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Function `core.atomic.atomicFetchSub`

Atomically subtracts mod from the value referenced by val and returns the value val held previously. This operation is both lock-free and atomic.


						
				T atomicFetchSub(MemoryOrder ms = MemoryOrder.seq, T)
				(
				

				  scope ref return T val,
				

				  size_t mod
				

				) pure nothrow @nogc @trusted
				

				if ((__traits(isIntegral, T) || is(T == U*, U)) && !is(T == shared));
				

				

				T atomicFetchSub(MemoryOrder ms = MemoryOrder.seq, T)
				(
				

				  scope shared ref return T val,
				

				  size_t mod
				

				) pure nothrow @nogc @trusted
				

				if (__traits(isIntegral, T) || is(T == U*, U));

Parameters

Name	Description
val	Reference to the value to modify.
mod	The value to subtract.

Returns

The value held previously by val.

Authors

Sean Kelly, Alex Rønne Petersen, Manu Evans

License

Boost License 1.0