1 // Copyright 2018 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.
13 fn flatten<'a, 'b, T>(x: &'a &'b T) -> &'a T {
18 let mut x = "original";
23 //~^ ERROR cannot assign to `x` because it is borrowed [E0506]
24 println!("{}", w); // prints "modified"