Delete virtual function from a derived class

Question

I have a virtual base class function which should never be used in a particular derived class. Is there a way to \'delete\' it? I can of course just give it an empty definitio

Answer 1

I have a virtual base class function which should never be used in a particular derived class.

C++11 provides a keyword final which prevents a virtual function being overriden from.

Look: http://en.cppreference.com/w/cpp/language/final .

class B
{
  virtual void f() final;
};

class D : public B
{
  // virtual void f();  // a compile-time error
  // void f() override; // a compile-time error
  void f(); // non-virtual function, it's ok
};