std::istream_iterator<T,CharT,Traits,Distance>::operator++, operator++(int)
 istream_iterator& operator++();  |  (1) | |
 istream_iterator operator++(int);  |  (2) | 
Reads a value from the underlying stream and stores it into the iterator object. If the read fails, the iterator becomes the end-of-stream iterator.
The behavior is undefined if the iterator is end-of-stream iterator.
Parameters
(none).
Return value
1) 
 *this.
2) An 
 istream_iterator that holds an unchanged value.Exceptions
(none).
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