note description: "Truth values, with the boolean operations" external_name: "System.Boolean" assembly: "mscorlib" library: "Free implementation of ELKS library" status: "See notice at end of class." legal: "See notice at end of class." date: "$Date$" revision: "$Revision$" frozen expanded class BOOLEAN feature -- Access item: like Current feature -- Settings set_item (i: like Current) -- Make `i' the item value. do item := i ensure item_set: item = i end feature -- Basic operations conjuncted alias "and" (other: BOOLEAN): BOOLEAN -- Boolean conjunction with `other' do end conjuncted_semistrict alias "and then" (other: BOOLEAN): BOOLEAN -- Boolean semi-strict conjunction with `other' do end implication alias "implies" (other: BOOLEAN): BOOLEAN -- Boolean implication of `other' -- (semi-strict) do end negated alias "not": BOOLEAN -- Negation do end disjuncted alias "or" (other: BOOLEAN): BOOLEAN -- Boolean disjunction with `other' do end disjuncted_semistrict alias "or else" (other: BOOLEAN): BOOLEAN -- Boolean semi-strict disjunction with `other' do end disjuncted_exclusive alias "xor" (other: BOOLEAN): BOOLEAN -- Boolean exclusive or with `other' do end note copyright: "Copyright (c) 1984-2014, 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