How do I override and final specifiers?

In C++, the `override` and `final` specifiers are used in the context of inheritance to control how member functions behave in derived classes. Specifically, `override` indicates that a member function is meant to override a virtual function in a base class, while `final` indicates that a function cannot be overridden in any derived classes.

Using these specifiers helps make your code clearer and safer, preventing certain types of bugs related to inheritance and polymorphism.

Example of override and final in C++

class Base { public: virtual void show() { std::cout << "Base class show function called." << std::endl; } }; class Derived : public Base { public: void show() override { // This is an override std::cout << "Derived class show function called." << std::endl; } }; // Final class class FinalDerived : public Derived { public: void show() final { // This function cannot be overridden std::cout << "FinalDerived class show function called." << std::endl; } };

C++ override final inheritance polymorphism virtual functions