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-- CB4006A.ADA

--                             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 THAT EXCEPTIONS IN A BLOCK IN A HANDLER

--     ARE HANDLED CORRECTLY.

-- HISTORY:

--     DAT 04/15/81

--     SPS 11/02/82

--     JET 01/06/88  UPDATED HEADER FORMAT AND ADDED CODE TO

--                   PREVENT OPTIMIZATION.

--     JRL 05/28/92  CHANGED CODE IN PROGRAM_ERROR BLOCK TO

--                   PREVENT OPTIMIZATION.

WITH REPORT;

USE REPORT;

PROCEDURE CB4006A IS

     I1 : INTEGER RANGE 1 .. 2 := 1;

     PROCEDURE P IS

     BEGIN

          IF EQUAL(3,3) THEN

               RAISE PROGRAM_ERROR;

          END IF;

     EXCEPTION

          WHEN PROGRAM_ERROR =>

               DECLARE

                    I : INTEGER RANGE 1 .. 1 := I1;

               BEGIN

                    IF EQUAL(I,I) THEN

                         I := I1 + 1;

                    END IF ;

                    FAILED ("EXCEPTION NOT RAISED 1");

                    IF NOT EQUAL(I,I) THEN

                         COMMENT ("CAN'T OPTIMIZE THIS");

                    END IF;

               EXCEPTION

                    WHEN CONSTRAINT_ERROR =>

                         IF I1 /= 1 THEN

                              FAILED ("WRONG HANDLER 1");

                         ELSE

                              I1 := I1 + 1;

                         END IF;

               END;

          WHEN CONSTRAINT_ERROR =>

               FAILED ("WRONG HANDLER 3");

     END P;

BEGIN

     TEST ("CB4006A", "CHECK THAT EXCEPTIONS IN BLOCKS IN " &

                      "HANDLERS WORK");

     P;

     IF IDENT_INT(I1) /= 2 THEN

          FAILED ("EXCEPTION NOT HANDLED CORRECTLY");

     ELSE

          BEGIN

               P;

               FAILED ("EXCEPTION NOT RAISED CORRECTLY 2");

          EXCEPTION

               WHEN CONSTRAINT_ERROR => NULL;

          END;

     END IF;

     RESULT;

EXCEPTION

     WHEN OTHERS => FAILED ("WRONG HANDLER 2");

          RESULT;

END CB4006A;