src/test/run-pass/issue-15080.rs

   1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
   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
  11
  12 #![feature(slice_patterns)]
  13
  14 fn main() {
  15     let mut x: &[_] = &[1, 2, 3, 4];
  16
  17     let mut result = vec!();
  18     loop {
  19         x = match *x {
  20             [1, n, 3, ref rest..] => {
  21                 result.push(n);
  22                 rest
  23             }
  24             [n, ref rest..] => {
  25                 result.push(n);
  26                 rest
  27             }
  28             [] =>
  29                 break
  30         }
  31     }
  32     assert_eq!(result, [2, 4]);
  33 }