Atomic operations library design and implementation

Design of C++ atomic library

在工程parallel-computing的Concurrent-computing\Multithread\Thread-safety\What-cause-unsafety章节总结了导致非线程安全的两个原因，C++ atomic library提供了对这两个cause的控制:

1、std::atomic: 避免了 Race condition

2、std::memory_ordering: 对memory ordering进行控制

更多详细的信息，参见工程programming language的 C++\Guide\Memory-model\Atomic-operations-library\Design-and-implementation 章节。

std::atomic is neither copyable nor movable

为什么这样设计呢？

std::atomic<bool> as static member

1、stackoverflow Initialize static atomic member variable

A

std::atomic<int> order::c(0);   // or {0} for a more C++11 experience

TODO

https://www.decadent.org.uk/pipermail/cpp-threads/2008-December/001933.html

stackoverflow Where is the lock for a std::atomic?