30 lines
801 B
Rust
30 lines
801 B
Rust
// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Testing guarantees provided by once functions.
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// This program would segfault if it were legal.
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#![feature(once_fns)]
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extern crate sync;
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use sync::Arc;
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fn foo(blk: once ||) {
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blk();
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blk(); //~ ERROR use of moved value
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}
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fn main() {
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let x = Arc::new(true);
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foo(|| {
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assert!(*x);
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drop(x);
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})
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}
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