blob: fa784e17b10f22806d43c514a01a4af18eeb7291 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
// Copyright 2013 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 swap(f: |Vec<int> | -> Vec<int> ) -> Vec<int> {
let x = vec!(1, 2, 3);
f(x)
}
pub fn main() {
let v = swap(|mut x| { x.push(4); x });
let w = swap(|mut x| { x.push(4); x });
assert_eq!(v, w);
}
|
