1 // Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution.
4 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
5 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
7 // option. This file may not be copied, modified, or distributed
8 // except according to those terms.
13 fn the_answer(ref mut x: u8) {
20 // Closures should not warn
21 let y = |ref x| println!("{:?}", x);
26 let ref y: (&_, u8) = (&1, 2);
30 let ref mut z = 1 + 2;
32 let (ref x, _) = (1, 2); // okay, not top level
33 println!("The answer is {}.", x);