“pseudo-atomic” operations in C++

前端 未结 7 1670
北海茫月
北海茫月 2021-02-02 17:44

So I\'m aware that nothing is atomic in C++. But I\'m trying to figure out if there are any \"pseudo-atomic\" assumptions I can make. The reason is that I want to avoid using

相关标签:
7条回答
  • 2021-02-02 18:44

    Volatile in C++ do not plays the same role than in Java. All the cases are undefined behavior as Steve saids. Some cases can be Ok for a compiler, oa given processor architecture and with a multi-threading system, but switching the optimization flags can make your program behave differently, as the C++03 compilers don't know about threads.

    C++0x defines the rules that avoid race conditions and the operations that help you to master that, but to may knowledge there is no yet a compiler that implement yet all the part of the standard related to this subject.

    0 讨论(0)
提交回复
热议问题