| // Copyright 2017 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. |
| |
| fn save_ref<'a>(refr: &'a i32, to: &mut [&'a i32]) { |
| for val in &mut *to { |
| *val = refr; |
| } |
| } |
| |
| fn main() { |
| let ref init = 0i32; |
| let ref mut refr = 1i32; |
| |
| let mut out = [init]; |
| |
| save_ref(&*refr, &mut out); |
| |
| // This shouldn't be allowed as `refr` is borrowed |
| *refr = 3; //~ ERROR cannot assign to `*refr` because it is borrowed |
| |
| // Prints 3?! |
| println!("{:?}", out[0]); |
| } |
