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-- C37305A.ADA

--                             Grant of Unlimited Rights

--

--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,

--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 

--     unlimited rights in the software and documentation contained herein.

--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 

--     this public release, the Government intends to confer upon all 

--     recipients unlimited rights  equal to those held by the Government.  

--     These rights include rights to use, duplicate, release or disclose the 

--     released technical data and computer software in whole or in part, in 

--     any manner and for any purpose whatsoever, and to have or permit others 

--     to do so.

--

--                                    DISCLAIMER

--

--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR

--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 

--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE

--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 

--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A

--     PARTICULAR PURPOSE OF SAID MATERIAL.

--*

-- CHECK THAT CHOICES DENOTING A NULL RANGE OF VALUES ARE PERMITTED,

-- AND THAT FOR CHOICES CONSISTING OF A SUBTYPE NAME FOLLOWED BY A

-- RANGE CONSTRAINT WHERE THE LOWER BOUND IS GREATER THAN THE UPPER

-- BOUND, THE BOUNDS NEED NOT BE IN THE RANGE OF THE SUBTYPE VALUES.

-- CHECK THAT AN OTHERS ALTERNATIVE CAN BE PROVIDED EVEN IF ALL VALUES

-- OF THE CASE EXPRESSION HAVE BEEN COVERED BY PRECEDING ALTERNATIVES.

-- ASL 7/14/81

-- JWC 6/28/85   RENAMED TO -AB

WITH REPORT;

PROCEDURE C37305A IS

     USE REPORT;

BEGIN

     TEST ("C37305A","NULL RANGES ALLOWED IN CHOICES FOR VARIANT " &

           "PARTS.  OTHERS ALTERNATIVE ALLOWED AFTER ALL VALUES " &

           "PREVIOUSLY COVERED");

     DECLARE

          SUBTYPE ST IS INTEGER RANGE 1..10;

          TYPE REC(DISC : ST := 1) IS

               RECORD

                    CASE DISC IS

                         WHEN 0..-1 => NULL;

                         WHEN 1..-3 => NULL;

                         WHEN 6..5 =>

                              COMP : INTEGER;

                         WHEN 11..10 => NULL;

                         WHEN 15..12 => NULL;

                         WHEN 11..0 => NULL;

                         WHEN 1..10 => NULL;

                         WHEN OTHERS => NULL;

                    END CASE;

               END RECORD;

          R : REC;

     BEGIN

          R := (DISC => 4);

          IF EQUAL(3,4) THEN

               R := (DISC => 7);

          END IF;

          IF R.DISC /= 4 THEN

               FAILED ("ASSIGNMENT FAILED");

          END IF;

     EXCEPTION

          WHEN OTHERS =>

               FAILED ("EXCEPTION RAISED");

     END;

     RESULT;

END C37305A;