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Merge pull request #485 from devnexen/builtin_overflow_sig_fix

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fix spurious build warning with overflow builtins
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Daan 2021-11-14 14:47:38 -08:00 • committed by GitHub
commit 9c9c3a0311
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1 changed files with 3 additions and 3 deletions
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6
include/mimalloc-internal.h
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@ -255,11 +255,11 @@ static inline bool mi_malloc_satisfies_alignment(size_t alignment, size_t size)
#endif
static inline bool mi_mul_overflow(size_t count, size_t size, size_t* total) {
#if (SIZE_MAX == ULONG_MAX)
return __builtin_umull_overflow(count, size, total);
return __builtin_umull_overflow(count, size, (unsigned long *)total);
#elif (SIZE_MAX == UINT_MAX)
return __builtin_umul_overflow(count, size, total);
return __builtin_umul_overflow(count, size, (unsigned int *)total);
#else
return __builtin_umulll_overflow(count, size, total);
return __builtin_umulll_overflow(count, size, (unsigned long long *)total);
#endif
}
#else /* __builtin_umul_overflow is unavailable */