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dsBCD.h

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/*
 * $Id: dsBCD.h,v 1.5 2004/07/21 08:41:46 dsamersoff Exp $
 */
#ifndef dsBCD_h
#define dsBCD_h

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include <string.h>
#include <iostream>

#include <dsSmartException.h>

DECLARE_EXCEPTION(dsBCD);

class dsBCD
{
    unsigned char _bcd[256];
    size_t        _bcd_size;

public:

/* Constructors */

  dsBCD(); 

  dsBCD(dsBCD& other);

    dsBCD(long xdec); 

  dsBCD(const char *xdec, size_t size);



/*    Make BCD from decimal     */

    void makeBCD(const char *xdec, size_t xsize);

    void makeBCD(unsigned long xdec);



/*     Read pre-made BCD    */

    void readBCD(const char *ptr, size_t size);

    void readBCD(std::istream& is, size_t bytes = (size_t) -1);



/*    Output constructed BCD    */

    void writeBCD(std::ostream& out);



/* Convert BCD to another representation */

    long toLong();

    void toAscii(std::ostream& out);


/*    Accessors       */

    unsigned char *bcd() { return _bcd; }

    int  size(){ return _bcd_size; }


};

inline void dsToBCD(long xdec, std::ostream& out)
{
    dsBCD b(xdec);
    b.writeBCD(out);
}

inline void dsToBCD(const char *xdec, std::ostream& out)
{
    dsBCD b(xdec, strlen(xdec) );
    b.writeBCD(out);
}

inline long dsFromBCD(const char *ptr, int bytes)
{
    dsBCD b;
    b.readBCD(ptr, bytes);
    return b.toLong();
}

inline long dsFromBCD(std::istream& is, int bytes)
{
    dsBCD b;
    b.readBCD(is, bytes);
    return b.toLong();
}


#endif

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