void timings_print_all(Timings *t) {
 	          time_stamp_as_ms(t->total, t->freq));
 
 	for_array(i, t->sections) {
-		TimeStamp ts = t->sections.e[i];
+		TimeStamp ts = t->sections[i];
 		gb_printf("%.*s%.*s - %.3f ms\n",
 		          LIT(ts.label),
 	              cast(int)(max_len-ts.label.len), SPACES,

src/tokenizer.cpp

@@ -7,6 +7,7 @@ TOKEN_KIND(Token__LiteralBegin, "_LiteralBegin"), \
 	TOKEN_KIND(Token_Ident,     "identifier"), \
 	TOKEN_KIND(Token_Integer,   "integer"), \
 	TOKEN_KIND(Token_Float,     "float"), \
+	TOKEN_KIND(Token_Imag,      "imaginary"), \
 	TOKEN_KIND(Token_Rune,      "rune"), \
 	TOKEN_KIND(Token_String,    "string"), \
 TOKEN_KIND(Token__LiteralEnd,   "_LiteralEnd"), \
@@ -24,6 +25,7 @@ TOKEN_KIND(Token__OperatorBegin, "_OperatorBegin"), \
 	TOKEN_KIND(Token_Mul,      "*"), \
 	TOKEN_KIND(Token_Quo,      "/"), \
 	TOKEN_KIND(Token_Mod,      "%"), \
+	TOKEN_KIND(Token_ModMod,   "%%"), \
 	TOKEN_KIND(Token_And,      "&"), \
 	TOKEN_KIND(Token_Or,       "|"), \
 	TOKEN_KIND(Token_Xor,      "~"), \
@@ -40,6 +42,7 @@ TOKEN_KIND(Token__AssignOpBegin, "_AssignOpBegin"), \
 	TOKEN_KIND(Token_MulEq,      "*="), \
 	TOKEN_KIND(Token_QuoEq,      "/="), \
 	TOKEN_KIND(Token_ModEq,      "%="), \
+	TOKEN_KIND(Token_ModModEq,   "%%="), \
 	TOKEN_KIND(Token_AndEq,      "&="), \
 	TOKEN_KIND(Token_OrEq,       "|="), \
 	TOKEN_KIND(Token_XorEq,      "~="), \
@@ -53,6 +56,7 @@ TOKEN_KIND(Token__AssignOpEnd,   "_AssignOpEnd"), \
 	TOKEN_KIND(Token_ArrowLeft,  "<-"), \
 	TOKEN_KIND(Token_Inc,        "++"), \
 	TOKEN_KIND(Token_Dec,        "--"), \
+	TOKEN_KIND(Token_Undef,      "---"), \
 \
 TOKEN_KIND(Token__ComparisonBegin, "_ComparisonBegin"), \
 	TOKEN_KIND(Token_CmpEq, "=="), \
@@ -63,64 +67,69 @@ TOKEN_KIND(Token__ComparisonBegin, "_ComparisonBegin"), \
 	TOKEN_KIND(Token_GtEq,  ">="), \
 TOKEN_KIND(Token__ComparisonEnd, "_ComparisonEnd"), \
 \
-	TOKEN_KIND(Token_OpenParen,     "("), \
-	TOKEN_KIND(Token_CloseParen,    ")"), \
-	TOKEN_KIND(Token_OpenBracket,   "["), \
-	TOKEN_KIND(Token_CloseBracket,  "]"), \
-	TOKEN_KIND(Token_OpenBrace,     "{"), \
-	TOKEN_KIND(Token_CloseBrace,    "}"), \
-	TOKEN_KIND(Token_Colon,         ":"), \
-	TOKEN_KIND(Token_Semicolon,     ";"), \
-	TOKEN_KIND(Token_Period,        "."), \
-	TOKEN_KIND(Token_Comma,         ","), \
-	TOKEN_KIND(Token_Ellipsis,      ".."), \
-	/* TOKEN_KIND(Token_HalfOpenRange, "..<"), */ \
+	TOKEN_KIND(Token_OpenParen,     "("),   \
+	TOKEN_KIND(Token_CloseParen,    ")"),   \
+	TOKEN_KIND(Token_OpenBracket,   "["),   \
+	TOKEN_KIND(Token_CloseBracket,  "]"),   \
+	TOKEN_KIND(Token_OpenBrace,     "{"),   \
+	TOKEN_KIND(Token_CloseBrace,    "}"),   \
+	TOKEN_KIND(Token_Colon,         ":"),   \
+	TOKEN_KIND(Token_Semicolon,     ";"),   \
+	TOKEN_KIND(Token_Period,        "."),   \
+	TOKEN_KIND(Token_Comma,         ","),   \
+	TOKEN_KIND(Token_Ellipsis,      ".."),  \
+	TOKEN_KIND(Token_HalfClosed,    "..<"), \
+	TOKEN_KIND(Token_BackSlash,     "\\"),  \
 TOKEN_KIND(Token__OperatorEnd, "_OperatorEnd"), \
 \
 TOKEN_KIND(Token__KeywordBegin, "_KeywordBegin"), \
-	TOKEN_KIND(Token_when,           "when"),                \
-	TOKEN_KIND(Token_if,             "if"),                  \
-	TOKEN_KIND(Token_else,           "else"),                \
-	TOKEN_KIND(Token_for,            "for"),                 \
-	TOKEN_KIND(Token_in,             "in"),                  \
-	TOKEN_KIND(Token_match,          "match"),               \
-	TOKEN_KIND(Token_default,        "default"),             \
-	TOKEN_KIND(Token_case,           "case"),                \
-	TOKEN_KIND(Token_break,          "break"),               \
-	TOKEN_KIND(Token_continue,       "continue"),            \
-	TOKEN_KIND(Token_fallthrough,    "fallthrough"),         \
-	TOKEN_KIND(Token_defer,          "defer"),               \
-	TOKEN_KIND(Token_return,         "return"),              \
-	TOKEN_KIND(Token_give,           "give"),                \
-	TOKEN_KIND(Token_proc,           "proc"),                \
-	TOKEN_KIND(Token_macro,          "macro"),               \
