ref: d5ba7a743aa0a71de85332b403452fa3d498cb35
dir: /tests/libc/execute/0018-strlen.c/
#include <assert.h> #include <stdio.h> #include <string.h> /* output: testing done end: */ int main() { puts("testing"); assert(strlen("01234") == 5); assert(strlen("") == 0); puts("done"); return 0; }