How actually is a derived class implementation on inheritance, as class is just abstract.
E.g.
Does a B object instantly "realize" having A member.Code:class A {public: int x;}; class B : public A {int y;};
Code:int main() { A a; B b; a.x =7; b.x += 3; // How is inheritance supposed to be? // how will be b.x =10? }