[ 2014-11-11, Jonathan provides improved wording ]

In Urbana LWG decided to explicitly say the value is constructed from an rvalue.

This wording is relative to N3337.

1. Add a new signature to the synopsis in [storage.iterator] p1:

   namespace std {
     template <class OutputIterator, class T>
     class raw_storage_iterator
       : public iterator<output_iterator_tag,void,void,void,void> {
     public:
       explicit raw_storage_iterator(OutputIterator x);
   
       raw_storage_iterator<OutputIterator,T>& operator*();
       raw_storage_iterator<OutputIterator,T>& operator=(const T& element);
       raw_storage_iterator<OutputIterator,T>& operator=(T&& element);
       raw_storage_iterator<OutputIterator,T>& operator++();
       raw_storage_iterator<OutputIterator,T> operator++(int);
   };
   }
   

2. Insert the new signature and a new paragraph before p4:

   raw_storage_iterator<OutputIterator,T>& operator=(const T& element);
   raw_storage_iterator<OutputIterator,T>& operator=(T&& element);
   

   -?- Requires: For the first signature T shall be CopyConstructible. For the second signature T shall be MoveConstructible.

   -4- Effects: Constructs a value from element at the location to which the iterator points.

   -5- Returns: A reference to the iterator.