pub unsafe extern "rust-intrinsic" fn atomic_cxchg_acquire_seqcst<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.
The stabilized version of this intrinsic is available on the
atomic types via the compare_exchange method by passing
Ordering::Acquire and Ordering::SeqCst as the success and failure parameters.
For example, AtomicBool::compare_exchange.