mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-27 01:04:03 +00:00
50 lines
3.2 KiB
Rust
50 lines
3.2 KiB
Rust
// only-x86_64
|
|
use std::sync::atomic::{AtomicIsize, Ordering};
|
|
|
|
fn main() {
|
|
// `fetch_update` testing
|
|
let x = AtomicIsize::new(0);
|
|
|
|
// Allowed ordering combos
|
|
let _ = x.fetch_update(Ordering::Relaxed, Ordering::Relaxed, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::Relaxed, Ordering::Acquire, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::Relaxed, Ordering::SeqCst, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::Acquire, Ordering::Relaxed, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::Acquire, Ordering::Acquire, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::Acquire, Ordering::SeqCst, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::Release, Ordering::Relaxed, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::Release, Ordering::Acquire, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::Release, Ordering::SeqCst, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::AcqRel, Ordering::Relaxed, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::AcqRel, Ordering::Acquire, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::AcqRel, Ordering::SeqCst, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::SeqCst, Ordering::Relaxed, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::SeqCst, Ordering::Acquire, |old| Some(old + 1));
|
|
let _ = x.fetch_update(Ordering::SeqCst, Ordering::SeqCst, |old| Some(old + 1));
|
|
|
|
// AcqRel is always forbidden as a failure ordering
|
|
let _ = x.fetch_update(Ordering::Relaxed, Ordering::AcqRel, |old| Some(old + 1));
|
|
//~^ ERROR `fetch_update`'s failure ordering may not be `Release` or `AcqRel`
|
|
let _ = x.fetch_update(Ordering::Acquire, Ordering::AcqRel, |old| Some(old + 1));
|
|
//~^ ERROR `fetch_update`'s failure ordering may not be `Release` or `AcqRel`
|
|
let _ = x.fetch_update(Ordering::Release, Ordering::AcqRel, |old| Some(old + 1));
|
|
//~^ ERROR `fetch_update`'s failure ordering may not be `Release` or `AcqRel`
|
|
let _ = x.fetch_update(Ordering::AcqRel, Ordering::AcqRel, |old| Some(old + 1));
|
|
//~^ ERROR `fetch_update`'s failure ordering may not be `Release` or `AcqRel`
|
|
let _ = x.fetch_update(Ordering::SeqCst, Ordering::AcqRel, |old| Some(old + 1));
|
|
//~^ ERROR `fetch_update`'s failure ordering may not be `Release` or `AcqRel`
|
|
|
|
// Release is always forbidden as a failure ordering
|
|
let _ = x.fetch_update(Ordering::Relaxed, Ordering::Release, |old| Some(old + 1));
|
|
//~^ ERROR `fetch_update`'s failure ordering may not be `Release` or `AcqRel`
|
|
let _ = x.fetch_update(Ordering::Acquire, Ordering::Release, |old| Some(old + 1));
|
|
//~^ ERROR `fetch_update`'s failure ordering may not be `Release` or `AcqRel`
|
|
let _ = x.fetch_update(Ordering::Release, Ordering::Release, |old| Some(old + 1));
|
|
//~^ ERROR `fetch_update`'s failure ordering may not be `Release` or `AcqRel`
|
|
let _ = x.fetch_update(Ordering::AcqRel, Ordering::Release, |old| Some(old + 1));
|
|
//~^ ERROR `fetch_update`'s failure ordering may not be `Release` or `AcqRel`
|
|
let _ = x.fetch_update(Ordering::SeqCst, Ordering::Release, |old| Some(old + 1));
|
|
//~^ ERROR `fetch_update`'s failure ordering may not be `Release` or `AcqRel`
|
|
|
|
}
|