rust/tests/ui/lint/lint-invalid-atomic-ordering-fetch-update.rs
2023-01-11 09:32:08 +00:00

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`
}