ostream_iterator

Recall  copy(II begin, II end, OI out)
ostream_iterator  is an output iterator for  ostream  objects
Constructor:
 template  <typename  T>
 ostream_iterator<T>(ostream  &os,
                                 const  char*  sep  =  "");
Creates an  ostream_iterator  object for outputting objects of type  T  to the ostream  os  separated by  sep