note
	description: "External forward one-step iteration cursor for {ARRAYED_LIST}."
	library: "EiffelBase: Library of reusable components for Eiffel."
	date: "$Date: 2016-04-13 13:29:38 +0000 (Wed, 13 Apr 2016) $"
	revision: "$Revision: 98619 $"

class 
	ARRAYED_LIST_ITERATION_CURSOR [G]

inherit
	GENERAL_SPECIAL_ITERATION_CURSOR [G, ARRAYED_LIST [G]]
		redefine
			is_valid
		end

create {ARRAYED_LIST, ARRAYED_LIST_ITERATION_CURSOR}
	make

feature {NONE} -- Creation

	make (t: like target)
			-- Initialize cursor for target t.
		require
			t_attached: attached t
		do
			target := t
			area := target.area
			area_last_index := t.upper - First_index
		ensure
			target_set: target = t
			is_valid: is_valid
			default_step: Step = 1
			ascending_traversal: not Is_reversed
			first_index_set: First_index = t.Lower
			last_index_set: last_index = t.upper
		end
	
feature -- Access

	First_index: INTEGER_32 = 1
			-- First valid index of target structure for current iteration.
			-- Note that if Is_reversed, First_index might be greater than last_index.

	new_cursor: ARRAYED_LIST_ITERATION_CURSOR [G]
			-- Restarted cursor of the iteration.
		do
			create Result.make (target)
		end
	
feature -- Status report	

	is_valid: BOOLEAN
			-- Is the cursor still compatible with the associated underlying object?
		do
			Result := target.area = area and then Precursor
		end
	
feature {TYPED_INDEXABLE_ITERATION_CURSOR}{TYPED_INDEXABLE_ITERATION_CURSOR} -- Access

	target: ARRAYED_LIST [G]
			-- Associated structure used for iteration.
	
feature {NONE} -- Access

	Area_first_index: INTEGER_32 = 0
			-- First valid index of area.
	
note
	copyright: "Copyright (c) 1984-2016, 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 ARRAYED_LIST_ITERATION_CURSOR

Generated by ISE EiffelStudio