map and BYTE[]

From: Vince (vsix_at_caramail.com)
Date: 01/17/05 

Date: Mon, 17 Jan 2005 23:37:58 +0100

Hi,

I am starting to play with with C++ and I have some questions.
I need to parse a XML file that describes a smart card file structure
and to initialize my data structure.
First I chose this structure :

A CCardObject has files (index by SFID) and each file has
records(indexed by RecNo) and each record can be splitted into
data(index by string).

class CDataIndex
{
public :
        int m_nSFID; // FileID
        int m_nRecNo; // RecNo
        int m_nOffset; // Offset
        int m_nSize; // DataLen

   CDataIndex() { }
   CDataIndex(int nSFID, int nRecNo, int nOffset, int size) {
          m_nSFID = nSFID;
          m_nRecNo = nRecNo;
          m_nOffset = nOffset;
          m_nSize = size;
   }

   CDataIndex(const CDataIndex& ob)
   {
          m_nSFID = ob.m_nSFID;
          m_nRecNo = ob.m_nRecNo;
          m_nOffset = ob.m_nOffset;
          m_nSize = ob.m_nSize;
   }

   void operator = (const CDataIndex& ob)
     {
                m_nSFID = ob.m_nSFID;
                m_nRecNo = ob.m_nRecNo;
                m_nOffset = ob.m_nOffset;
                m_nSize = ob.m_nSize;
        }
};
class CCardRecord
{
public :
        int m_nRecNo;
        int m_nRecSize;
        map<int, BYTE[29]> m_RecData;

        CCardRecord() {}
        CCardRecord( int nRecNo ) { m_nRecNo = nRecNo;}

        int GetRecNo() { return m_nRecNo; }
        int GetRecSize() { return m_nRecSize; }
        int GetData(int nOffset, int nSize);
};

class CCardFile
{
public :
        int m_nSFID;
        map<int, CCardRecord> m_records;

        CCardFile() {}
        CCardFile( int nSFID ) { m_nSFID = nSFID;}

};

class CCardObj
{
public:
        CCardObj();
        virtual ~CCardObj();
        BOOL LoadCardMapping();
        BOOL ReadMappingFile(CXMLReader &xml);
        void XMLCardFile(CXMLReader &xml);
        void XMLCardRecord( CXMLReader &xml );
        void XMLCardData( CXMLReader &xml );

        CString m_csTag;
        int m_nSFID;
        int m_nRecNo;
        int m_nRecSize;
        int m_nDataOffset;
        int m_nDataType;
        int m_nDataSize;
        CString m_csName;
        BYTE m_Data[29];

                // CardReader Object - LOW LEVEL API
        CCardReader* m_pCardReader;
        
        // Associate stringwith SFID, RecNo, Offset and Size
        map<CString, CDataIndex> m_dataIndex;

        // File collection index by Short File Id (SFID)
        map<int, CCardFile> m_FileIndex;
};

When I parse the XML file and I find the <CardRecord> tag I get its
attributes and I would like to add a new array of byte.
How can I do that ?

void CCardObj::XMLCardRecord( CXMLReader &xml )
{
        xml.getAttribute( "index", m_nRecNo ); // Get record No
        xml.getAttribute( "size", m_nRecSize );// Get record size
        
        m_FileIndex[ m_nSFID ].m_records[ m_nRecNo ] = ????

        xml.intoTag();
        while ( xml.nextTag( m_csTag ) ){
                if (m_csTag == "CardData"){
                        XMLCardData( xml );
                }
        }
        xml.outofTag();
}

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