note
	description: "Represents a user passed argument option for natural arguments."
	legal: "See notice at end of class."
	status: "See notice at end of class."
	date: "$Date$"
	revision: "$Revision$"

class
	ARGUMENT_NATURAL_OPTION

inherit
	ARGUMENT_OPTION

create {ARGUMENT_NATURAL_SWITCH}
	make,
	make_with_value

convert
	natural_8_value: {NATURAL_8},
	natural_16_value: {NATURAL_16},
	natural_32_value: {NATURAL_32},
	natural_64_value: {NATURAL_64}

feature -- Access

	natural_8_value: NATURAL_8
			-- `value' as an {NATURAL_8}
		require
			has_value: has_value
		do
			Result := value.to_natural_8
		end

	natural_16_value: NATURAL_16
			-- `value' as an {NATURAL_16}
		require
			has_value: has_value
		do
			Result := value.to_natural_16
		end

	natural_32_value: NATURAL_32
			-- `value' as an {NATURAL_32}
		require
			has_value: has_value
		do
			Result := value.to_natural_32
		end

	natural_64_value: NATURAL_64
			-- `value' as an {NATURAL_64}
		require
			has_value: has_value
		do
			Result := value.to_natural_64
		end

invariant
	value_is_natural: has_value implies value.is_natural

note
	copyright: "Copyright (c) 1984-2009, Eiffel Software"
	license:   "GPL version 2 (see http://www.eiffel.com/licensing/gpl.txt)"
	licensing_options: "http://www.eiffel.com/licensing"
	copying: "[
			This file is part of Eiffel Software's Eiffel Development Environment.
			
			Eiffel Software's Eiffel Development Environment is free
			software; you can redistribute it and/or modify it under
			the terms of the GNU General Public License as published
			by the Free Software Foundation, version 2 of the License
			(available at the URL listed under "license" above).
			
			Eiffel Software's Eiffel Development Environment is
			distributed in the hope that it will be useful, but
			WITHOUT ANY WARRANTY; without even the implied warranty
			of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
			See the GNU General Public License for more details.
			
			You should have received a copy of the GNU General Public
			License along with Eiffel Software's Eiffel Development
			Environment; if not, write to the Free Software Foundation,
			Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
		]"
	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 {ARGUMENT_NATURAL_OPTION}