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

FakePre-992c09c8c28447ec84cf68aab5ab6c00-6718e6ad0fa649e6a225aa6bb234e643

Requirements

Header: <iterator>

Namespace: std

See Also

Reference

istream_iterator Class

Standard Template Library

Other Resources

istream_iterator Members