When should you use "using Base::operator();"?

[Michal-Mahn]

Channel

C++Weekly

Topics

What does "using Base::operator();" do in a class derived from Base? When do you need it? When should you use it and when not? Is there ever a reason to make it private or protected? How does it work with templates and multi-inheritance?

Length

5-10 minutes should be enough, I think