FLCBYTBF.hpp

Go to the documentation of this file.

#ifndef FLCBYT_BUFFER_HPP
#define FLCBYT_BUFFER_HPP
 
#include <streambuf>
#include <vector>
#include <cstdlib>
#include <iostream>
 
#if defined(__BORLANDC__)
#include <stdio.h>
#else
#include <cstdio>
#endif
 
#include "FLMDEF.h"
 
/**********************************************************************/
#define FCB_READ_FILE               FLC_READ_FILE
#define FCB_READ_FORMAT             FLC_READ_FORMAT
#define FCB_WRITE_FILE              FLC_WRITE_FILE
#define FCB_WRITE_FORMAT            FLC_WRITE_FORMAT
#define FCB_INPUT_FILE              FLC_INPUT_FILE
#define FCB_OUTPUT_FILE             FLC_OUTPUT_FILE
#define FCB_INFO                    FLC_INFO
#define FCB_STATE                   FLC_STATE
/**********************************************************************/

class flcbyt_buffer: public std::streambuf {
   public:
      explicit flcbyt_buffer(const char* filstr, const char* fmtstr, char** state=NULL, size_t buff_sz=4096, size_t put_back=1);
      ~flcbyt_buffer(void);
      std::string close(const int statfmt=FLMOUT_FORMAT_LST);
      int error(void);
      std::string errormsg(void);
      static std::string errortrace(void);
      static std::string version(void);
      static std::string about(void);
      static std::string license(void);
      static std::string help(const int what, const int depth, const char* path);
      static std::string syntax(const int what, const int depth, const char* path);
 
   private:
      // overrides base class functions underflow(), overflow(), sync()
      int_type underflow(void);
      int_type overflow(int_type ch);
      int sync(void);
      //xsputn() // TODO: overwrite, else each several byte is copied
 
      // copy constructor and assignment not implemented;
      flcbyt_buffer(const flcbyt_buffer &);
      // copying not allowed
      flcbyt_buffer &operator=(const flcbyt_buffer &);
 
   private:
      const char* filstr_;
      const char* fmtstr_;
      const std::size_t put_back_;
      std::vector<char> buffer_;
      void* handle;
};
 
/**********************************************************************/

#endif /*FLCBYT_BUFFER_HPP*/