// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. fn main() { let i = ~mut 1; // Should be a copy let j = copy i; *i = 2; *j = 3; assert *i == 2; assert *j == 3; }