Function Overriding In C++

Function overriding in C++ occurs when a derived class defines the same function as its base class. It’s implemented to accomplish polymorphism at runtime. It allows you to create a customised implementation of a function that is already available in the base class.

Function Overriding Example In C++:

Let’s look at a simple function overriding example in C++. We’re overriding the eat() function in this example.

#include <iostream>  
using namespace std;  
class Animal {  
    public:  
void eat(){    
cout<<"Eating...";    
    }      
};   
class Dog: public Animal    
{    
 public:  
 void eat()    
    {    
       cout<<"Eating bread...";    
    }    
};  
int main(void) {  
   Dog d = Dog();    
   d.eat();  
   return 0;  
}  

Output:

Eating bread...