xfile.h

/*
 * File:        xfile.h
 * Purpose:     General Purpose File Class 
 */
/* === C R E D I T S  &  D I S C L A I M E R S ==============
 * Permission is given by the author to freely redistribute and include
 * this code in any program as long as this credit is given where due.
 *
 * CxFile (c)  11/May/2002 <ing.davide.pizzolato@libero.it>
 * CxFile version 1.00 11/May/2002
 * See the file history.htm for the complete bugfix and news report.
 *
 * COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
 * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
 * THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
 * CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
 * THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
 * SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
 * PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
 * THIS DISCLAIMER.
 *
 * Use at your own risk!
 * ==========================================================
 */
#if !defined(__xfile_h)
#define __xfile_h

#include <stdlib.h>
#include <stdio.h>

class CxFile
{
public:
        CxFile(long type = 0);
        CxFile(FILE* pFile);
        //CxFile(BYTE* pBuffer, DWORD size);
        ~CxFile();
        void*   Open(const char *filename, const char *mode);
        long    Close();
        size_t  Read(void *buffer, size_t size, size_t count);
        size_t  Write(const void *buffer, size_t size, size_t count);
        long    Seek(long offset, int origin);
        long    Tell();
        long    Size();
        long    Flush();
        long    Eof();
        long    Error();
        long    PutC(unsigned char c);
        long    GetC();
        long    GetPos(fpos_t *pos);
        void*   GetStream() const {return m_stream;}
        //void* Alloc(DWORD nBytes);
        void    Free();
        void    Transfer(CxFile &from);

protected:
        void    *m_stream;      //file or memory pointer or whatever
        //FILE  *m_stream;      //file or memory pointer or whatever
        long    m_StorageType; //type (0=file, 1=memory, ...)
        long  m_Position;       //current position
        long    m_Size;         //file size
        long    m_Edge;         //buffer size
        long    m_DontCloseOnExit;
};



#endif //__xfile_h

---