Dynamic Binding / Virtual Functions

Virtual function is a mechanism to implement the concept of polymorphism. Virtual Functions are resolved during run-time. It is called dynamic binding.

Code:

#include<iostream>

using namespace std;

class Base
{
public:

   virtual void disp()
   {
      cout<<"Base disp function";
   }
};

class Derived:public Base
{

public:

   void disp()
   {
      cout<<"Derived disp function";
   }
};

int main()
{
   Base *b=new Derived;
   b->disp();
}



the other name of dynamic binding is late binding.