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/* 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 <iterator>
using namespace std;
int main()
// input stream buffer iterator for cin
istreambuf_iterator<char> inpos(cin);
// end-of-stream iterator
istreambuf_iterator<char> endpos;
// output stream buffer iterator for cout
ostreambuf_iterator<char> outpos(cout);
// while input iterator is valid
while (inpos != endpos) {
*outpos = *inpos; // assign its value to the output iterator