src/test/run-pass/unique-decl-init-copy.rs

   1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // pretty-expanded FIXME #23616
  12
  13 #![allow(unknown_features)]
  14 #![feature(box_syntax)]
  15
  16 pub fn main() {
  17     let mut i: Box<_> = box 1;
  18     // Should be a copy
  19     let mut j = i.clone();
  20     *i = 2;
  21     *j = 3;
  22     assert_eq!(*i, 2);
  23     assert_eq!(*j, 3);
  24 }