//ww:run
package main;
fn dup1(s: str) str = { return s; };
fn streq(a: str, b: str) bool = {
	if (a.len != b.len) { return false; };
	let i: i32 = 0;
	for (i < a.len) {
		if (a[i] != b[i]) { return false; };
		i += 1;
	};
	return true;
};
fn main() i32 = {
	let argv: [3]str;
	argv[0] = "a";
	argv[1] = "bb";
	argv[2] = "files.txt";
	if (!streq(dup1(argv[2]), "files.txt")) { return 11; };
	return 0;
};