ref: eba17d80d42e07d4eb9176c66d1bbb3ee39e8d81
dir: /libc/src/memchr.c/
/* See LICENSE file for copyright and license details. */ #include <string.h> #undef memchr 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; }