note description: "Structures with a finite item count" library: "Free implementation of ELKS library" legal: "See notice at end of class." status: "See notice at end of class." names: finite, storage; date: "$Date$" revision: "$Revision$" deferred class FINITE [G] inherit BOX [G] feature -- Measurement count: INTEGER -- Number of items deferred ensure count_non_negative: Result >= 0 end feature -- Status report is_empty: BOOLEAN -- Is structure empty? do Result := count = 0 end invariant empty_definition: is_empty = (count = 0) note copyright: "Copyright (c) 1984-2017, Eiffel Software and others" license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)" source: "[ Eiffel Software 5949 Hollister Ave., Goleta, CA 93117 USA Telephone 805-685-1006, Fax 805-685-6869 Website http://www.eiffel.com Customer support http://support.eiffel.com ]" end