Windows desktop applications
Collapse the table of content
Expand the table of content
Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

_WriteBarrier

Microsoft Specific

Limits the compiler optimizations that can reorder memory access operations across the point of the call.

Caution note 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 Template Library. For hardware access, use the /volatile:iso compiler option together with the volatile (C++) 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.

Community Additions

Show:
© 2016 Microsoft