Binary Operator using Friend Function.[C++]

#include <iostream>
using namespace std;
class Complex
{
    private:
        int real;
        int img;
    public:
       Complex ()
        {
            real = 0;
            img = 0;
        }
        Complex (int r, int i)
        {
            real = r;
            img = i;
        }
        void Display ()
        {
            cout << real << "+i" << img;
        }
        friend Complex operator + (Complex c1, Complex c2);
};

Complex operator + (Complex c1, Complex c2)
{
    Complex temp;
    temp.real = c1.real + c2.real;
    temp.img = c1.img + c2.img;
    return temp;
}

int main ()
{
    Complex C1(5, 3), C2(10, 5), C3;
    C1.Display();
    cout << " + ";
    C2.Display();
    cout << " = ";
    C3 = C1 + C2;  //(or)  C3=operator+(C1,C2);
    C3.Display();
}

     

           

Note: Need to be arranged in compiler after copied

   

 OutPut:

5+i3 + 10+i5 = 15+i8