id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
6721,property_map_traits documentation does not mention reference,philipp.moeller@…,Douglas Gregor,"The documentation shows property_map_traits as:

namespace boost {
  template <typename PropertyMap>
  struct property_traits {
     typedef typename PropertyMap::key_type key_type;
     typedef typename PropertyMap::value_type value_type;
     typedef typename PropertyMap::category category;
  };
}

but the implementation also requires 

    typedef typename PropertyMap::reference reference;

to be defined.",Bugs,closed,To Be Determined,property_map,Boost 1.49.0,Problem,fixed,property_map,