| // 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. |
| |
| fn with_int<F>(f: F) where F: FnOnce(&isize) { |
| let x = 3; |
| f(&x); |
| } |
| |
| fn main() { |
| let mut x = None; |
| with_int(|y| x = Some(y)); |
| //~^ ERROR cannot infer |
| } |
