// 181/C++examples/huge/HugeInt.h  =bds mods to 
// Fig. 8.8: hugeint1.h 
// Definition of the HugeInt class
#ifndef HUGEINT_H
#define HUGEINT_H

#include <iostream.h>

class HugeInt {
   friend ostream &operator<<( ostream &, HugeInt & );

   // new 11/98 -bds
   friend HugeInt operator+( int, HugeInt & );          // int + HugeInt
   friend HugeInt operator-( int, HugeInt & );          // int - HugeInt
   friend HugeInt abs( HugeInt & ); // absolute value

public:
   HugeInt();       // default constructor
   HugeInt( HugeInt & );       // Copy constructor
   HugeInt( long );       // conversion constructor
   HugeInt( const char * );           // conversion constructor
   HugeInt operator+( HugeInt & );    // add another HugeInt
   HugeInt operator+( int );          // add an int
   HugeInt operator+( const char * ); // add an int in a char*

   // new 11/98 -bds
   HugeInt operator-( HugeInt & );    // subtract another HugeInt
   HugeInt operator-( int );          // subtract an int
   HugeInt operator-( const char * ); // subtract an int in a char*

private:
   // parameters:  Change SIZE and/or BASE to redefine "Huge".
   static const int SIZE;  // max number of digits
   static const int BASE;  // base of the arithmetic

   // These are derived from SIZE and BASE
   static const int MAX_INDEX;
   static const int HALF_BASE;
   static const int MAX_DIGIT;

   short* integer;

   // new 11/98 -bds
   void negate();// change sign
   void complement();// subtract from 10^SIZE
   void add1();// ++(*this) 

   void debug( char* msg ); // debug prints msg followed by object data to cerr.
};

#endif