Call parent virtual function : virtual function « Class « C++

1. C++
2. Class
3. virtual function

Call parent virtual function

  
#include <iostream>
#include <string>

using namespace std;

class Book
{
public:
  virtual string getDescription() { return "Book"; }
};

class Paperback : public Book
{
public:
  virtual string getDescription() { 
    return "Paperback " + Book::getDescription(); 
  }
};

class Romance : public Paperback
{
public:
  virtual string getDescription() { 
    return "Romance " + Paperback::getDescription(); 
  }
};

class Technical : public Book
{
public:
  virtual string getDescription() { 
    return "Technical " + Book::getDescription();
  }
};

int main()
{
  Romance novel;
  Book book;
  cout << novel.getDescription() << endl;
  cout << book.getDescription(); 
}
  
    
  

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