Comment by _randyr

I'm not a C++ programmer, but I was under the impression that closures in c++ were just classes that overload the function call operator `operator()`. So each closure could also be implemented as a named class. Something like:

    class OnListItemSelected {
        OnListItemSelectedData data;

        void operator()(int selectedIndex) { ... }
    }

Perhaps I'm mistaken in what the author is trying to accomplish though?