note description: "[ Active structures, which always have a current position accessible through a cursor. ]" library: "Free implementation of ELKS library" legal: "See notice at end of class." status: "See notice at end of class." names: cursor_structure, access access: cursor, membership contents: generic date: "$Date: 2012-07-23 21:02:19 +0000 (Mon, 23 Jul 2012) $" revision: "$Revision: 91989 $" deferred class CURSOR_STRUCTURE [G] inherit ACTIVE [G] feature -- Access cursor: CURSOR -- Current cursor position deferred ensure cursor_not_void: Result /= Void end feature -- Status report valid_cursor (p: CURSOR): BOOLEAN -- Can the cursor be moved to position p? deferred end feature -- Cursor movement go_to (p: CURSOR) -- Move cursor to position p. require cursor_position_valid: valid_cursor (p) deferred end note copyright: "Copyright (c) 1984-2012, 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 -- class CURSOR_STRUCTURE
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