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/*
* Copyright (c) 2025 Robert Clausecker <fuz@FreeBSD.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <stdint.h>
#include <stdlib.h>
size_t
memalignment(const void *p)
{
uintptr_t align;
if (p == NULL)
return (0);
align = (uintptr_t)p;
align &= -align;
#if UINTPTR_MAX > SIZE_MAX
/* if alignment overflows size_t, return maximum possible */
if (align > SIZE_MAX)
align = SIZE_MAX - SIZE_MAX/2;
#endif
return (align);
}
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