The following program illustrates how to use Objects as Function Arguments

#include<iostream.h>

#include<conio.h>

class distance

          {

          private :

                   int mts ;

                   int cms;

          public :

                   void init (int a, int b)

                             {

                             mts=a; cms = b;

                             }

                   void get();

                   void put();

                   void add(distance, distance) ;

          } ;

void distance::get()

{

                   cout<<"enter two distances in meter:";

                   cin>>mts>>cms;

                   }

void distance :: put ( )

          {

          cout<<"\n"<<mts<<" Meters "<<cms<<"centimeters";

          }

void distance :: add (distance dl, distance d2)

          {

          mts = dl.mts+d2.mts;

          cms = dl.cms+d2.cms;

          if (cms>100)

                             {

                             mts+=cms/100;

                             cms%=100;

                             }

}

void main ()

{

clrscr();

distance ob1,ob2,ob3;

ob1.get();

ob2.init(5,85);

ob3.add(ob1, ob2);

cout<<"The two distances are..";

ob1.put ( ) ;

cout<<"\nAnd";

ob2.put () ;

cout<<"\nSum is ";

ob3. put () ;

getch();

}

Out put

          Enter a distance in meters and cms : 7                 65

          The two distances are:

          7 Meters 65 Centimeters

          And

          5 Meters 85 Centimeters

          Sum is

13 Meters 50 Centimeters.