ref: d0a9d4f58eb08bf3d1ffff3ce0da5b9d9f4b497a dir: /src/libc/string/strchr.c/
#include <string.h> #undef strchr char * strchr(const char *s, int c) { while (*s && *s != c) ++s; return (*s == c) ? (char *)s : NULL; }