ref: 24df403e7e688d13b5c5c29ca5a9fa6c6b2499df
dir: /libc/src/memchr.c/
/* See LICENSE file for copyright and license details. */
#include <string.h>
void *
memchr(const void *s, int c, size_t n)
{
	unsigned char *bp = (char *) s;
	while (n > 0 && *bp++ != c)
		--n;
	return (n == 0) ? NULL : bp-1;
}