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Microsoft Specific

Performs an interlocked addition in which the first operand is a 64-bit value.

long _InterlockedAddLargeStatistic(
   __int64 volatile * Addend,
   long Value

[in, out] Addend

A pointer to the first operand to the add operation. The value pointed to is replaced by the result of the addition.

[in] Value

The second operand; value to add to the first operand.

The value of the second operand.





Header file <intrin.h>

This intrinsic is not atomic because it is implemented as two separate locked instructions. An atomic 64-bit read that occurs on another thread during the execution of this intrinsic could result in an inconsistent value being read.

In Visual C++ 2005, this function behaves as a read-write barrier. For more information, see _ReadWriteBarrier.