// In header: <boost/iterator/consumer_concept.hpp>

template<typename X> 
struct ConsumerConcept :
  public DefaultConstructible<X>, private CopyConstructible<X>
{
  // types
  typedef X::input_type input_type;                 
  typedef unspecified   boost_concept_check__LINE__;

  // construct/copy/destruct
  ~ConsumerConcept();
};