| description | Learn more about: _WriteBarrier | ||
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| title | _WriteBarrier | ||
| ms.date | 09/02/2019 | ||
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| ms.assetid | 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