mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-30 20:44:34 +00:00
31 lines
1005 B
Rust
31 lines
1005 B
Rust
//@ 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
|
|
}
|