Usage of operator overloading in structures in C++

operatorOverloadStruct.cpp

#include <bits/stdc++.h>
using namespace std;


struct Complex { 
    
    int real, imag; 
    Complex(int r = 0, int i =0)  {real = r;   imag = i;} 
    
    Complex operator + (Complex const &obj) { 
      
      // Note that the operator on left is passed as a refrence and can be modified directly by modifying *this.
      
         Complex res; 
         res.real = real + obj.real; 
         res.imag = imag + obj.imag; 
         return res; 
    } 
    void print() { cout << real << " + i" << imag << endl; } 
}; 
  
int main() 
{ 
    Complex c1(10, 5), c2(2, 4); 
    Complex c3 = c1 + c2;
    c3.print(); 
    c1.print();
    c2.print();
}