// -*- rust -*-

fn main() {
  let vec[int] v = [10, 20];
  assert (v.(0) == 10);
  assert (v.(1) == 20);
  let int x = 0;
  assert (v.(x) == 10);
  assert (v.(x + 1) == 20);
  x = x + 1;
  assert (v.(x) == 20);
  assert (v.(x-1) == 10);
}