#ifndef NUMBER_H
#define NUMBER_H

#include <bu/string.h>
#include "packedintarray.h"

class Number
{
public:
    Number( int iOrd=0 );
    Number( const Bu::String &sData, int iOrd=0 );
    virtual ~Number();

    Number &operator=( const Bu::String &sNum );
    Number &operator=( const Number &rhs );
    
    Number operator+( const Number &rhs ) const;
    Number operator-( const Number &rhs ) const;
    Number operator*( const Number &rhs ) const;
    Number operator/( const Number &rhs ) const;
    Number operator%( const Number &rhs ) const;
    Number operator-() const;

    bool operator==( const Number &rhs ) const;
    bool operator!=( const Number &rhs ) const;
    bool operator>( const Number &rhs ) const;
    bool operator<( const Number &rhs ) const;
    bool operator>=( const Number &rhs ) const;
    bool operator<=( const Number &rhs ) const;

    void set( const Bu::String &sNum );
    void set( const Number &sNum );
    
    void divide( const Number &rhs, Number &q, Number &r ) const;

    operator Bu::String() const
    {
        return aInt.toString();
    }

    Bu::String toString() const;

    int digit( int iOrder ) const;

private:
    Number add( const Number &rhs, bool bSub ) const;

private:
    int iOrd;
    bool bPositive;
    PackedIntArray aInt;
};

#endif