| description | Learn more about: _ReadBarrier | |
|---|---|---|
| title | _ReadBarrier | |
| ms.date | 09/02/2019 | |
| f1_keywords |
|
|
| helpviewer_keywords |
|
|
| ms.assetid | f9e54a92-61bc-4f55-8195-b8932065a796 |
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> that are defined in the C++ Standard Library. For hardware access, use the /volatile:iso compiler option together with the volatile keyword.
void _ReadBarrier(void);| Intrinsic | Architecture |
|---|---|
_ReadBarrier |
x86, x64 |
Header file <intrin.h>
The _ReadBarrier intrinsic limits the compiler optimizations that can remove or reorder memory access operations across the point of the call.
END Microsoft Specific