Is there any way to know whether class has been inherited in C++

Question

In C++, Is there any way/ procedure to know whether particular class has been inherited by other class?

Is it possible in C++

Answer 1

For example lets say you have the following two classes:

class A {};

class B : public A {};

If you ask if there is a way to know if A have been inherited then no there is no such way.

If you ask if there is a way to know if B inherits from another class (no matter what class it is) then no there is not.

The closest you can get is probably std::is_polymorphic, which tells (compile time) if a class have virtual functions that can be inherited, or if a class have virtual functions that it have inherited. There is no functionality, compile time or run time, to tell if a class have been inherited, or what the base-classes of some class is.