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runtime align_forward procs as source of truth

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jakubtomsu
2026-03-26 19:38:49 +01:00
parent fb69d8132d
commit 382ca331be
4 changed files with 101 additions and 73 deletions
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24
core/mem/mem.odin
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@@ -467,13 +467,7 @@ Check whether a number is a power of two.
This procedure checks whether a given pointer-sized unsigned integer contains
a power-of-two value.
*/
@(require_results)
is_power_of_two :: proc "contextless" (x: uintptr) -> bool {
if x <= 0 {
return false
}
return (x & (x-1)) == 0
}
is_power_of_two :: runtime.is_power_of_two_uintptr
/*
Check if a pointer is aligned.
@@ -497,11 +491,7 @@ bytes, `ptr` is returned.
The specified alignment must be a power of 2.
*/
@(require_results)
align_forward_uintptr :: proc(ptr, align: uintptr) -> uintptr {
assert(is_power_of_two(align))
return (ptr + align-1) & ~(align-1)
}
align_forward_uintptr :: runtime.align_forward_uintptr
/*
Align pointer forward.
@@ -526,10 +516,7 @@ bytes, `ptr` is returned.
The specified alignment must be a power of 2.
*/
@(require_results)
align_forward_int :: proc(ptr, align: int) -> int {
return int(align_forward_uintptr(uintptr(ptr), uintptr(align)))
}
align_forward_int :: runtime.align_forward_int
/*
Align uint forward.
@@ -540,10 +527,7 @@ bytes, `ptr` is returned.
The specified alignment must be a power of 2.
*/
@(require_results)
align_forward_uint :: proc(ptr, align: uint) -> uint {
return uint(align_forward_uintptr(uintptr(ptr), uintptr(align)))
}
align_forward_uint :: runtime.align_forward_uint
/*
Align uintptr backwards.