InterlockedXor64 function

Performs an atomic XOR operation on the specified LONGLONG values. The function prevents more than one thread from using the same variable simultaneously.

Syntax

C++


LONGLONG __cdecl InterlockedXor64(
  _Inout_ LONGLONG volatile *Destination,
  _In_    LONGLONG          Value
);

Parameters

Destination [in, out]: A pointer to the first operand. This value will be replaced with the result of the operation.
Value [in]: The second operand.

Return value

The function returns the original value of the Destination parameter.

Remarks

The interlocked functions provide a simple mechanism for synchronizing access to a variable that is shared by multiple threads. This function is atomic with respect to calls to other interlocked functions.

This function is implemented using a compiler intrinsic where possible. For more information, see the WinBase.h header file and _InterlockedXor64.

This function generates a full memory barrier (or fence) to ensure that memory operations are completed in order.

Itanium-based systems: For performance-critical applications, use InterlockedXor64Acquire or InterlockedXor64Release instead.

Note This function is supported on Windows RT-based systems.

Note

Requirements

Header	WinBase.h (include Windows.h)