1 // Copyright 2014 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.
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.
11 // pretty-expanded FIXME #23616
13 #![allow(unknown_features)]
14 #![feature(box_syntax)]
16 fn borrow<F>(x: &int, f: F) where F: FnOnce(&int) {
20 fn test1(x: &Box<int>) {
21 borrow(&*(*x).clone(), |p| {
22 let x_a = &**x as *const int;
23 assert!((x_a as uint) != (p as *const int as uint));
24 assert_eq!(unsafe{*x_a}, *p);