rust/src/test/run-pass/swap-2.rs
Ben Striegel 12e8151fb0 RIMOV, round 4
find ./ -type f -name "*.rs" -exec sed -i "s/let mut \(.*\)\[mut[
]\?/let mut \1\[/g" {} \;
2013-01-30 23:16:56 -05:00

23 lines
738 B
Rust

// 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.
fn swap<T>(v: &[mut T], i: int, j: int) { v[i] <-> v[j]; }
fn main() {
let mut a: ~[int] = ~[0, 1, 2, 3, 4, 5, 6];
swap(a, 2, 4);
assert (a[2] == 4);
assert (a[4] == 2);
let mut n = 42;
n <-> a[0];
assert (a[0] == 42);
assert (n == 0);
}