// In header: <boost/property_map/concepts.hpp>

template<typename Func, typename Iter> 
struct BasicPropertyMap {
  // types
  typedef Iter                                   cursor;                     
  typedef Func                                   elements;                   
  typedef ReadableIterator< Iter >::reference    key_type;                   
  typedef traits::value_type< Func, Iter >::type value_type;                 
  typedef unspecified                            boost_concept_check__LINE__;
  typedef unspecified                            boost_concept_check__LINE__;
};