#![warn(clippy::invalid_atomic_ordering)] use std::sync::atomic::{compiler_fence, fence, Ordering}; fn main() { // Allowed fence ordering modes fence(Ordering::Acquire); fence(Ordering::Release); fence(Ordering::AcqRel); fence(Ordering::SeqCst); // Disallowed fence ordering modes fence(Ordering::Relaxed); compiler_fence(Ordering::Acquire); compiler_fence(Ordering::Release); compiler_fence(Ordering::AcqRel); compiler_fence(Ordering::SeqCst); compiler_fence(Ordering::Relaxed); }