30 lines
740 B
Rust
30 lines
740 B
Rust
// Copyright 2013 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.
|
|
|
|
// Testing guarantees provided by once functions.
|
|
|
|
// xfail-fast
|
|
|
|
#[feature(once_fns)];
|
|
extern mod extra;
|
|
use extra::arc;
|
|
|
|
fn foo(blk: proc()) {
|
|
blk();
|
|
}
|
|
|
|
pub fn main() {
|
|
let x = arc::Arc::new(true);
|
|
do foo {
|
|
assert!(*x.get());
|
|
drop(x);
|
|
}
|
|
}
|