src/test/run-pass/exterior.rs

   1 // Copyright 2012 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
  13
  14 // -*- rust -*-
  15 struct Point {x: int, y: int, z: int}
  16
  17 fn f(p: @mut Point) { assert!((p.z == 12)); p.z = 13; assert!((p.z == 13)); }
  18
  19 pub fn main() {
  20     let a: Point = Point {x: 10, y: 11, z: 12};
  21     let b: @mut Point = @mut copy a;
  22     assert_eq!(b.z, 12);
  23     f(b);
  24     assert_eq!(a.z, 12);
  25     assert_eq!(b.z, 13);
  26 }