final class in c++

Question

class Temp
{
private:
    ~Temp() {}
    friend class Final;
};

class Final : virtual public Temp
{
public:
     void fun()
     {
         cout<<\"In base\";         


        

Answer 1

And of course the proper way to do it today is to use the final keyword. For example:

class Foo final {
public:
  Foo() {}
  ~Foo() {}

  void bar() {
     // ...
  }
};