virtual function from base and derived classes : virtual function « Class « C++

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

virtual function from base and derived classes

   
#include <iostream>
#include <string.h>
using namespace std;
class Base 
{
 public:
   virtual void show_message(void) { cout << "Base class message" << endl; };
   virtual void show_reverse(void) = 0;
};

class Derived : public Base 
{
 public:
   virtual void show_message(void) { cout << "Derived class message" << endl; };
   virtual void show_reverse(void) { cout << strrev("Derived class message") << endl; };
};

int main(void)
{
   Base *poly = new Derived;
   poly->show_message();
   poly->show_reverse();
}
  
    
    
  

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