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// 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::sync::mpsc::{channel, Sender};
use std::thread;
fn child(tx: &Sender<Box<usize>>, i: usize) {
tx.send(box i).unwrap();
}
pub fn main() {
let (tx, rx) = channel();
let n = 100;
let mut expected = 0;
let ts = (0..n).map(|i| {
expected += i;
let tx = tx.clone();
thread::spawn(move|| {
child(&tx, i)
})
}).collect::<Vec<_>>();
let mut actual = 0;
for _ in 0..n {
let j = rx.recv().unwrap();
actual += *j;
}
assert_eq!(expected, actual);
for t in ts { t.join(); }
}
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