-	TOKEN_KIND(Token_struct,         "struct"),              \
-	TOKEN_KIND(Token_union,          "union"),               \
-	TOKEN_KIND(Token_raw_union,      "raw_union"),           \
-	TOKEN_KIND(Token_enum,           "enum"),                \
-	TOKEN_KIND(Token_vector,         "vector"),              \
-	TOKEN_KIND(Token_static,         "static"),              \
-	TOKEN_KIND(Token_dynamic,        "dynamic"),             \
-	TOKEN_KIND(Token_map,            "map"),                 \
-	TOKEN_KIND(Token_using,          "using"),               \
-	TOKEN_KIND(Token_no_alias,       "no_alias"),            \
-	TOKEN_KIND(Token_immutable,      "immutable"),           \
-	TOKEN_KIND(Token_cast,           "cast"),                \
-	TOKEN_KIND(Token_transmute,      "transmute"),           \
-	TOKEN_KIND(Token_down_cast,      "down_cast"),           \
-	TOKEN_KIND(Token_union_cast,     "union_cast"),          \
-	TOKEN_KIND(Token_context,        "context"),             \
-	TOKEN_KIND(Token_push_context,   "push_context"),        \
-	TOKEN_KIND(Token_push_allocator, "push_allocator"),      \
-	TOKEN_KIND(Token_asm,            "asm"),                 \
+	TOKEN_KIND(Token_var,                    "var"),                    \
+	TOKEN_KIND(Token_const,                  "const"),                  \
+	TOKEN_KIND(Token_type,                   "type"),                   \
+	TOKEN_KIND(Token_import,                 "import"),                 \
+	TOKEN_KIND(Token_import_load,            "import_load"),            \
+	TOKEN_KIND(Token_foreign,                "foreign"),                \
+	TOKEN_KIND(Token_foreign_library,        "foreign_library"),        \
+	TOKEN_KIND(Token_foreign_system_library, "foreign_system_library"), \
+	TOKEN_KIND(Token_when,                   "when"),                   \
+	TOKEN_KIND(Token_if,                     "if"),                     \
+	TOKEN_KIND(Token_else,                   "else"),                   \
+	TOKEN_KIND(Token_for,                    "for"),                    \
+	TOKEN_KIND(Token_in,                     "in"),                     \
+	TOKEN_KIND(Token_match,                  "match"),                  \
+	TOKEN_KIND(Token_case,                   "case"),                   \
+	TOKEN_KIND(Token_break,                  "break"),                  \
+	TOKEN_KIND(Token_continue,               "continue"),               \
+	TOKEN_KIND(Token_fallthrough,            "fallthrough"),            \
+	TOKEN_KIND(Token_defer,                  "defer"),                  \
+	TOKEN_KIND(Token_return,                 "return"),                 \
+	TOKEN_KIND(Token_proc,                   "proc"),                   \
+	TOKEN_KIND(Token_macro,                  "macro"),                  \
+	TOKEN_KIND(Token_struct,                 "struct"),                 \
+	TOKEN_KIND(Token_union,                  "union"),                  \
+	TOKEN_KIND(Token_raw_union,              "raw_union"),              \
+	TOKEN_KIND(Token_enum,                   "enum"),                   \
+	TOKEN_KIND(Token_bit_field,              "bit_field"),              \
+	TOKEN_KIND(Token_vector,                 "vector"),                 \
+	TOKEN_KIND(Token_static,                 "static"),                 \
+	TOKEN_KIND(Token_dynamic,                "dynamic"),                \
+	TOKEN_KIND(Token_map,                    "map"),                    \
+	TOKEN_KIND(Token_using,                  "using"),                  \
+	TOKEN_KIND(Token_context,                "context"),                \
+	TOKEN_KIND(Token_push_context,           "push_context"),           \
+	TOKEN_KIND(Token_push_allocator,         "push_allocator"),         \
+	TOKEN_KIND(Token_asm,                    "asm"),                    \
+	TOKEN_KIND(Token_yield,                  "yield"),                  \
+	TOKEN_KIND(Token_await,                  "await"),                  \
+	TOKEN_KIND(Token_atomic,                 "atomic"),                 \
 TOKEN_KIND(Token__KeywordEnd, "_KeywordEnd"), \
 	TOKEN_KIND(Token_Count, "")
 
