/* The following code example is taken from the book * "The C++ Standard Library - A Tutorial and Reference" * by Nicolai M. Josuttis, Addison-Wesley, 1999 * * (C) Copyright Nicolai M. Josuttis 1999. * Permission to copy, use, modify, sell and distribute this software * is granted provided this copyright notice appears in all copies. * This software is provided "as is" without express or implied * warranty, and with no claim as to its suitability for any purpose. */#include <iostream>#include "inbuf1.hpp"int main(){    inbuf ib;                // create special stream buffer    std::istream in(&ib);    // initialize input stream with that buffer    char c;    for (int i=1; i<=20; i++) {        // read next character (out of the buffer)        in.get(c);        // print that character (and flush)        std::cout << c << std::flush;        // after eight characters, put two characters back into the stream        if (i == 8) {            in.unget();            in.unget();        }    }    std::cout << std::endl;}