57 	};

    57 	};

    58 

    58 

    59 	/** type used as class member */

    59 	/** type used as class member */

    60 	union {

    60 	union {

    61 		bitem_t    *m_pData;    ///< ptr to the first byte of data

    61 		bitem_t    *m_pData;    ///< ptr to the first byte of data

    62 		wchar_t    *m_pwData;   ///< ptr to the first byte of data

    63 		wchar_t    *m_pwData;   ///< ptr to the first byte of data

    63 		CHdr       *m_pHdr_1;   ///< ptr just after the CHdr holding m_size and m_max_size

    65 		CHdr       *m_pHdr_1;   ///< ptr just after the CHdr holding m_size and m_max_size

    64 	} ptr_u;

    66 	} ptr_u;

    65 

    67 

    66 public:

    68 public:

    67 	static const bsize_t Ttail_reserve = 4; ///< four extra bytes will be always allocated and zeroed at the end

    69 	static const bsize_t Ttail_reserve = 4; ///< four extra bytes will be always allocated and zeroed at the end