Differentiate between function overloading and function overriding

Question

Differentiate between function overloading and function overriding in C++?

Answer 1

Overriding means, giving a different definition of an existing function with same parameters, and overloading means adding a different definition of an existing function with different parameters.

Example:

#include 

class base{
    public:
    //this needs to be virtual to be overridden in derived class
    virtual void show(){std::cout<<"I am base";}
    //this is overloaded function of the previous one
    void show(int x){std::cout<<"\nI am overloaded";} 
};

class derived:public base{
    public:
    //the base version of this function is being overridden
    void show(){std::cout<<"I am derived (overridden)";}
};


int main(){
    base* b;
    derived d;
    b=&d;
    b->show();  //this will call the derived overriden version
    b->show(6); // this will call the base overloaded function
}

Output:

I am derived (overridden)
I am overloaded