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1 149 jeremybenn
-- C45534B.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 CONSTRAINT_ERROR IS RAISED WHEN A
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--     FIXED POINT VALUE IS DIVIDED BY ZERO (EITHER AN INTEGER ZERO OR
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--     A FIXED POINT ZERO).
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-- *** NOTE: This test has been modified since ACVC version 1.11 to    -- 9X
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-- ***       remove incompatibilities associated with the transition   -- 9X
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-- ***       to Ada 9X.                                                -- 9X
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-- ***                                                                 -- 9X
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-- HISTORY:
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--     BCB 07/14/88  CREATED ORIGINAL TEST.
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--     MRM 03/30/93  REMOVED NUMERIC ERROR FOR 9X CONSISTENCY
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WITH REPORT; USE REPORT;
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PROCEDURE C45534B IS
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     TYPE FIX IS DELTA 2.0**(-1) RANGE -2.0 .. 2.0;
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     TYPE FIX2 IS DELTA 2.0**(-1) RANGE -3.0 .. 3.0;
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     A : FIX := 1.0;
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     B : FIX;
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     ZERO : FIX := 0.0;
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     ZERO2 : FIX2 := 0.0;
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     FUNCTION IDENT_FLT (ONE, TWO : FIX) RETURN BOOLEAN IS
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     BEGIN
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          RETURN ONE = FIX (TWO * FIX (IDENT_INT(1)));
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     END IDENT_FLT;
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BEGIN
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     TEST ("C45534B", "CHECK THAT CONSTRAINT_ERROR IS RAISED WHEN " &
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                      "A FIXED POINT VALUE IS " &
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                      "DIVIDED BY ZERO (EITHER AN INTEGER ZERO OR A " &
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                      "FIXED POINT ZERO)");
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     BEGIN
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          B := A / IDENT_INT (0);
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          FAILED ("NO EXCEPTION RAISED FOR DIVISION BY INTEGER ZERO");
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          IF IDENT_FLT (B,B) THEN
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               COMMENT ("DON'T OPTIMIZE B");
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          END IF;
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     EXCEPTION
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          WHEN CONSTRAINT_ERROR =>
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               NULL;
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          WHEN OTHERS =>
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               FAILED ("OTHER EXCEPTION RAISED");
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     END;
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     BEGIN
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          B := FIX (A / ZERO);
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          FAILED ("NO EXCEPTION RAISED FOR DIVISION BY FIXED POINT " &
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                  "ZERO - 1");
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          IF IDENT_FLT (B,B) THEN
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               COMMENT ("DON'T OPTIMIZE B");
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          END IF;
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     EXCEPTION
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          WHEN CONSTRAINT_ERROR =>
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               NULL;
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          WHEN OTHERS =>
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               FAILED ("OTHER EXCEPTION RAISED");
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      END;
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     BEGIN
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          B := FIX (A / ZERO2);
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          FAILED ("NO EXCEPTION RAISED FOR DIVISION BY FIXED POINT " &
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                  "ZERO - 2");
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          IF IDENT_FLT (B,B) THEN
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               COMMENT ("DON'T OPTIMIZE B");
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          END IF;
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     EXCEPTION
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          WHEN CONSTRAINT_ERROR =>
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               NULL;
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          WHEN OTHERS =>
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               FAILED ("OTHER EXCEPTION RAISED");
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      END;
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     RESULT;
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END C45534B;

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