File: promotion-mutable-ref.rs

package info (click to toggle)
rustc-web 1.70.0%2Bdfsg1-7~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,517,036 kB
  • sloc: xml: 147,962; javascript: 10,210; sh: 8,590; python: 8,220; ansic: 5,901; cpp: 4,635; makefile: 4,006; asm: 2,856
file content (17 lines) | stat: -rw-r--r-- 371 bytes parent folder | download | duplicates (9) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
// run-pass
#![feature(const_mut_refs)]

static mut TEST: i32 = {
    // We must not promote this, as CTFE needs to be able to mutate it later.
    let x = &mut [1,2,3];
    x[0] += 1;
    x[0]
};

// This still works -- it's not done via promotion.
#[allow(unused)]
static mut TEST2: &'static mut [i32] = &mut [0,1,2];

fn main() {
    assert_eq!(unsafe { TEST }, 2);
}