Program to Perform Complex Operations using Overloading.cpp

/*  C++ Program to Perform Complex Operations using Overloading  */

#include <iostream>
using namespace std;

class Complex
{
     private:
        double a;
        double b;

    public:
        Complex(double=1.0,double=1.0); // Constructor;
        void set(double,double);
        void print();
        Complex operator+(Complex);
        Complex operator++();
        Complex operator++(int);

};

Complex::Complex(double r, double i)
{
   set(r,i);
}


void Complex::print()
{
    if (b<0)
    cout <<"\n"<< a << "" << b <<"i"<<endl;
    else
    cout <<"\n"<< a << "+" << b <<"i"<<endl;
}

void Complex::set(double r, double i)
{
    a = r;
    b = i;
}
// Prefix Exm.
Complex Complex::operator+(Complex R)
{
    Complex tmp;
    tmp.a = a + R.a;
    tmp.b = b + R.b;
    return tmp;
}
// Prefix Exm.
Complex Complex::operator++()
{
    a++;
    b++;
    return *this;
}

// Postfix Exm.
Complex Complex::operator++(int x)
{
    a++;
    b++;
    return *this;
}
int main()
{
    Complex A(3,4), B(5,-6);
    A.print();
    B.print();
    Complex C;
    C= A+B;
    C.print();
    ++A;
    cout <<endl;
    A.print();
    C = ++A;
    C.print();

    A++;
    A.print();
    //system("pause");
    return 0;
}