rust/src/test/run-pass/break.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 mut i = 0;
    while i < 20 { i += 1; if i == 10 { break; } }
    assert_eq!(i, 10);
    loop { i += 1; if i == 20 { break; } }
    assert_eq!(i, 20);
    let xs = [1, 2, 3, 4, 5, 6];
    for x in xs.iter() {
        if *x == 3 { break; } assert!((*x <= 3));
    }
    i = 0;
    while i < 10 { i += 1; if i % 2 == 0 { loop; } assert!((i % 2 != 0)); }
    i = 0;
    loop {
        i += 1; if i % 2 == 0 { loop; } assert!((i % 2 != 0));
        if i >= 10 { break; }
    }
    let ys = ~[1, 2, 3, 4, 5, 6];
    for x in ys.iter() {
        if *x % 2 == 0 { loop; }
        assert!((*x % 2 != 0));
    }
}