33923f47e3
Preparatory work for removing unique vectors from the language, which is itself preparatory work for dynamically sized types.
42 lines
1.1 KiB
Rust
42 lines
1.1 KiB
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 vec: &[int] = vec; //~ ERROR does not live long enough
|
|
let tail = match vec {
|
|
[_, ..tail] => tail,
|
|
_ => fail!("a")
|
|
};
|
|
tail
|
|
}
|
|
|
|
fn b() -> &[int] {
|
|
let vec = ~[1, 2, 3, 4];
|
|
let vec: &[int] = vec; //~ ERROR does not live long enough
|
|
let init = match vec {
|
|
[..init, _] => init,
|
|
_ => fail!("b")
|
|
};
|
|
init
|
|
}
|
|
|
|
fn c() -> &[int] {
|
|
let vec = ~[1, 2, 3, 4];
|
|
let vec: &[int] = vec; //~ ERROR does not live long enough
|
|
let slice = match vec {
|
|
[_, ..slice, _] => slice,
|
|
_ => fail!("c")
|
|
};
|
|
slice
|
|
}
|
|
|
|
fn main() {}
|