#include <iostream.h>
class box
{
private:
int length;
public:
box(): length ( 0 ) { }
friend int printlength(box); // friend function
};
int printlength (box b)
{
b.length += 10;
return b.length;
}
int main()
{
clrscr();
box b;
cout<< “Length of box:” <<printlength(b)<<”\n”;
getch();
return 0 ;
}
class box
{
private:
int length;
public:
box(): length ( 0 ) { }
friend int printlength(box); // friend function
};
int printlength (box b)
{
b.length += 10;
return b.length;
}
int main()
{
clrscr();
box b;
cout<< “Length of box:” <<printlength(b)<<”\n”;
getch();
return 0 ;
}