-typedef enum TokenKind {
+enum TokenKind {
 #define TOKEN_KIND(e, s) e
 	TOKEN_KINDS
 #undef TOKEN_KIND
-} TokenKind;
+};
 
 String const token_strings[] = {
 #define TOKEN_KIND(e, s) {cast(u8 *)s, gb_size_of(s)-1}
@@ -129,11 +138,11 @@ String const token_strings[] = {
 };
 
 
-typedef struct TokenPos {
+struct TokenPos {
 	String file;
 	isize  line;
 	isize  column;
-} TokenPos;
+};
 
 i32 token_pos_cmp(TokenPos a, TokenPos b) {
 	if (a.line == b.line) {
@@ -151,11 +160,11 @@ bool token_pos_eq(TokenPos a, TokenPos b) {
 	return token_pos_cmp(a, b) == 0;
 }
 
-typedef struct Token {
+struct Token {
 	TokenKind kind;
 	String string;
 	TokenPos pos;
-} Token;
+};
 
 Token empty_token = {Token_Invalid};
 Token blank_token = {Token_Ident, {cast(u8 *)"_", 1}};
@@ -166,12 +175,12 @@ Token make_token_ident(String s) {
 }
 
 
-typedef struct ErrorCollector {
+struct ErrorCollector {
 	TokenPos prev;
-	i64 count;
-	i64 warning_count;
+	i64     count;
+	i64     warning_count;
 	gbMutex mutex;
-} ErrorCollector;
+};
 
 gb_global ErrorCollector global_error_collector;
 
