What is the override keyword in C++11?

Can you explain what the override keyword is in C++11?

Sure! The override keyword in C++11 is used in derived classes to indicate that a method is intended to override a virtual method in a base class.

Why is it important to use the override keyword?

Using the override keyword helps catch errors at compile time. If the base class method is not virtual or the signatures don't match, the compiler will generate an error.

Can you give me an example of how to use it?

Certainly! Here's a simple example:

class Base {
    virtual void display();
};

class Derived : public Base {
    void display() override; // This indicates that display() overrides Base's display()
};

What happens if I forget to use override?

If you forget to use override, the code will still compile, but if the method does not actually override a base class method, it can lead to subtle bugs.