C++ Tutorial/File Stream/istreambuf iterator

Input stream buffer iterator for cin, end-of-stream iterator,output stream buffer iterator for cout

<source lang="cpp">/* 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.
*/

1. include <iostream>
2. 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
       ++inpos;
       ++outpos;
   }

}</source>

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