summaryrefslogtreecommitdiffstats
path: root/tests/ui/lint/lint-invalid-atomic-ordering-ptr.rs
blob: 984f7edebd1df1f9d1454f4de82b961a3d2e1c79 (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
// only-x86_64
use std::sync::atomic::{AtomicPtr, Ordering};

fn main() {
    let ptr = &mut 5;
    let other_ptr = &mut 10;
    let x = AtomicPtr::new(ptr);

    // Allowed load ordering modes
    let _ = x.load(Ordering::Acquire);
    let _ = x.load(Ordering::SeqCst);
    let _ = x.load(Ordering::Relaxed);

    // Disallowed load ordering modes
    let _ = x.load(Ordering::Release);
    //~^ ERROR atomic loads cannot have `Release` or `AcqRel` ordering
    let _ = x.load(Ordering::AcqRel);
    //~^ ERROR atomic loads cannot have `Release` or `AcqRel` ordering

    // Allowed store ordering modes
    x.store(other_ptr, Ordering::Release);
    x.store(other_ptr, Ordering::SeqCst);
    x.store(other_ptr, Ordering::Relaxed);

    // Disallowed store ordering modes
    x.store(other_ptr, Ordering::Acquire);
    //~^ ERROR atomic stores cannot have `Acquire` or `AcqRel` ordering
    x.store(other_ptr, Ordering::AcqRel);
    //~^ ERROR atomic stores cannot have `Acquire` or `AcqRel` ordering
}