pub unsafe fn atomic_xsub<T, U, const ORD: AtomicOrdering>(
dst: *mut T,
src: U,
) -> Twhere
T: Copy,
U: Copy,
core_intrinsics)
Subtract from 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_sub method. For example, AtomicIsize::fetch_sub.
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Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/intrinsics/fn.atomic_xsub.html