Function atomic_xadd

pub unsafe fn atomic_xadd<T, U, const ORD: AtomicOrdering>(
    dst: *mut T,
    src: U,
) -> T
where
    T: Copy,
    U: Copy,

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

Adds to the current value, returning the previous value. T must be an integer or pointer type. U must be the same as T if that is an integer type, or usize if T is a pointer type.

The stabilized version of this intrinsic is available on the atomic types via the fetch_add method. For example, AtomicIsize::fetch_add.