rust/src/test/compile-fail/borrowck-borrowed-uniq-rvalue.rs

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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.
//buggy.rs
extern mod std;
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use std::map::HashMap;
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use std::map;
fn main() {
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let buggy_map :HashMap<uint, &uint> =
HashMap::<uint, &uint>();
buggy_map.insert(42, &*~1); //~ ERROR illegal borrow
// but it is ok if we use a temporary
let tmp = ~2;
buggy_map.insert(43, &*tmp);
}