rust/src/test/run-pass/unique-copy-box.rs
2013-03-29 16:39:08 -07:00

22 lines
723 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.
pub fn main() {
unsafe {
let i = ~@1;
let j = ~@2;
let rc1 = sys::refcount(*i);
let j = copy i;
let rc2 = sys::refcount(*i);
error!("rc1: %u rc2: %u", rc1, rc2);
assert!(rc1 + 1u == rc2);
}
}