InterlockedIncrement16Acquire function
Increments (increases by one) the value of the specified 16-bit variable as an atomic operation. The operation is performed using acquire memory ordering semantics.
Syntax
short __cdecl InterlockedIncrement16Acquire( _Inout_ short volatile *Addend );
Parameters
- Addend [in, out]
-
A pointer to the variable to be incremented.
Return value
The function returns the resulting incremented value.
Remarks
The variable pointed to by the Addend parameter must be aligned on a 16-bit boundary; otherwise, this function will behave unpredictably on multiprocessor x86 systems and any non-x86 systems. See _aligned_malloc.
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 _InterlockedIncrement16_acq.
For processors that do not support acquire memory ordering semantics, this function is defined as a call to the InterlockedIncrement function. For more information, see WinBase.h.
Requirements
|
Minimum supported client |
Windows 8 [desktop apps only] |
|---|---|
|
Minimum supported server |
Windows Server 2012 [desktop apps only] |
|
Header |
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See also
- Interlocked Variable Access
- InterlockedIncrement
- InterlockedIncrementAcquire
- InterlockedIncrementRelease
- InterlockedIncrementNoFence
- InterlockedIncrement16
- InterlockedIncrement16Release
- InterlockedIncrement16NoFence
- InterlockedIncrement64
- InterlockedIncrementAcquire64
- InterlockedIncrementRelease64
- InterlockedIncrementNoFence64
- InterlockedDecrement
- Synchronization Functions