"+" Operator Overloading

Program to illustrate how to overload a "+" operator.

As we know that "+" operator or arithmetic operator can work only with predefined data types but here we use this arithmetic operator i.e. "+" operator for user-defined data types.

#include<iostream>

#include<string.h>

using namespace std;

class test

{

    char str[100];

    public:

    void getstr()

    {

    cout<<"Enter the string :"<<ends;

    cin>>str;

    }

    void show()

    {

        cout<<"String = "<<str;

    }

    test operator+(test s1);

};

int main()

{

    system("cls");

    test t1,t2,t3;

    t1.getstr();

    t2.getstr();

    t3=t1+t2;

    t3.show();

    return 0;

}

test test::operator+(test s1)

{

    test s2;

    strcpy(s2.str,str);

    strcat(s2.str," ");

    strcat(s2.str,s1.str);

    return s2;

}

Output :

Enter the string : suman

Enter the string : kumar

String = suman kumar