note
	description: "[
		Strategies for calculating several features for subsets containing
		items of any type.
	]"
	library: "Free implementation of ELKS library"
	legal: "See notice at end of class."
	status: "See notice at end of class."
	date: "$Date: 2019-07-05 15:26:16 +0000 (Fri, 05 Jul 2019) $"
	revision: "$Revision: 103325 $"

class interface
	SUBSET_STRATEGY_GENERIC [G]

create 
	default_create

feature -- Comparison

	disjoint (set1, set2: TRAVERSABLE_SUBSET [G]): BOOLEAN
			-- Are set1 and set2 disjoint?
	
feature -- Basic operations

	symdif (set1, set2: TRAVERSABLE_SUBSET [G])
			-- Remove all items of set1 that are also in set2, and add all
			-- items of set2 not already present in set1.
	
note
	copyright: "Copyright (c) 1984-2019, 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 SUBSET_STRATEGY_GENERIC

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