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1a4d82fc | 1 | // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
223e47cc LB |
2 | // file at the top-level directory of this distribution and at |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
c34b1796 AL |
11 | |
12 | #![feature(slice_patterns)] | |
13 | ||
223e47cc | 14 | fn main() { |
85aaf69f | 15 | let mut x: &[_] = &[1, 2, 3, 4]; |
1a4d82fc JJ |
16 | |
17 | let mut result = vec!(); | |
18 | loop { | |
19 | x = match x { | |
20 | [1, n, 3, rest..] => { | |
21 | result.push(n); | |
22 | rest | |
23 | } | |
24 | [n, rest..] => { | |
25 | result.push(n); | |
26 | rest | |
27 | } | |
28 | [] => | |
29 | break | |
223e47cc LB |
30 | } |
31 | } | |
62682a34 | 32 | assert_eq!(result, [2, 4]); |
223e47cc | 33 | } |