class TEST create make feature {NONE} -- Initialization make is -- Execute test. local l_interval: INTERVAL_B do create l_integer l_integer.set_lower (create {INT_VAL_B}) create l_character l_character.set_lower (create {CHAR_VAL_B}) l_interval := l_integer l_interval.generate l_interval := l_character l_interval.generate end l_integer: TYPED_INTERVAL_B [INT_VAL_B] l_character: TYPED_INTERVAL_B [CHAR_VAL_B] end