178b9c1e   
   From: daniel.kruegler@googlemail.com   
      
   On 2012-03-02 11:41, Gene Bushuyev wrote:   
   > I was looking at the C++11 standard docs and didn't see iterators for   
   > rvalue containers.   
      
   There exist a general adapter for any forward iterator to a "moving   
   iterator", namely std::move_iterator.   
      
   > For example, std::vector has only these begin()   
   > member functions:   
   >   
   > iterator begin();   
   > const_iterator begin() const;   
   >   
   > Where is "iterator begin()&&;" ?   
      
   It does not exist, for good reasons:   
      
   1) You cannot overload ref-qualified and non-ref-qualified member   
   functions, so simply adding begin() &&; would make instantiating vector   
   for these functions ill-formed.   
      
   2) They are not needed, because you can call a non-ref-qualified from an   
   rvalue.   
      
   3) It would not help solving your problem to provide begin()&& returning   
   an iterator, because the root of your problem is that the iterator's   
   indirection operator returns an lvalue, but you need one with an rvalue.   
      
   > Say, I want to construct my container by moving from a vector,   
   >   
   > MyContainer::MyContainer(vector