Concurrent programming in C++

The concurrency support in C++ makes it possible for a program to execute multiple tasks concurrently. As mentioned earlier, writing a correct concurrent C++ program is, in general, a lot harder than writing a program that executes all tasks sequentially in one thread. This section will also demonstrate some common pitfalls to make you aware of all the difficulties involved in writing concurrent programs.

Concurrency support was first introduced in C++11 and has since been extended into C++14, C++17, and C++20. Before concurrency was part of the language, it was implemented with native concurrency support from the operating system, POSIX Threads (pthreads), or some other library.

With concurrency support directly in the C++ language, we can write cross-platform concurrent programs, which is great! Sometimes, however, you have to reach for platform-specific functionality when dealing with concurrency on your platform. For example, there is no...