# Function std::intrinsics::atomic_xchg_acqrel

source ·

    pub unsafe extern "rust-intrinsic" fn atomic_xchg_acqrel<T>(
        dst: *mut T,
        src: T
    ) -> Twhere
        T: Copy,

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

Stores the value at the specified memory location, returning the old value.

The stabilized version of this intrinsic is available on the `atomic` types via the `swap` method by passing `Ordering::AcqRel` as the `order`. For example, `AtomicBool::swap`.