Function std::intrinsics::atomic_xsub

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

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

Subtract from the current value, returning the previous value.

The stabilized version of this intrinsic is available on the atomic types via the fetch_sub method by passing Ordering::SeqCst as the order. For example, AtomicIsize::fetch_sub.