// 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. pub fn main() { let mut i = box 1i; // Should be a copy let mut j; j = i.clone(); *i = 2; *j = 3; assert_eq!(*i, 2); assert_eq!(*j, 3); }