CPP program to overload binary operator using non member function

In this article we will learn to implement a CPP program to overload binary operator using non member function. A C++ program is provided below to overload binary operator.

Program is as follows:

#include <iostream>
using namespace std;
class Complex
{
	private:
		float real;
		float imag;
	public:
		Complex(){}
		Complex(float r, float i)
		{
			real = r;
			imag = i;
		}
		void display()
		{
			cout<<real<<"+i"<<imag;
		}
		friend Complex operator +(Complex &, Complex &);
};
Complex operator +(Complex &c1, Complex &c2)
{
	Complex temp;
	temp.real = c1.real + c2.real;
	temp.imag = c1.imag + c2.imag;
	return temp;
}
int main()
{
	Complex c1(3, 4);
	Complex c2(4, 6);
	Complex c3 = c1+c2;
	c3.display();
	return 0;
}

Output for the above program is as follows:

7+i10

Suryateja Pericherla

Suryateja Pericherla, at present is a Research Scholar (full-time Ph.D.) in the Dept. of Computer Science & Systems Engineering at Andhra University, Visakhapatnam. Previously worked as an Associate Professor in the Dept. of CSE at Vishnu Institute of Technology, India.

He has 11+ years of teaching experience and is an individual researcher whose research interests are Cloud Computing, Internet of Things, Computer Security, Network Security and Blockchain.

He is a member of professional societies like IEEE, ACM, CSI and ISCA. He published several research papers which are indexed by SCIE, WoS, Scopus, Springer and others.