tmp_buffer.h

#include <iostream>
#include <sstream>
#include <string>
#include <cstring>

#ifndef TMP_BUFFER_H
#define TMP_BUFFER_H

#ifndef EOF
#define EOF  -1
#endif

#ifndef READ
#define READ std::ios::in
#endif

class Tmp_streambuf : public std::streambuf {
    private:
    bool _opened;
    int _mode;
    char c;
    std::istream *_src;
    std::istream **_dest;
    std::stringstream _buffer;
    public:
    bool buffered, reread;
    Tmp_streambuf();
    Tmp_streambuf * open(std::istream **dest, std::istream *src);
    virtual int underflow();
    bool is_open(void);
    Tmp_streambuf * close(void);
    ~Tmp_streambuf();
    void clear_read();
};

/***/
class Tmp_buffer : public std::istream {

    private:

    Tmp_streambuf _spool;

    protected:
    public:
    
    Tmp_buffer (void) : std::istream(NULL){};
    ~Tmp_buffer (void){};

    Tmp_buffer (std::istream **dest, std::istream *src);
    void open(std::istream **dest, std::istream *src);
    void buffer_on (void) {_spool.buffered=true;};
    void buffer_off (void) {_spool.buffered=false;};
    void reread_on (void) {_spool.reread=true;};
    void reread_off (void) {_spool.reread=false;};
    void clear_read();
};
#endif