std::packaged_task<> is a class template introduced with the C++11 multi-threading functionality. This tag should be used for questions concerning the C++ class template and using it with C++ multi-threading and coroutines. The C++ Standard being used (C++11/14/17/20) should also be indicated. The class template is used to wrap a callable entity (lambda, function, etc.) to create an asynchronous task.
