summary refs log tree commit diff
path: root/src/test/run-pass/mut-function-arguments.rs
blob: 010f656d53141521cbead35054a0d0abd5b3b1ca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
// Copyright 2012 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.


#![allow(unknown_features)]
#![feature(box_syntax)]

fn f(mut y: Box<isize>) {
    *y = 5;
    assert_eq!(*y, 5);
}

fn g() {
    let frob = |mut q: Box<isize>| { *q = 2; assert_eq!(*q, 2); };
    let w = box 37;
    frob(w);

}

pub fn main() {
    let z = box 17;
    f(z);
    g();
}