hello.rs

use std;

type counter = fn@ () -> int;

fn make_counter() -> counter {
  let n = @mutable 0;
  ret fn@ () -> int {
    let r = *n;
    *n += 1;
    ret r;
  };
}

fn main(_args:[str]) {
  let c = make_counter();
  std::io::println(#fmt("%d", c()));
  std::io::println(#fmt("%d", c()));
}