public static int main () {
Queue<int> queue = new Queue<int> ();
queue.push_tail (1);
queue.push_tail (2);
queue.push_tail (3);
// Output: ``1``
uint pos = queue.index (2);
print ("%u\n", pos);
return 0;
}
valac --pkg glib-2.0 GLib.Queue.index.vala