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-- CE2201E.DEP

--                             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.

--*

-- OBJECTIVE:

--     CHECK WHETHER READ, WRITE, AND END_OF_FILE ARE SUPPORTED FOR

--     SEQUENTIAL FILES WITH VARIANT RECORDS WITH NON-DEFAULT

--     DISCRIMINANTS.

--     IF I/O IS NOT SUPPORTED, THEN CREATE AND OPEN CAN RAISE USE_ERROR

--     OR NAME_ERROR. SEE (AI-00332).

-- APPLICABILITY CRITERIA:

--     THIS TEST IS NON-APPLICABLE IF THE INSTANTIATION OF

--     SEQUENTIAL_IO WITH VARIANT RECORDS HAVING NO DEFAULT

--     DISCRIMINANT VALUES IS REJECTED.

-- HISTORY:

--     JBG 1/6/83

--     JBG 5/2/83

--     TBN 11/18/85     RENAMED FROM CE2201E.DEP AND MODIFIED COMMENTS.

--                      SPLIT DEFAULT DISCRIMINANT CASE INTO

--                      CE2201G.ADA.

--     TBN 11/04/86     REVISED TEST TO OUTPUT A NON_APPLICABLE

--                      RESULT WHEN FILES ARE NOT SUPPORTED.

--     THS 03/30/90     RENAMED FROM EE2201E.ADA.

WITH REPORT; USE REPORT;

WITH SEQUENTIAL_IO;

PROCEDURE CE2201E IS

     INCOMPLETE : EXCEPTION;

BEGIN

     TEST ("CE2201E", "CHECK WHETHER READ, WRITE, AND END_OF_FILE " &

                      "ARE SUPPORTED FOR SEQUENTIAL FILES WITH " &

                      "UNCONSTRAINED VARIANT RECORD TYPES WITH " &

                      "NON-DEFAULT DISCRIMINANTS.");

     DECLARE

          TYPE VAR_REC (DISCR : BOOLEAN) IS

               RECORD

                    CASE DISCR IS

                         WHEN TRUE =>

                              A : INTEGER;

                         WHEN FALSE =>

                              B : STRING (1..20);

                    END CASE;

               END RECORD;

          PACKAGE SEQ_VAR_REC

               IS NEW SEQUENTIAL_IO (VAR_REC);  -- N/A => ERROR.

          USE SEQ_VAR_REC;

          FILE_VAR_REC : FILE_TYPE;

          ITEM_TRUE  : VAR_REC(TRUE);

          ITEM_FALSE : VAR_REC(FALSE);

     BEGIN

          BEGIN

               CREATE (FILE_VAR_REC);

          EXCEPTION

               WHEN USE_ERROR =>

                    NOT_APPLICABLE ("USE_ERROR RAISED; SEQUENTIAL " &

                                    "CREATE");

                    RAISE INCOMPLETE;

               WHEN NAME_ERROR =>

                    NOT_APPLICABLE ("NAME_ERROR RAISED; SEQUENTIAL " &

                                    "CREATE");

                    RAISE INCOMPLETE;

               WHEN OTHERS =>

                    FAILED ("UNEXPECTED EXCEPTION RAISED; SEQUENTIAL " &

                            "CREATE");

                    RAISE INCOMPLETE;

          END;

          BEGIN

               WRITE (FILE_VAR_REC, (TRUE, -6));

               WRITE (FILE_VAR_REC, (FALSE, (1..20 => 'C')));

          EXCEPTION

               WHEN OTHERS =>

                    FAILED ("WRITE FOR RECORD WITH DISCRIMINANT");

          END;

          BEGIN

               RESET (FILE_VAR_REC,IN_FILE);

          EXCEPTION

               WHEN USE_ERROR =>

                    NOT_APPLICABLE ("USE_ERROR FOR RESET");

                    RAISE INCOMPLETE;

          END;

          IF END_OF_FILE (FILE_VAR_REC) THEN

               FAILED ("WRONG END_OF_FILE VALUE FOR RECORD" &

                       "WITH DISCRIMINANT");

          END IF;

          BEGIN

               READ (FILE_VAR_REC,ITEM_TRUE);

               IF ITEM_TRUE /= (TRUE, IDENT_INT(-6)) THEN

                    FAILED ("READ WRONG VALUE - 1");

               END IF;

               IF END_OF_FILE (FILE_VAR_REC) THEN

                    FAILED ("PREMATURE END OF FILE");

               END IF;

               READ (FILE_VAR_REC, ITEM_FALSE);

               IF ITEM_FALSE /= (FALSE, (1..IDENT_INT(20) => 'C')) THEN

                    FAILED ("READ WRONG VALUE - 2");

               END IF;

               IF NOT END_OF_FILE(FILE_VAR_REC) THEN

                    FAILED ("NOT AT END OF FILE");

               END IF;

          EXCEPTION

               WHEN OTHERS =>

                    FAILED ("READ FOR VARIANT RECORD");

          END;

          CLOSE (FILE_VAR_REC);

     END;

     RESULT;

EXCEPTION

     WHEN INCOMPLETE =>

          RESULT;

END CE2201E;