rust/src/test/compile-fail/borrowck-vec-pattern-tail-element-loan.rs
2014-02-11 16:55:25 -05:00

24 lines
728 B
Rust

// Copyright 2014 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.
fn a() -> &int {
let vec = ~[1, 2, 3, 4];
let tail = match vec {
[_a, ..tail] => &tail[0], //~ ERROR `vec[..]` does not live long enough
_ => fail!("foo")
};
tail
}
fn main() {
let fifth = a();
println!("{}", *fifth);
}