description | title | ms.date | f1_keywords | helpviewer_keywords | ms.assetid | |||
---|---|---|---|---|---|---|---|---|
Learn more about: _WriteBarrier |
_WriteBarrier |
09/02/2019 |
|
|
a5ffdad9-0ca1-4eb7-b2f3-0f092c4bf4b5 |
Microsoft Specific
Limits the compiler optimizations that can reorder memory access operations across the point of the call.
Caution
The _ReadBarrier
, _WriteBarrier
, and _ReadWriteBarrier
compiler intrinsics and the MemoryBarrier
macro are all deprecated and should not be used. For inter-thread communication, use mechanisms such as atomic_thread_fence and std::atomic<T>, which are defined in the C++ Standard Library. For hardware access, use the /volatile:iso compiler option together with the volatile keyword.
void _WriteBarrier(void);
Intrinsic | Architecture |
---|---|
_WriteBarrier |
x86, x64 |
Header file <intrin.h>
The _WriteBarrier
intrinsic limits the compiler optimizations that can remove or reorder memory access operations across the point of the call.
END Microsoft Specific