InterlockedAdd function (winnt.h)
Performs an atomic addition operation on the specified LONG values.
Syntax
LONG InterlockedAdd(
[in, out] LONG volatile *Addend,
[in] LONG Value
);
Parameters
[in, out] Addend
A pointer to the first operand. This value will be replaced with the result of the operation.
[in] Value
The second operand.
Return value
The function returns the result of the operation.
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 _InterlockedAdd.
This function generates a full memory barrier (or fence) to ensure that memory operations are completed in order.
Note This function is supported on Windows RT-based systems.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | winnt.h (include Windows.h) |