@@ -305,7 +314,7 @@ gb_inline bool token_is_shift(TokenKind t) {
 gb_inline void print_token(Token t) { gb_printf("%.*s\n", LIT(t.string)); }
 
 
-typedef enum TokenizerInitError {
+enum TokenizerInitError {
 	TokenizerInit_None,
 
 	TokenizerInit_Invalid,
@@ -314,18 +323,18 @@ typedef enum TokenizerInitError {
 	TokenizerInit_Empty,
 
 	TokenizerInit_Count,
-} TokenizerInitError;
+};
 
 
-typedef struct TokenizerState {
+struct TokenizerState {
 	Rune  curr_rune;   // current character
 	u8 *  curr;        // character pos
 	u8 *  read_curr;   // pos from start
 	u8 *  line;        // current line pos
 	isize line_count;
-} TokenizerState;
+};
 
-typedef struct Tokenizer {
+struct Tokenizer {
 	String fullpath;
 	u8 *start;
 	u8 *end;
@@ -337,12 +346,12 @@ typedef struct Tokenizer {
 	isize line_count;
 
 	isize error_count;
-	Array(String) allocated_strings;
-} Tokenizer;
+	Array<String> allocated_strings;
+};
 
 
 TokenizerState save_tokenizer_state(Tokenizer *t) {
-	TokenizerState state = {0};
+	TokenizerState state = {};
 	state.curr_rune  = t->curr_rune;
 	state.curr       = t->curr;
 	state.read_curr  = t->read_curr;
@@ -414,7 +423,7 @@ TokenizerInitError init_tokenizer(Tokenizer *t, String fullpath) {
 	TokenizerInitError err = TokenizerInit_None;
 
 	char *c_str = gb_alloc_array(heap_allocator(), char, fullpath.len+1);
-	memcpy(c_str, fullpath.text, fullpath.len);
+	gb_memcopy(c_str, fullpath.text, fullpath.len);
 	c_str[fullpath.len] = '\0';
 
 	// TODO(bill): Memory map rather than copy contents
@@ -434,7 +443,7 @@ TokenizerInitError init_tokenizer(Tokenizer *t, String fullpath) {
 
 		array_init(&t->allocated_strings, heap_allocator());
 	} else {
-		gbFile f = {0};
+		gbFile f = {};
 		gbFileError file_err = gb_file_open(&f, c_str);
 
 		switch (file_err) {
@@ -459,7 +468,7 @@ gb_inline void destroy_tokenizer(Tokenizer *t) {
 		gb_free(heap_allocator(), t->start);
 	}
 	for_array(i, t->allocated_strings) {
-		gb_free(heap_allocator(), t->allocated_strings.e[i].text);
+		gb_free(heap_allocator(), t->allocated_strings[i].text);
 	}
 	array_free(&t->allocated_strings);
 }
@@ -491,7 +500,7 @@ gb_inline void scan_mantissa(Tokenizer *t, i32 base) {
 }
 
 Token scan_number_to_token(Tokenizer *t, bool seen_decimal_point) {
-	Token token = {0};
+	Token token = {};
 	token.kind = Token_Integer;
 	token.string = make_string(t->curr, 1);
 	token.pos.file = t->fullpath;
@@ -537,7 +546,14 @@ Token scan_number_to_token(Tokenizer *t, bool seen_decimal_point) {
 			if (t->curr - prev <= 2) {
 				token.kind = Token_Invalid;
 			}
-		} else {
+		} /* else if (t->curr_rune == 'h') { // Hexadecimal Float
+			token.kind = Token_Float;
+			advance_to_next_rune(t);
+			scan_mantissa(t, 16);
+			if (t->curr - prev <= 2) {
+				token.kind = Token_Invalid;
+			}
+		} */ else {
 			seen_decimal_point = false;
 			scan_mantissa(t, 10);
 
@@ -547,18 +563,18 @@ Token scan_number_to_token(Tokenizer *t, bool seen_decimal_point) {
 			}
 		}
 
