File: copy.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-2
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 934,168 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (18 lines) | stat: -rw-r--r-- 259 bytes parent folder | download | duplicates (16) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
//@ run-pass

fn f(arg: &mut A) {
    arg.a = 100;
}

#[derive(Copy, Clone)]
struct A { a: isize }

pub fn main() {
    let mut x = A {a: 10};
    f(&mut x);
    assert_eq!(x.a, 100);
    x.a = 20;
    let mut y = x;
    f(&mut y);
    assert_eq!(x.a, 20);
}