| // 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. |
| |
| #![allow(unknown_features)] |
| #![feature(box_syntax)] |
| |
| use std::thread; |
| |
| pub fn main() { test05(); } |
| |
| fn test05_start<F:FnOnce(isize)>(f: F) { |
| f(22); |
| } |
| |
| fn test05() { |
| let three: Box<_> = box 3; |
| let fn_to_send = move|n:isize| { |
| println!("{}", *three + n); // will copy x into the closure |
| assert_eq!(*three, 3); |
| }; |
| thread::spawn(move|| { |
| test05_start(fn_to_send); |
| }).join().ok().unwrap(); |
| } |