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InterlockedIncrement function (wdm.h)
The InterlockedIncrement routine increments a caller-supplied variable as an atomic operation.
Syntax
LONG CDECL_NON_WVMPURE InterlockedIncrement(
[in, out] LONG volatile *Addend
);
Parameters
[in, out] Addend
A pointer to a variable of type LONG.
Return value
InterlockedIncrement returns the incremented value.
Remarks
InterlockedIncrement should be used instead of ExInterlockedIncrementLong because it is both more efficient and faster.
InterlockedIncrement is implemented inline by the compiler when appropriate and possible. It does not require a spin lock and can therefore be safely used on pageable data.
InterlockedIncrement is atomic only with respect to other InterlockedXxx calls.
Interlocked operations cannot be used on non-cached memory.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available starting with Windows 2000. |
| Target Platform | Universal |
| Header | wdm.h (include Wdm.h, Ntddk.h, Ntifs.h, Miniport.h) |
| Library | OneCoreUAP.lib on Windows 10 |
| IRQL | Any level |
See also
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