//: C12:Integer.h
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
// Non-member overloaded operators

#ifndef INTEGER_H
#define INTEGER_H
#include <iostream>

/* Non-member functions: */
class Integer
{

long i;
public:
Integer(long ll = 0) : i(ll) {}

/* Operators that create new, modified value: */

/* Qui di seguito, sono dichiarati tutti gli operatori relativi la classe "Integer".*/

friend const Integer operator+(const Integer& left, const Integer& right);
friend const Integer operator-(const Integer& left, const Integer& right);
friend const Integer operator*(const Integer& left, const Integer& right);
friend const Integer operator/(const Integer& left, const Integer& right);
friend const Integer operator%(const Integer& left, const Integer& right);
friend const Integer operator^(const Integer& left, const Integer& right);
friend const Integer operator&(const Integer& left, const Integer& right);
friend const Integer operator|(const Integer& left, const Integer& right);
friend const Integer operator<<(const Integer& left, const Integer& right);
friend const Integer operator>>(const Integer& left, const Integer& right);

/* Assignments modify & return lvalue: */
friend Integer& operator+=(Integer& left, const Integer& right);
friend Integer& operator-=(Integer& left, const Integer& right);
friend Integer& operator*=(Integer& left, const Integer& right);
friend Integer& operator/=(Integer& left, const Integer& right);
friend Integer& operator%=(Integer& left, const Integer& right);
friend Integer& operator^=(Integer& left, const Integer& right);
friend Integer& operator&=(Integer& left, const Integer& right);
friend Integer& operator|=(Integer& left, const Integer& right);
friend Integer& operator>>=(Integer& left, const Integer& right);
friend Integer& operator<<=(Integer& left, const Integer& right);

/* Conditional operators return true/false: */
friend int operator==(const Integer& left, const Integer& right);
friend int operator!=(const Integer& left, const Integer& right);
friend int operator<(const Integer& left, const Integer& right);
friend int operator>(const Integer& left, const Integer& right);
friend int operator<=(const Integer& left, const Integer& right);
friend int operator>=(const Integer& left, const Integer& right);
friend int operator&&(const Integer& left, const Integer& right);
friend int operator||(const Integer& left, const Integer& right);

/* Write the contents to an ostream: */
void print(std::ostream& os) const { os << i; }

};

#endif // INTEGER_H ///:~