ref: e7d19b604ceba9e4d387cc837961a7138008b18a
dir: /tests/libc/execute/0025-strspn.c/
#include <assert.h> #include <stdio.h> #include <string.h> /* output: testing done end: */ int main() { puts("testing"); assert(strspn("abccdef", "cba") == 4); assert(strspn("abcg", "cba0") == 3); assert(strspn("", "abc") == 0); assert(strspn("abc", "") == 0); assert(strspn("", "") == 0); assert(strspn("abc", "def") == 0); puts("done"); return 0; }