write a function using refrence variable as argument to swap the value of a pair of integers.

/* write a function using refrence variable as argument to swap
the value of a pair of integers. */


#include
#include

class swaping
{
int a;
public :
void getdata(void);
friend void swap(swaping &,swaping &);
void display(void);
};

void swaping :: getdata(void)
{
cout<<"\n\nEnter any Integer :-";
cin>>a;
}

void swap(swaping &o1,swaping &o2)
{
int temp;
temp = o1.a;
o1.a = o2.a;
o2.a = temp;
}

void swaping :: display(void)
{
cout<}

void main()
{
clrscr();
swaping o1,o2;

cout<<"Before Swaping\n";
o1.getdata();
o2.getdata();

swap(o1,o2);

cout<<"\n\nAfter Swaping\n";
o1.display();
o2.display();

getch();
}