Visible to Intel only — GUID: GUID-168454A5-147E-4B02-A4A6-623CF658B46A
Visible to Intel only — GUID: GUID-168454A5-147E-4B02-A4A6-623CF658B46A
HLE Acquire _InterlockedCompareExchange Functions
Performs an atomic compare-and-exchange operation on the specified values and attempts to begin a HLE transaction if supported by the executing platform. This intrinsic function applies to C/C++ applications for Windows only.
Syntax
long _InterlockedCompareExchange_HLEAcquire(long volatile *Destination, long Exchange, long Comparand); |
__int64 _InterlockedCompareExchange64_HLEAcquire(__int64 volatile *Destination, __int64 Exchange, __int64 Comparand); |
void * _InterlockedCompareExchangePointer_HLEAcquire(void * volatile *Destination, void * Exchange, void * Comparand); |
Parameters
Destination [in, out] |
pointer to the destination value |
Exchange [in] |
value which will be written at Destination if the comparison matches. |
Comparand [in] |
value to compare to the value referenced by Destination. |
Description
Performs an atomic compare-and-exchange operation on the specified values, and also attempts to begin a HLE transaction if the executing platform supports it.
These functions compare two specified values and replaces one of them with a third value if the compared values are equal.
Returns
Returns the initial value referenced by the Destination parameter.