Function `atomic_xadd`

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

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.