ref: 09065798bf0445de3ec4a34ef714bdae3502f198
dir: /tests/libc/execute/0012-strchr.c/
#include <assert.h> #include <stdio.h> #include <string.h> /* output: testing done end: */ int main() { char *p, buf[] = "abcad"; puts("testing"); p = strchr(buf, 0); assert(p == buf+5); assert(*p == '\0'); p = strchr(buf, 'a'); assert(p == buf); assert(*p == 'a'); p = strchr(buf, 'd'); assert(p == buf+4); assert(*p == 'd'); p = strchr(buf, 'c'); assert(p == buf+2); assert(*p == 'c'); p = strchr(buf, 'h'); assert(p == NULL); p = strchr("", 'a'); assert(p == NULL); puts("done"); return 0; }