// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.


pub fn main() {
    let mut sum: int = 0;
    first_ten(|i| { println!("main"); println!("{}", i); sum = sum + i; });
    println!("sum");
    println!("{}", sum);
    assert_eq!(sum, 45);
}

fn first_ten(it: |int|) {
    let mut i: int = 0;
    while i < 10 { println!("first_ten"); it(i); i = i + 1; }
}