istream_iterator::operator++
Either extracts an incremented object from the input stream or copies the object before incrementing it and returns the copy.
istream_iterator<Type, CharType, Traits, Distance>& operator++( );
istream_iterator<Type, CharType, Traits, Distance> operator++( int );
Return Value
The first member operator returns a reference to the incremented object of type Type extracted from the input stream and the second member function returns a copy of the object.
Example
// istream_iterator_operator_incr.cpp
// compile with: /EHsc
#include <iterator>
#include <vector>
#include <algorithm>
#include <iostream>
int main( )
{
using namespace std;
cout << "Enter integers separated by spaces & then\n"
<< " a character ( try example: '2 4 6 8 a' ): ";
// istream_iterator from stream cin
istream_iterator<int> intRead ( cin );
// End-of-stream iterator
istream_iterator<int> EOFintRead;
while ( intRead != EOFintRead )
{
cout << "Reading: " << *intRead << endl;
++intRead;
}
cout << endl;
}
2 4 6 8 a
2 4 6 8 a Enter integers separated by spaces & then a character ( try example: '2 4 6 8 a' ): 2 4 6 8 a Reading: 2 Reading: 4 Reading: 6 Reading: 8
Requirements
Header: <iterator>
Namespace: std