Write a program that will demonstrate copy constructor function

Write a program that will demonstrate copy constructor function. The program that uses the following properties – class names- add; two integer type private member variables- x,y; two parameterized constructor function add(int m, int n), add(add &); one public member function display(). Constructor function add(int m, int n) get the value from parameterized object s1(20,50) and assigns the values for x,y; display() member function do the addition for x, y and displays the result as output. Also object s1 copy its value to object s2 and s2 also displays its value as output.

#include<iostream>

using namespace std;

class add

{

    int x,y;

    public:

        add(int m,int n);

        add(add &);

        void display();

};

add::add(int m,int n)

{

    x=m;

    y=n;

}

add::add(add &p)

{

    x=p.x;

    y=p.y;

}

void add::display()

{

    cout<<"Addition value is :"<<x+y<<endl;

}

int main()

{

    add s1(20,50);

    s1.display();

    add s2(s1);

    s2.display();

    return 0;

}