ref: 3c6c5a02710e4d7a3da6121e9bfb8d2bc0d786dd 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) ? s : NULL; }