operator+ (<iterator>)

Adds an offset to an iterator and returns a reverse_iterator addressing the inserted element at the new offset position.

template<class RandomIterator> 
   reverse_iterator<RandomIterator> operator+( 
      typename reverse_iterator<Iterator>::difference_type _Off, 
      const reverse_iterator<RandomIterator>& _Right 
   );

Parameters

• _Off
  The number of positions the const reverse_iterator is to be offset.

• _Right
  The const reverse_iterator that is to be offset.

Return Value

The sum _Right + _Off.

Example

// iterator_op_insert.cpp
// compile with: /EHsc
#include <iterator>
#include <vector>
#include <iostream>

int main( )
{
   using namespace std;
   int i;

   vector<int> vec;
   for (i = 0 ; i < 6 ; ++i )  {
      vec.push_back ( 2 * i );
      }
   
   vector <int>::iterator vIter;

   cout << "The initial vector vec is: ( ";
   for ( vIter = vec.begin( ) ; vIter != vec.end( ); vIter+)
      cout << *vIter << " ";
   cout << ")." << endl;

   vector <int>::reverse_iterator rVPOS1 = vec.rbegin ( );
   
   cout << "The iterator rVPOS1 initially points to "
           << "the first element\n in the reversed sequence: "
           << *rVPOS1 << "." << endl;

   vector<int>::difference_type diff = 4;
   rVPOS1 = diff +rVPOS1;

   cout << "The iterator rVPOS1 now points to the fifth "
           << "element\n in the reversed sequence: "
           << *rVPOS1 << "." << endl;
}

The initial vector vec is: ( 0 2 4 6 8 10 ). The iterator rVPOS1 initially points to the first element in the reversed sequence: 10. The iterator rVPOS1 now points to the fifth element in the reversed sequence: 2.

Requirements

Header: <iterator>

Namespace: std

See Also

Reference

Standard Template Library

Other Resources

<iterator> Members