rust/src/test/run-pass/foreach-external-iterators-nested.rs

// 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 x = [1i; 100];
    let y = [2i; 100];
    let mut p = 0i;
    let mut q = 0i;
    for i in x.iter() {
        for j in y.iter() {
            p += *j;
        }
        q += *i + p;
    }
    assert!(q == 1010100);
}