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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()
{
// create istream iterator that reads integers from cin
istream_iterator<int> intReader(cin);
// create end-of-stream iterator
istream_iterator<int> intReaderEOF;
/* while able to read tokens with istream iterator
* - write them twice
*/
while (intReader != intReaderEOF) {
cout << "once: " << *intReader << endl;
cout << "once again: " << *intReader << endl;
++intReader;
}
}
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