ref: 81272f61a868aa2d047c2620191b88d4fe9769bd
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; }