hugeint1.h

《c＋＋大学教程》源码

// Fig. 8.18: hugeint1.h 
// HugeInt class definition.
#ifndef HUGEINT1_H
#define HUGEINT1_H

#include <iostream>

using std::ostream;

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

public:
   HugeInt( long = 0 );      // conversion/default constructor
   HugeInt( const char * );  // conversion constructor

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

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

   // addition operator; 
   // HugeInt + string that represents large integer value
   HugeInt operator+( const char * );    

private:
   short integer[ 30 ];

}; // end class HugeInt

#endif

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