atomic_cxchgweak_acquire_relaxed in core::intrinsics - Rust
Description: Stores a value if the current value is the same as the `old` value. `T` must be an integer or pointer type.

# Function atomic_cxchgweak_acquire_relaxed

Source

    pub unsafe fn atomic_cxchgweak_acquire_relaxed<T: Copy>(
        _dst: *mut T,
        _old: T,
        _src: T,
    ) -> (T, bool)

🔬This is a nightly-only experimental API. (`core_intrinsics`)
Expand description

Stores a value if the current value is the same as the `old` value. `T` must be an integer or pointer type.

The stabilized version of this intrinsic is available on the `atomic` types via the `compare_exchange_weak` method by passing `Ordering::Acquire` and `Ordering::Relaxed` as the success and failure parameters. For example, `AtomicBool::compare_exchange_weak`.