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mem.is_aligned is in bytes, not log2 bytes

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Fix formula and clarify comment
This commit is contained in:
Jeroen van Rijn
2024-12-01 11:54:52 +11:00
committed by flysand7
parent ee84aa4ead
commit c5d3fdca44
1 changed files with 3 additions and 1 deletions
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core/mem/mem.odin
+3 -1
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@@ -461,10 +461,12 @@ Check if a pointer is aligned.
This procedure checks whether a pointer `x` is aligned to a boundary specified This procedure checks whether a pointer `x` is aligned to a boundary specified
by `align`, and returns `true` if the pointer is aligned, and false otherwise. by `align`, and returns `true` if the pointer is aligned, and false otherwise.
The specified alignment must be a power of 2.
*/ */
is_aligned :: proc "contextless" (x: rawptr, align: int) -> bool { is_aligned :: proc "contextless" (x: rawptr, align: int) -> bool {
p := uintptr(x) p := uintptr(x)
return (p & (1<<uintptr(align) - 1)) == 0 return (p & (uintptr(align) - 1) == 0
} }
/* /*