[pjmlp]

The code snippet example I wrote was actually .NET with TPL.

C++ with PPL on Windows, would be

    task<T> handle = create_task([] { /* ... */ });

And with standard C++

    future<T> handle = std::async(std::launch::async, [] { /* ... */ });

In both cases, with C++20 it will be possible to co_await handle, which you can already play with on clang and VC++.