boost::thread_group in C++11?

Question

Is there anything like boost::thread_group in C++11?

I'm just trying to port my program from using boost:thread to C++11 threads and wasn't able to find anything equivalent.

Answer 1

No, there's nothing directly equivalent to boost::thread_group in C++11. You could use a std::vector<std::thread> if all you want is a container. You can then use either the new for syntax or std::for_each to call join() on each element, or whatever.

Answer 2

thread_group didn't make it into C++11, C++14, C++17 or C++20 standards.

But a workaround is simple:

  std::vector<std::thread> grp;    // to create threads   grp.emplace_back(functor); // pass in the argument of std::thread()    void join_all() {     for (auto& thread : grp)         thread.join();   } 

Not even worth wrapping in a class (but is certainly possible).