mirror of
https://github.com/Ed94/metadesk.git
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182 lines
4.5 KiB
C
182 lines
4.5 KiB
C
#ifdef INTELLISENSE_DIRECTIVES
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# pragma once
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# include "context_cracking.h"
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# include "linkage.h"
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#endif
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////////////////////////////////
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//~ rjf: Branch Predictor Hints
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#if COMPILER_CLANG
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# define expect(expr, val) __builtin_expect((expr), (val))
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#else
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# define expect(expr, val) (expr)
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#endif
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#define likely(expr) expect(expr, 1)
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#define unlikely(expr) expect(expr, 0)
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////////////////////////////////
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//~ erg: type casting
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#if LANG_CPP
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# ifndef ccast
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# define ccast( type, value ) ( const_cast< type >( (value) ) )
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# endif
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# ifndef pcast
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# define pcast( type, value ) ( * reinterpret_cast< type* >( & ( value ) ) )
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# endif
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# ifndef rcast
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# define rcast( type, value ) reinterpret_cast< type >( value )
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# endif
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# ifndef scast
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# define scast( type, value ) static_cast< type >( value )
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# endif
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#else
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# ifndef ccast
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# define ccast( type, value ) ( (type)(value) )
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# endif
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# ifndef pcast
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# define pcast( type, value ) ( * (type*)(& value) )
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# endif
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# ifndef rcast
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# define rcast( type, value ) ( (type)(value) )
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# endif
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# ifndef scast
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# define scast( type, value ) ( (type)(value) )
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# endif
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#endif
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#if ! defined(typeof) && ( ! LANG_C || __STDC_VERSION__ < 202311L)
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# if ! LANG_C
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# define typeof decltype
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# elif defined(_MSC_VER)
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# define typeof __typeof__
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# elif defined(__GNUC__) || defined(__clang__)
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# define typeof __typeof__
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# else
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# error "Compiler not supported"
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# endif
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#endif
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#if LANG_C
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# if __STDC_VERSION__ >= 202311L
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# define enum_underlying(type) : type
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# else
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# define enum_underlying(type)
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# endif
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#else
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# define enum_underlying(type) : type
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#endif
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#if LANG_C
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# ifndef nullptr
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# define nullptr NULL
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# endif
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# ifndef MD_REMOVE_PTR
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# define MD_REMOVE_PTR(type) typeof(* ( (type) NULL) )
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# endif
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#endif
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#if ! defined(PARAM_DEFAULT) && LANG_CPP
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# define PARAM_DEFAULT = {}
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#else
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# define PARAM_DEFAULT
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#endif
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#if LANG_C
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# ifndef static_assert
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# undef static_assert
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# if __STDC_VERSION__ >= 201112L
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# define static_assert(condition, message) _Static_assert(condition, message)
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# else
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# define static_assert(condition, message) typedef char static_assertion_##__LINE__[(condition)?1:-1]
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# endif
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# endif
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#endif
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#ifndef force_inline
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# if COMPILER_MSVC
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# define force_inline __forceinline
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# elif COMPILER_GCC
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# define force_inline inline __attribute__((__always_inline__))
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# elif COMPILER_CLANG
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# if __has_attribute(__always_inline__)
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# define force_inline inline __attribute__((__always_inline__))
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# else
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# define force_inline
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# endif
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# else
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# define force_inline
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# endif
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#endif
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#ifndef never_inline
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# if COMPILER_MSVC
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# define never_inline __declspec( noinline )
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# elif COMPILER_GCC
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# define never_inline __attribute__( ( __noinline__ ) )
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# elif COMPILER_CLANG
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# if __has_attribute(__always_inline__)
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# define never_inline __attribute__( ( __noinline__ ) )
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# else
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# define never_inline
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# endif
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# else
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# define never_inline
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# endif
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#endif
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////////////////////////////////
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//~ rjf: For-Loop Construct Macros
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#ifndef defer_loop
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#define defer_loop(begin, end) for (int _i_ = ((begin), 0); ! _i_; _i_ += 1, (end))
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#endif
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#ifndef defer_loop_checked
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#define defer_loop_checked(begin, end) for (int _i_ = 2 * ! (begin); (_i_ == 2 ? ((end), 0) : !_i_); _i_ += 1, (end))
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#endif
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#ifndef each_enum_val
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#define each_enum_val(type, it) type it = (type) 0; it < type ## _COUNT; it = (type)( it + 1 )
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#endif
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#ifndef each_non_zero_enum_val
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#define each_non_zero_enum_val(type, it) type it = (type) 1; it < type ## _COUNT; it = (type)( it + 1 )
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#endif
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#ifndef stringify
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#define stringify_(S) #S
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#define stringify(S) stringify_(S)
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#endif
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#ifndef glue
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#define glue_(A,B) A ## B
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#define glue(A,B) glue_(A,B)
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#endif
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#define src_line_str stringify(__LINE__)
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#ifndef do_once
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#define do_once() \
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local_persist int __do_once_counter_##src_line_str = 0; \
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for(; __do_once_counter_##src_line_str != 1; __do_once_counter_##src_line_str = 1 ) \
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#define do_once_defer( expression ) \
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local_persist int __do_once_counter_##src_line_str = 0; \
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for(;__do_once_counter_##src_line_str != 1; __do_once_counter_##src_line_str = 1, (expression)) \
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#define do_once_start \
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do \
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{ \
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local_persist \
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bool done = false; \
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if ( done ) \
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break; \
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done = true;
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#define do_once_end \
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} \
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while(0);
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#endif
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