Program to illustrate the binary operator(+) overloading without creating a new object

 #include<iostream.h>
 #include<conio.h>



 //-----------------------------  distance  ------------------------------//


 class distance
    {
       private:
        int feet;
        float inches;

       public:
        distance()  { feet=0,inches=0; }
        distance(int ft,float inch)  { feet=ft,inches=inch; }
        distance operator+(distance);
        void get_distance();
        void show_distance() { cout<<feet<<\"f- \"<<inches<<\"\'\"<<endl; }
     };



 //---------------------------  get_distance( )  -------------------------//


 void distance::get_distance()
    {
       cout<<\"\\t Enter the feet = \";
       cin>>feet;

       cout<<\"\\t Enter the inches = \";
       cin>>inches;
    }


 //-------------------------  operator+(distance)  -----------------------//


 distance distance::operator+(distance d2)
    {
       int f=d2.feet+feet;

       float i=d2.inches+inches;

       if(i>=12.0)
      {
         i-=12.0;
         f++;
      }

       return distance(f,i);
    }



 //-----------------------------  Main( )  -------------------------------//



 main( )
    {
       clrscr();

       distance d_1;
       distance d_2(11, 6.25);
       distance d_3;
       distance d_4;

       cout<<\"\\n Value of d_1 :\"<<endl;
       d_1.get_distance();

       d_3=d_1+d_2;
       d_4=d_1+d_2+d_3;

       cout<<\"\\n Value of d_1 = \";
       d_1.show_distance();

       cout<<\"\\n Value of d_2 = \";
       d_2.show_distance();

       cout<<\"\\n Value of d_3 = \";
       d_3.show_distance();

       cout<<\"\\n Value of d_4 = \";
       d_4.show_distance();

       getch();
       return 0;
    }