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1 149 jeremybenn
-- CE2201G.ADA
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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 THAT READ, WRITE, AND END_OF_FILE ARE SUPPORTED
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--      FOR SEQUENTIAL FILES WITH VARIANT RECORDS WITH DEFAULT
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--      DISCRIMINANTS.
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-- APPLICABILITY CRITERIA:
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--     THIS TEST IS APPLICABLE ONLY TO IMPLEMENTATIONS WHICH SUPPORT
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--     SEQUENTIAL FILES.
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-- HISTORY:
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--     TBN 05/15/86
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--     TBN 11/04/86  REVISED TEST TO OUTPUT A NOT_APPLICABLE
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--                   RESULT WHEN FILES ARE NOT SUPPORTED.
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--     JLH 08/03/87  REMOVED DEPENDENCE OF RESET AND CREATED EXTERNAL
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--                   FILES RATHER THAN TEMPORARY FILES.
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WITH REPORT; USE REPORT;
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WITH SEQUENTIAL_IO;
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PROCEDURE CE2201G IS
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BEGIN
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     TEST ("CE2201G", "CHECK THAT 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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                      "DEFAULT DISCRIMINANTS.");
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     DECLARE
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          TYPE VAR_REC (DISCR : BOOLEAN := TRUE) 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 IS NEW SEQUENTIAL_IO (VAR_REC);
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          USE SEQ_VAR_REC;
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          FILE_VAR_REC : FILE_TYPE;
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          INCOMPLETE : EXCEPTION;
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          ITEM_TRUE : VAR_REC(TRUE);     -- CONSTRAINED
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          ITEM      : VAR_REC;           -- UNCONSTRAINED
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     BEGIN
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          BEGIN
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               CREATE (FILE_VAR_REC, OUT_FILE, LEGAL_FILE_NAME);
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          EXCEPTION
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               WHEN USE_ERROR | NAME_ERROR =>
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                    NOT_APPLICABLE ("CREATE OF SEQUENTIAL FILE WITH " &
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                                    "MODE OUT_FILE NOT SUPPORTED");
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                    RAISE INCOMPLETE;
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          END;
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          WRITE (FILE_VAR_REC, (TRUE, -5));
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          WRITE (FILE_VAR_REC, (FALSE, (1..20 => 'B')));
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          CLOSE (FILE_VAR_REC);
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          BEGIN
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               OPEN (FILE_VAR_REC, IN_FILE, LEGAL_FILE_NAME);
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          EXCEPTION
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               WHEN USE_ERROR =>
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                    NOT_APPLICABLE ("OPEN OF SEQUENTIAL FILE WITH " &
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                                    "MODE IN_FILE NOT SUPPORTED");
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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(-5)) 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);
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               IF ITEM /= (FALSE, (1..IDENT_INT(20) => 'B')) 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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          END;
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          BEGIN
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               DELETE (FILE_VAR_REC);
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          EXCEPTION
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               WHEN USE_ERROR =>
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                    NULL;
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          END;
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     EXCEPTION
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          WHEN INCOMPLETE =>
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               NULL;
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     END;
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     RESULT;
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END CE2201G;

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