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better alignment test

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daanx
2023-04-16 17:01:59 -07:00
parent 89e092d795
commit a8b9f2878a
2 changed files with 4 additions and 12 deletions
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4
src/alloc-posix.c
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@@ -56,8 +56,8 @@ int mi_posix_memalign(void** p, size_t alignment, size_t size) mi_attr_noexcept
// Note: The spec dictates we should not modify `*p` on an error. (issue#27)
// <http://man7.org/linux/man-pages/man3/posix_memalign.3.html>
if (p == NULL) return EINVAL;
if (alignment % sizeof(void*) != 0) return EINVAL; // natural alignment
if (alignment==0 || !_mi_is_power_of_two(alignment)) return EINVAL; // not a power of 2
if ((alignment % sizeof(void*)) != 0) return EINVAL; // natural alignment
// it is also required that alignment is a power of 2 and > 0; this is checked in `mi_malloc_aligned`
void* q = mi_malloc_aligned(size, alignment);
if (q==NULL && size != 0) return ENOMEM;
mi_assert_internal(((uintptr_t)q % alignment) == 0);