From c9ffe305130cdb90967719ee68419fd929474054 Mon Sep 17 00:00:00 2001 From: Daan Leijen Date: Mon, 18 May 2020 10:17:58 -0700 Subject: [PATCH] weaken alignment requirement to not need to be a multiple of sizeof(void*); see #246 --- src/alloc-aligned.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/src/alloc-aligned.c b/src/alloc-aligned.c index 7eeb9e92..15ebd59d 100644 --- a/src/alloc-aligned.c +++ b/src/alloc-aligned.c @@ -17,8 +17,7 @@ terms of the MIT license. A copy of the license can be found in the file static void* mi_heap_malloc_zero_aligned_at(mi_heap_t* const heap, const size_t size, const size_t alignment, const size_t offset, const bool zero) mi_attr_noexcept { // note: we don't require `size > offset`, we just guarantee that // the address at offset is aligned regardless of the allocated size. - mi_assert(alignment > 0 && alignment % sizeof(void*) == 0); - + mi_assert(alignment > 0); if (mi_unlikely(size > PTRDIFF_MAX)) return NULL; // we don't allocate more than PTRDIFF_MAX (see ) if (mi_unlikely(alignment==0 || !_mi_is_power_of_two(alignment))) return NULL; // require power-of-two (see ) const uintptr_t align_mask = alignment-1; // for any x, `(x & align_mask) == (x % alignment)`