-		token.string.len = t->curr - token.string.text;
-		return token;
+		goto end;
 	}
 
 	scan_mantissa(t, 10);
 
+
 fraction:
 	if (t->curr_rune == '.') {
 		// HACK(bill): This may be inefficient
 		TokenizerState state = save_tokenizer_state(t);
 		advance_to_next_rune(t);
-		if (digit_value(t->curr_rune) >= 10) {
+		if (t->curr_rune == '.') {
 			// TODO(bill): Clean up this shit
 			restore_tokenizer_state(t, &state);
 			goto end;
@@ -577,6 +593,11 @@ exponent:
 		scan_mantissa(t, 10);
 	}
 
+	if (t->curr_rune == 'i') {
+		token.kind = Token_Imag;
+		advance_to_next_rune(t);
+	}
+
 end:
 	token.string.len = t->curr - token.string.text;
 	return token;
@@ -611,20 +632,22 @@ bool scan_escape(Tokenizer *t, Rune quote) {
 		advance_to_next_rune(t);
 		len = 8; base = 16; max = GB_RUNE_MAX;
 	} else {
-		if (t->curr_rune < 0)
+		if (t->curr_rune < 0) {
 			tokenizer_err(t, "Escape sequence was not terminated");
-		else
+		} else {
 			tokenizer_err(t, "Unknown escape sequence");
+		}
 		return false;
 	}
 
 	while (len --> 0) {
 		u32 d = cast(u32)digit_value(t->curr_rune);
 		if (d >= base) {
-			if (t->curr_rune < 0)
+			if (t->curr_rune < 0) {
 				tokenizer_err(t, "Escape sequence was not terminated");
-			else
+			} else {
 				tokenizer_err(t, "Illegal character %d in escape sequence", t->curr_rune);
+			}
 			return false;
 		}
 
@@ -734,7 +757,7 @@ bool tokenizer_find_line_end(Tokenizer *t) {
 Token tokenizer_get_token(Tokenizer *t) {
 	tokenizer_skip_whitespace(t);
 
-	Token token = {0};
+	Token token = {};
 	token.string = make_string(t->curr, 1);
 	token.pos.file = t->fullpath;
 	token.pos.line = t->line_count;
@@ -752,7 +775,7 @@ Token tokenizer_get_token(Tokenizer *t) {
 		// NOTE(bill): All keywords are > 1
 		if (token.string.len > 1) {
 			for (i32 k = Token__KeywordBegin+1; k < Token__KeywordEnd; k++) {
-				if (str_eq(token.string, token_strings[k])) {
+				if (token.string == token_strings[k]) {
 					token.kind = cast(TokenKind)k;
 					break;
 				}
@@ -859,35 +882,58 @@ Token tokenizer_get_token(Tokenizer *t) {
 			if (t->curr_rune == '.') { // Could be an ellipsis
 				advance_to_next_rune(t);
 				token.kind = Token_Ellipsis;
-				// if (t->curr_rune == '<') {
-					// advance_to_next_rune(t);
-					// token.kind = Token_HalfOpenRange;
-				// }
+				if (t->curr_rune == '<') {
+					advance_to_next_rune(t);
+					token.kind = Token_HalfClosed;
+				}
 			}
 			break;
 
