indexing description: "Facility to check the validity of hosts" status: "See notice at end of class" date: "$Date$" revision: "$Revision$" class interface HOST_VALIDITY_CHECKER feature -- Status report host_ok (h: STRING): BOOLEAN -- Is h a valid host? invariant -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) end -- class HOST_VALIDITY_CHECKER