#ifndef PRIORITY_H
#define PRIORITY_H

#include <iostream>
#include <string>

using namespace std ;

/*
   Example Usages of Priority class:
	Priority p0 ;
	Priority * p1 = new Priority(Priority::LOW) ;
	Priority p2 = Priority::MEDIUM ;
	Priority p3 = Priority::HIGH ;
	Priority p4 = p3 ;
	if(p2 == p3) { } ;
	if(p2 < p3) { } ;
	if(p2 > p3) { } ;
	if(p2 <= p3) { } ;
	if(p2 >= p3) { } ;
	if(p2 != p3) { } ;
	if(p2 == Priority::LOW) { } ;
	if(p2 < Priority::LOW) { } ;
	if(p2 > Priority::MEDIUM) { } ;
	if(p2 <= Priority::MEDIUM) { } ;
	if(p2 >= Priority::HIGH) { } ;
	if(p2 != Priority::HIGH) { } ;
	cout << p1 << p2 << p3 << endl ;

 */

class Priority{
	friend ostream & operator<<(ostream & , const Priority & );
	friend bool operator==(const Priority&, const int );
	friend bool operator!=(const Priority&, const int ) ;		
	friend bool operator<(const Priority&, const int );
	friend bool operator<=(const Priority&, const int);		
	friend bool operator>(const Priority&, const int );		
	friend bool operator>=(const Priority&, const int );		

	private:
		int p ;
	public:
		static const int HIGH = 2 ;
		static const int MEDIUM = 1 ;
		static const int LOW = 0 ;
		Priority() ;
		Priority(const int );
		Priority(const Priority & ) ;
		Priority & operator=(const Priority & );
		bool operator==(const Priority & ) const;
		bool operator!=(const Priority & ) const;
		bool operator<(const Priority & ) const;
		bool operator<=(const Priority & )  const;
		bool operator>(const Priority & ) const;
		bool operator>=(const Priority & ) const;
};

#endif