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fix max allocation size on 32-bit systems (issue #882)

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Daan 2024-05-10 17:24:52 -07:00
parent 3b4c61b4cf
commit 6c5d6e1f72
1 changed files with 1 additions and 1 deletions
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include/mimalloc/types.h
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@ -214,7 +214,7 @@ typedef int32_t mi_ssize_t;
// we never allocate more than PTRDIFF_MAX (see also <https://sourceware.org/ml/libc-announce/2019/msg00001.html>)
// on 64-bit+ systems we also limit the maximum allocation size such that the slice count fits in 32-bits. (issue #877)
#if PTRDIFF_MAX >= (MI_SEGMENT_SLIZE_SIZE * UINT32_MAX)
#if (PTRDIFF_MAX > INT32_MAX) && (PTRDIFF_MAX >= (MI_SEGMENT_SLIZE_SIZE * UINT32_MAX))
#define MI_MAX_ALLOC_SIZE (MI_SEGMENT_SLICE_SIZE * (UINT32_MAX-1))
#else
#define MI_MAX_ALLOC_SIZE PTRDIFF_MAX