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