use slice.ptr_swap instead of alloca

This commit is contained in:
Laytan Laats
2024-07-02 20:10:21 +02:00
parent 10c68a8951
commit 0ef5191540
+3 -6
View File
@@ -8,6 +8,7 @@ import "base:runtime"
import "core:c"
import "core:math"
import "core:mem"
import "core:slice"
import "core:sort"
@(require, linkage="strong", link_name="stbtt_malloc")
@@ -33,10 +34,9 @@ qsort :: proc "c" (base: rawptr, num: uint, size: uint, cmp: proc "c" (a, b: raw
size: uint,
cmp: proc "c" (a, b: rawptr) -> i32,
}
inputs := Inputs{base, num, size, cmp}
sort.sort({
collection = &inputs,
collection = &Inputs{base, num, size, cmp},
len = proc(it: sort.Interface) -> int {
inputs := (^Inputs)(it.collection)
return int(inputs.num)
@@ -53,10 +53,7 @@ qsort :: proc "c" (base: rawptr, num: uint, size: uint, cmp: proc "c" (a, b: raw
a := rawptr(uintptr(inputs.base) + (uintptr(i) * uintptr(inputs.size)))
b := rawptr(uintptr(inputs.base) + (uintptr(j) * uintptr(inputs.size)))
tmp := intrinsics.alloca(inputs.size, runtime.DEFAULT_ALIGNMENT)
intrinsics.mem_copy_non_overlapping(tmp, a, inputs.size)
intrinsics.mem_copy_non_overlapping(a, b, inputs.size)
intrinsics.mem_copy_non_overlapping(b, tmp, inputs.size)
slice.ptr_swap_non_overlapping(a, b, int(inputs.size))
},
})
}