clshexcoder.h

set of classes for coding hex to bin and bin to hex

#ifndef CLSHEXCODER_H
#define CLSHEXCODER_H

#include <string>

class clsHexCoder
{
    public:
        enum eRetVal    { NoError , ErrBadInputData , ErrNoBinArray , ErrBinarraySmall };

        clsHexCoder();
        ~clsHexCoder();

        int             HexToBin        ( const char* pHexChars );
        int             HexToBin        ( const std::string& rHexString );
        int             BinToHex        ( const void* pBin , unsigned long lArraySize );
        void            ReserveArray    ( unsigned long lArraySize );

        inline  unsigned long   ArraySize       ( ) const { return m_lArraySize; }
        inline  unsigned long   BinArrayLen     ( ) const { return m_lArrayUsed; }
        inline  unsigned char*  BinArray        ( ) { return m_pBinArray; }
        inline  std::string     HexString       ( ) const { return m_szMyString; }
        inline  const char*     HexChars        ( ) { return m_szMyString.c_str(); }
        inline  unsigned long   HexStringLen    ( ) const { return m_szMyString.size(); }

    protected:
        std::string     m_szMyString;
        unsigned long   m_lArraySize;
        unsigned long   m_lArrayUsed;
        unsigned char*  m_pBinArray;
};

#endif