// Copyright 2012-2014 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #![feature(globs)] #![allow(dead_assignment)] use std::mem::*; pub fn main() { assert_eq!(size_of::(), 1); let (mut x, mut y) = (1i, 2i); swap(&mut x, &mut y); assert_eq!(x, 2); assert_eq!(y, 1); }