note
	description: "[
		Stacks (last-in, first-out dispensers), without commitment
		to a particular representation
	]"
	library: "Free implementation of ELKS library"
	legal: "See notice at end of class."
	status: "See notice at end of class."
	names: stack, dispenser
	access: fixed, lifo, membership
	contents: generic
	date: "$Date: 2012-07-23 21:02:19 +0000 (Mon, 23 Jul 2012) $"
	revision: "$Revision: 91989 $"

deferred class interface
	STACK [G]

feature -- Element change

	extend (v: like item)
			-- Push v onto top.
			-- Was declared in STACK as synonym of force and put.
		ensure then
			item_pushed: item = v

	force (v: like item)
			-- Push v onto top.
			-- Was declared in STACK as synonym of extend and put.
		ensure then
			item_pushed: item = v

	put (v: like item)
			-- Push v onto top.
			-- Was declared in STACK as synonym of extend and force.
		ensure then
			item_pushed: item = v

	replace (v: like item)
			-- Replace top item by v.

	fill (other: LINEAR [G])
			-- Fill with as many items of other as possible.
			-- Fill items with greatest index from other first.
			-- Items inserted with lowest index (from other) will
			-- always be on the top of stack.
			-- The representations of other and current structure
			-- need not be the same.
	
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 STACK

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