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1 720 jeremybenn
-- CE2201E.DEP
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--                             Grant of Unlimited Rights
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--
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--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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--     unlimited rights in the software and documentation contained herein.
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--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making
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--     this public release, the Government intends to confer upon all
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--     recipients unlimited rights  equal to those held by the Government.
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--     These rights include rights to use, duplicate, release or disclose the
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--     released technical data and computer software in whole or in part, in
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--     any manner and for any purpose whatsoever, and to have or permit others
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--     to do so.
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--
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--                                    DISCLAIMER
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--
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--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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--     PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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-- OBJECTIVE:
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--     CHECK WHETHER READ, WRITE, AND END_OF_FILE ARE SUPPORTED FOR
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--     SEQUENTIAL FILES WITH VARIANT RECORDS WITH NON-DEFAULT
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--     DISCRIMINANTS.
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--     IF I/O IS NOT SUPPORTED, THEN CREATE AND OPEN CAN RAISE USE_ERROR
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--     OR NAME_ERROR. SEE (AI-00332).
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-- APPLICABILITY CRITERIA:
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--     THIS TEST IS NON-APPLICABLE IF THE INSTANTIATION OF
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--     SEQUENTIAL_IO WITH VARIANT RECORDS HAVING NO DEFAULT
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--     DISCRIMINANT VALUES IS REJECTED.
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-- HISTORY:
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--     JBG 1/6/83
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--     JBG 5/2/83
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--     TBN 11/18/85     RENAMED FROM CE2201E.DEP AND MODIFIED COMMENTS.
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--                      SPLIT DEFAULT DISCRIMINANT CASE INTO
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--                      CE2201G.ADA.
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--     TBN 11/04/86     REVISED TEST TO OUTPUT A NON_APPLICABLE
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--                      RESULT WHEN FILES ARE NOT SUPPORTED.
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--     THS 03/30/90     RENAMED FROM EE2201E.ADA.
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WITH REPORT; USE REPORT;
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WITH SEQUENTIAL_IO;
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PROCEDURE CE2201E IS
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     INCOMPLETE : EXCEPTION;
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BEGIN
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     TEST ("CE2201E", "CHECK WHETHER READ, WRITE, AND END_OF_FILE " &
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                      "ARE SUPPORTED FOR SEQUENTIAL FILES WITH " &
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                      "UNCONSTRAINED VARIANT RECORD TYPES WITH " &
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                      "NON-DEFAULT DISCRIMINANTS.");
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     DECLARE
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          TYPE VAR_REC (DISCR : BOOLEAN) IS
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               RECORD
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                    CASE DISCR IS
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                         WHEN TRUE =>
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                              A : INTEGER;
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                         WHEN FALSE =>
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                              B : STRING (1..20);
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                    END CASE;
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               END RECORD;
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          PACKAGE SEQ_VAR_REC
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               IS NEW SEQUENTIAL_IO (VAR_REC);  -- N/A => ERROR.
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          USE SEQ_VAR_REC;
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          FILE_VAR_REC : FILE_TYPE;
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          ITEM_TRUE  : VAR_REC(TRUE);
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          ITEM_FALSE : VAR_REC(FALSE);
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     BEGIN
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          BEGIN
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               CREATE (FILE_VAR_REC);
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          EXCEPTION
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               WHEN USE_ERROR =>
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                    NOT_APPLICABLE ("USE_ERROR RAISED; SEQUENTIAL " &
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                                    "CREATE");
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                    RAISE INCOMPLETE;
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               WHEN NAME_ERROR =>
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                    NOT_APPLICABLE ("NAME_ERROR RAISED; SEQUENTIAL " &
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                                    "CREATE");
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                    RAISE INCOMPLETE;
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               WHEN OTHERS =>
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                    FAILED ("UNEXPECTED EXCEPTION RAISED; SEQUENTIAL " &
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                            "CREATE");
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                    RAISE INCOMPLETE;
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          END;
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          BEGIN
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               WRITE (FILE_VAR_REC, (TRUE, -6));
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               WRITE (FILE_VAR_REC, (FALSE, (1..20 => 'C')));
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          EXCEPTION
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               WHEN OTHERS =>
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                    FAILED ("WRITE FOR RECORD WITH DISCRIMINANT");
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          END;
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          BEGIN
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               RESET (FILE_VAR_REC,IN_FILE);
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          EXCEPTION
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               WHEN USE_ERROR =>
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                    NOT_APPLICABLE ("USE_ERROR FOR RESET");
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                    RAISE INCOMPLETE;
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          END;
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          IF END_OF_FILE (FILE_VAR_REC) THEN
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               FAILED ("WRONG END_OF_FILE VALUE FOR RECORD" &
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                       "WITH DISCRIMINANT");
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          END IF;
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          BEGIN
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               READ (FILE_VAR_REC,ITEM_TRUE);
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               IF ITEM_TRUE /= (TRUE, IDENT_INT(-6)) THEN
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                    FAILED ("READ WRONG VALUE - 1");
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               END IF;
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               IF END_OF_FILE (FILE_VAR_REC) THEN
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                    FAILED ("PREMATURE END OF FILE");
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               END IF;
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               READ (FILE_VAR_REC, ITEM_FALSE);
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               IF ITEM_FALSE /= (FALSE, (1..IDENT_INT(20) => 'C')) THEN
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                    FAILED ("READ WRONG VALUE - 2");
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               END IF;
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               IF NOT END_OF_FILE(FILE_VAR_REC) THEN
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                    FAILED ("NOT AT END OF FILE");
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               END IF;
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          EXCEPTION
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               WHEN OTHERS =>
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                    FAILED ("READ FOR VARIANT RECORD");
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          END;
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          CLOSE (FILE_VAR_REC);
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     END;
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     RESULT;
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EXCEPTION
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     WHEN INCOMPLETE =>
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          RESULT;
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END CE2201E;

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