// Fig. 11.17: Hugeint.h 
// HugeInt class definition.
#ifndef HUGEINT_H
#define HUGEINT_H

#include <iostream>
#include <string>
using namespace std;

class HugeInt
{
   friend ostream &operator<<( ostream &, const HugeInt & );
public:
   static const int digits = 30; // maximum digits in a HugeInt

   HugeInt( long = 0 ); // conversion/default constructor
   HugeInt( const string & ); // conversion constructor

   // addition operator; HugeInt + HugeInt
   HugeInt operator+( const HugeInt & ) const;

   // addition operator; HugeInt + int
   HugeInt operator+( int ) const;            

   // addition operator; 
   // HugeInt + string that represents large integer value
   HugeInt operator+( const string & ) const;    
private:
   short integer[ digits ];
}; // end class HugetInt

#endif


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