Write a C++ Program for Unary Operator ++

//Unary Operator ++
#include
#include

class counter
{
int count;
public:
counter(){count=0;}
counter(int a)
{count=a;}
void operator ++() //for prefix
{count++;}
counter operator ++(int) //for eg:- c1 = c2++
{ //and postfix expression
count++;
counter temp;
temp.count=count;
return temp;
}
void getdata(void)
{
cout<<"\n\nEnter Value for Count :-"; cin>>count;
}
void display(void)
{
cout<<"\nValue of count is "<<
}
};

void main()
{
clrscr();
counter o1(9),o2,o3;
o1++;
o1.display();

o2.getdata();
o2++;
++o2;
o2.display();

o3=o2++;
o3.display();
getch();
}