//ww:run-exit 69
package main;
type capture = struct { content: str, start: size };
type thread = struct { pc: size, captures: []capture,
	rep_counters: []size };
fn delete_thread(i: size, threads: *[]thread) void = {
	free((*threads)[i].captures);
	free((*threads)[i].rep_counters);
	delete((*threads)[i]);
};
export fn main() i32 = {
	let z: []capture;
	let zr: []size;
	let xs: []thread = [];
	append(xs, thread { pc = 1, captures = z, rep_counters = zr });
	append(xs, thread { pc = 2, captures = z, rep_counters = zr });
	append(xs, thread { pc = 3, captures = z, rep_counters = zr });
	delete_thread(1, &xs);
	if (len(xs) != 2) { return 1; };
	if (xs[0].pc != 1) { return 2; };
	if (xs[1].pc != 3) { return 3; };
	return 69;
};