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1 720 jeremybenn
-- CE2401L.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 REWRITING AN ELEMENT DOES NOT CHANGE THE SIZE OF
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--     THE FILE.
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-- APPLICABILITY CRITERIA:
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--     THIS TEST IS ONLY APPLICABLE TO IMPLEMENTATIONS WHICH SUPPORT
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--     CREATE WITH INOUT_FILE MODE FOR DIRECT FILES.
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-- HISTORY:
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--     DWC 08/12/87  CREATED ORIGINAL TEST.
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WITH REPORT; USE REPORT;
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WITH DIRECT_IO;
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PROCEDURE CE2401L IS
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     END_SUBTEST: EXCEPTION;
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BEGIN
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     TEST ("CE2401L" , "CHECK THAT REWRITING AN ELEMENT DOES NOT " &
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                       "CHANGE THE SIZE OF THE FILE");
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     DECLARE
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          PACKAGE DIR_IO IS NEW DIRECT_IO (INTEGER);
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          USE DIR_IO;
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          FILE : FILE_TYPE;
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     BEGIN
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          BEGIN
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               CREATE (FILE, INOUT_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 WITH INOUT_FILE MODE " &
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                                    "NOT SUPPORTED");
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                    RAISE END_SUBTEST;
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               WHEN OTHERS =>
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                    FAILED ("UNEXPECTED ERROR RAISED ON " &
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                            "CREATE");
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                    RAISE END_SUBTEST;
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          END;
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          DECLARE
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               OUT_ITEM1 : INTEGER := 10;
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               OUT_ITEM2 : INTEGER := 21;
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               OUT_ITEM4 : INTEGER := 43;
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               IN_ITEM   : INTEGER;
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               ONE  : POSITIVE_COUNT := 1;
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               TWO  : POSITIVE_COUNT := 2;
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               FOUR : POSITIVE_COUNT := 4;
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               OLD_FILE_SIZE : POSITIVE_COUNT;
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          BEGIN
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               BEGIN
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                    WRITE (FILE, OUT_ITEM1, ONE);
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                    WRITE (FILE, OUT_ITEM4, FOUR);
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               EXCEPTION
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                    WHEN OTHERS =>
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                         FAILED ("EXCEPTION RAISED ON WRITE " &
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                                 "IN INOUT_FILE MODE");
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                         RAISE END_SUBTEST;
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               END;
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               OLD_FILE_SIZE := SIZE (FILE);
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               WRITE (FILE, OUT_ITEM1, ONE);
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               WRITE (FILE, OUT_ITEM4, FOUR);
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               IF OLD_FILE_SIZE /= SIZE (FILE) THEN
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                    FAILED ("FILE SIZE CHANGED DURING REWRITE - 1");
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                    RAISE END_SUBTEST;
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               END IF;
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               WRITE (FILE, OUT_ITEM1, ONE);
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               WRITE (FILE, OUT_ITEM2, TWO);
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               WRITE (FILE, OUT_ITEM4, FOUR);
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               OLD_FILE_SIZE := SIZE (FILE);
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               WRITE (FILE, OUT_ITEM1, FOUR);
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               IF OLD_FILE_SIZE /= SIZE (FILE) THEN
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                    FAILED ("FILE SIZE CHANGED DURING REWRITE - 2");
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                    RAISE END_SUBTEST;
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               END IF;
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          EXCEPTION
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               WHEN END_SUBTEST =>
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                    NULL;
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          END;
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          BEGIN
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               DELETE (FILE);
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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 END_SUBTEST =>
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               NULL;
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     END;
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     RESULT;
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END CE2401L;

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