Unary Operator Overloading using Member Function

#include<iostream.h>

#include<conio.h>

class unary

{

int t;

public:

void assign(int a){t=a;}

void operator++()

{

cout<<"\n Pre Increment"<<endl;

++t;

}

void operator++(int d)

{

cout<<"\n Post Increment"<<endl;

t++;

}

void operator--(int d)

{

cout<<"\n Post Decrement"<<endl;

t--;

}

void operator--()

{

cout<<"\n Pre Decrement"<<endl;

--t;

}

void show()

{

cout<<t<<endl;

}

};

void main()

{

cout<<"\t\tUnary Operator Overloading Using Member Function";

clrscr();

unary u;

u.assign(10);

++u;

u.show();

u++;

u.show();

--u;

u.show();

u--;

u.show();

getch();

}