-		case '#': token.kind = Token_Hash;         break;
-		case '@': token.kind = Token_At;           break;
-		case '$': token.kind = Token_Dollar;       break;
-		case '?': token.kind = Token_Question;     break;
-		case '^': token.kind = Token_Pointer;      break;
-		case ';': token.kind = Token_Semicolon;    break;
-		case ',': token.kind = Token_Comma;        break;
-		case ':': token.kind = Token_Colon;        break;
-		case '(': token.kind = Token_OpenParen;    break;
-		case ')': token.kind = Token_CloseParen;   break;
-		case '[': token.kind = Token_OpenBracket;  break;
-		case ']': token.kind = Token_CloseBracket; break;
-		case '{': token.kind = Token_OpenBrace;    break;
-		case '}': token.kind = Token_CloseBrace;   break;
+		case '#':  token.kind = Token_Hash;         break;
+		case '@':  token.kind = Token_At;           break;
+		case '$':  token.kind = Token_Dollar;       break;
+		case '?':  token.kind = Token_Question;     break;
+		case '^':  token.kind = Token_Pointer;      break;
+		case ';':  token.kind = Token_Semicolon;    break;
+		case ',':  token.kind = Token_Comma;        break;
+		case ':':  token.kind = Token_Colon;        break;
+		case '(':  token.kind = Token_OpenParen;    break;
+		case ')':  token.kind = Token_CloseParen;   break;
+		case '[':  token.kind = Token_OpenBracket;  break;
+		case ']':  token.kind = Token_CloseBracket; break;
+		case '{':  token.kind = Token_OpenBrace;    break;
+		case '}':  token.kind = Token_CloseBrace;   break;
+		case '\\': token.kind = Token_BackSlash;    break;
+
+		case 0x2260:  token.kind = Token_NotEq; break; // '≠'
+		case 0x2264:  token.kind = Token_LtEq;  break; // '≤'
+		case 0x2265:  token.kind = Token_GtEq;  break; // '≥'
+
+		case '%': token.kind = token_kind_dub_eq(t, '%', Token_Mod, Token_ModEq, Token_ModMod, Token_ModModEq);      break;
 
 		case '*': token.kind = token_kind_variant2(t, Token_Mul, Token_MulEq);                                        break;
-		case '%': token.kind = token_kind_variant2(t, Token_Mod, Token_ModEq);                                        break;
 		case '=': token.kind = token_kind_variant2(t, Token_Eq,  Token_CmpEq);                                        break;
 		case '~': token.kind = token_kind_variant2(t, Token_Xor, Token_XorEq);                                        break;
 		case '!': token.kind = token_kind_variant2(t, Token_Not, Token_NotEq);                                        break;
 		case '+': token.kind = token_kind_variant3(t, Token_Add, Token_AddEq, '+', Token_Inc);                        break;
-		case '-': token.kind = token_kind_variant4(t, Token_Sub, Token_SubEq, '-', Token_Dec, '>', Token_ArrowRight); break;
+		case '-':
+			token.kind = Token_Sub;
+			if (t->curr_rune == '=') {
+				advance_to_next_rune(t);
+				token.kind = Token_SubEq;
+			} else if (t->curr_rune == '-') {
+				advance_to_next_rune(t);
+				token.kind = Token_Dec;
+				if (t->curr_rune == '-') {
+					advance_to_next_rune(t);
+					token.kind = Token_Undef;
+				}
+			} else if (t->curr_rune == '>') {
+				advance_to_next_rune(t);
+				token.kind = Token_ArrowRight;
+			}
+			break;
+
 		case '/': {
 			if (t->curr_rune == '/') {
 				while (t->curr_rune != '\n' && t->curr_rune != GB_RUNE_EOF) {
@@ -898,7 +944,9 @@ Token tokenizer_get_token(Tokenizer *t) {
 				isize comment_scope = 1;
 				advance_to_next_rune(t);
 				while (comment_scope > 0) {
-					if (t->curr_rune == '/') {
+					if (t->curr_rune == GB_RUNE_EOF) {
+						break;
+					} else if (t->curr_rune == '/') {
 						advance_to_next_rune(t);
 						if (t->curr_rune == '*') {
 							advance_to_next_rune(t);
@@ -946,8 +994,8 @@ Token tokenizer_get_token(Tokenizer *t) {
 		case '|': token.kind = token_kind_dub_eq(t, '|', Token_Or, Token_OrEq, Token_CmpOr, Token_CmpOrEq); break;
 
 		default:
-			if (curr_rune != GB_RUNE_BOM) {
-				u8 str[4] = {0};
+		if (curr_rune != GB_RUNE_BOM) {
+				u8 str[4] = {};
 				int len = cast(int)gb_utf8_encode_rune(str, curr_rune);
 				tokenizer_err(t, "Illegal character: %.*s (%d) ", len, str, curr_rune);
 			}

src/unicode.cpp

@@ -1,9 +1,10 @@
 #pragma warning(push)
 #pragma warning(disable: 4245)
 
