What are constructors in C++ inheritance?

Can you explain how constructors work in C++ inheritance?

Sure! In C++, constructors are special member functions that are called when an object of a class is created. In inheritance, the constructor of the base class is called before the derived class's constructor.

What happens if the base class constructor is private?

If the base class constructor is private, the derived class cannot directly call it, which will lead to a compilation error unless the derived class is a friend of the base class.

Can you give an example of constructor initialization in derived classes?

Absolutely! Here's a simple example:

class Base {
public:
    Base() { std::cout << "Base constructor called"; }
};

class Derived : public Base {
public:
    Derived() : Base() { std::cout << "Derived constructor called"; }
};

In this example, when a Derived object is created, the Base constructor is called first.

Are there any rules for constructor calls in multiple inheritance?

Yes, in multiple inheritance, the constructors of all base classes are called in the order they are listed in the derived class's constructor initialization list.