Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
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) |