id summary reporter owner description type status milestone component version severity resolution keywords cc 6792 hash_value() for iterator_range Olaf van der Spek Neil Groves """hash_value(boost::iterator_range());"" uses ""operator unspecified_bool_type() const"" which is not right. Could you support hash_value() properly? Could you remove operator bool()? " Feature Requests closed Boost 1.56.0 range Boost 1.48.0 Problem fixed