+extern "C" {
 // #include "utf8proc/utf8proc.h"
 #include "utf8proc/utf8proc.c"
-
+}
 #pragma warning(pop)
 
 

src/utf8proc/utf8proc.c

@@ -383,7 +383,7 @@ UTF8PROC_DLLEXPORT int utf8proc_charwidth(utf8proc_int32_t c) {
 }
 
 UTF8PROC_DLLEXPORT utf8proc_category_t utf8proc_category(utf8proc_int32_t c) {
-  return utf8proc_get_property(c)->category;
+  return cast(utf8proc_category_t)utf8proc_get_property(c)->category;
 }
 
 UTF8PROC_DLLEXPORT const char *utf8proc_category_string(utf8proc_int32_t c) {
@@ -393,15 +393,15 @@ UTF8PROC_DLLEXPORT const char *utf8proc_category_string(utf8proc_int32_t c) {
 
 #define utf8proc_decompose_lump(replacement_uc) \
   return utf8proc_decompose_char((replacement_uc), dst, bufsize, \
-  options & ~UTF8PROC_LUMP, last_boundclass)
+  (utf8proc_option_t)(options & ~UTF8PROC_LUMP), last_boundclass)
 
 UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose_char(utf8proc_int32_t uc, utf8proc_int32_t *dst, utf8proc_ssize_t bufsize, utf8proc_option_t options, int *last_boundclass) {
   const utf8proc_property_t *property;
-  utf8proc_propval_t category;
+  utf8proc_category_t category;
   utf8proc_int32_t hangul_sindex;
   if (uc < 0 || uc >= 0x110000) return UTF8PROC_ERROR_NOTASSIGNED;
   property = unsafe_get_property(uc);
-  category = property->category;
+  category = cast(utf8proc_category_t)property->category;
   hangul_sindex = uc - UTF8PROC_HANGUL_SBASE;
   if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) {
     if (hangul_sindex >= 0 && hangul_sindex < UTF8PROC_HANGUL_SCOUNT) {
@@ -728,28 +728,24 @@ UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_map_custom(
 
 UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFD(const utf8proc_uint8_t *str) {
   utf8proc_uint8_t *retval;
-  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
-    UTF8PROC_DECOMPOSE);
+  utf8proc_map(str, 0, &retval, cast(utf8proc_option_t)(UTF8PROC_NULLTERM|UTF8PROC_STABLE|UTF8PROC_DECOMPOSE));
   return retval;
 }
 
 UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFC(const utf8proc_uint8_t *str) {
   utf8proc_uint8_t *retval;
-  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
-    UTF8PROC_COMPOSE);
+  utf8proc_map(str, 0, &retval, cast(utf8proc_option_t)(UTF8PROC_NULLTERM|UTF8PROC_STABLE|UTF8PROC_COMPOSE));
   return retval;
 }
 
 UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKD(const utf8proc_uint8_t *str) {
   utf8proc_uint8_t *retval;
-  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
-    UTF8PROC_DECOMPOSE | UTF8PROC_COMPAT);
+  utf8proc_map(str, 0, &retval, cast(utf8proc_option_t)(UTF8PROC_NULLTERM|UTF8PROC_STABLE|UTF8PROC_DECOMPOSE|UTF8PROC_COMPAT));
   return retval;
 }
 
 UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKC(const utf8proc_uint8_t *str) {
   utf8proc_uint8_t *retval;
-  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
-    UTF8PROC_COMPOSE | UTF8PROC_COMPAT);
+  utf8proc_map(str, 0, &retval, cast(utf8proc_option_t)(UTF8PROC_NULLTERM|UTF8PROC_STABLE|UTF8PROC_COMPOSE|UTF8PROC_COMPAT));
   return retval;
 }