[Findecanor]

Yes, you can have a private virtual member function, and it can be overridden in a child class (unless declared final), apparently.

I too thought that sounded insane, so I just looked it up. I've been programming C++ for twenty five years and the thought of wanting to do this have never ever occurred to me...

[usefulcat]

It could make sense if you have a method that you want derived classes to be able to override but not to be able to call directly.

This is, admittedly, a pretty niche case but certainly not inconceivable.

[zetafunction]

Except the derived class can simply change the visibility of the override, so...

[AnimalMuppet]

TIL.