Difference between private, public, and protected inheritance

Question

What is the difference between public, private, and protected inheritance in C++?

Answer 1

Summary:

• Private: no one can see it except for within the class
• Protected: Private + derived classes can see it
• Public: the world can see it

When inheriting, you can (in some languages) change the protection type of a data member in certain direction, e.g. from protected to public.