If the previous post showed something, it's that you should use mutexes with great care. That's why you should wrap them in a lock.

The usage of mutexes seems extremely simple. There is a critical section in the code that a single thread can only access at any point in time. It's ensured by a mutex m. The calls m.lock() and m.unlock() guarantee this exclusivity. But the devil is in the details.

I created a repository for the source code. It's on GitHub and has the name ModernesCppSource:
https://github.com/RainerGrimm/ModernesCppSource.git

Thread creation is easy. Call  std::thread, and a new thread will be created. The thread gets a work package and starts it immediately. The creator of the thread (the Parent) has to take care of the created thread (the child). The parent should wait until their child completes their task or has to detach himself from the child. The child thread can get its payload task arguments by copy or by reference.

One of the biggest challenges of thread management begins when the threads share non-const data

A thread gets its data by copy or by reference. By default, you should use by copy. Why? In case your thread gets its data by reference, you have to be extremely careful about the lifetime of the arguments.

The parent has to take care of their child. This simple idea has big consequences for a thread lifetime. The following program starts a thread that displays its ID.

After a lot of discussion with my proofreaders, we finally have a process to publish the articles.

With the new C++11 Standard, C++ faces the first-time challenges of multicore architectures. The 2011 published standard defines how a C++ program has to behave in the presence of multiple threads. The C++11 multithreading capabilities are composed of two components. On the one hand, this is the defined memory model, and on the other hand, the standardized threading interface.

For half a year I have a blog about modern C++: Modernes C++. Although 80% of the readers are used to English, the blog is written in German. So I decided to translate the articles successively into English. Because my English is not as good as my German I asked a few people for help. They will proofread the syntax of my articles. Now I have a few volunteers and I'm ready to start. I will still write my articles in the first place in English, but my hope is, that the German and English articles are in lockstep in half a year.
Because the roots of my blogs are in German, I will continue to call them Modernes C++. That is not by mistake.