rust/src/test/run-pass/mut-function-arguments.rs

28 lines
681 B
Rust

// 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.
fn f(mut y: ~int) {
*y = 5;
assert *y == 5;
}
fn g() {
let frob: fn(~int) = |mut q| { *q = 2; assert *q == 2; };
let w = ~37;
frob(w);
}
pub fn main() {
let z = ~17;
f(z);
g();
}