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-- CB4008A.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.

--*

-- CHECK THAT NESTED LAST WISHES EXCEPTION HANDLERS WORK 

-- (FOR PROCEDURES).

-- DAT 4/15/81

-- SPS 3/28/83

WITH REPORT; USE REPORT;

PROCEDURE CB4008A IS

     C : INTEGER := 0;

     E : EXCEPTION;

     DEPTH : CONSTANT := 99;

     PROCEDURE F;

     PROCEDURE I IS

     BEGIN

          C := C + 1;

          IF C >= DEPTH THEN

               RAISE E;

          END IF;

     END I;

     PROCEDURE O IS

     BEGIN

          C := C - 1;

     END O;

     PROCEDURE X IS

          PROCEDURE X1 IS

               PROCEDURE X2 IS

               BEGIN

                    F;

               END X2;

               PROCEDURE X3 IS

               BEGIN

                    I;

                    X2;

               EXCEPTION

                    WHEN E => O; RAISE;

               END X3;

          BEGIN

               I;

               X3;

          EXCEPTION

               WHEN E => O; RAISE;

          END X1;

          PROCEDURE X1A IS

          BEGIN

               I;

               X1;

               FAILED ("INCORRECT EXECUTION SEQUENCE");

          EXCEPTION

               WHEN E => O; RAISE;

          END X1A;

     BEGIN

          I;

          X1A;

     EXCEPTION

          WHEN E => O; RAISE;

     END X;

     PROCEDURE Y IS

     BEGIN

          I;

          X;

     EXCEPTION WHEN E => O; RAISE;

     END Y;

     PROCEDURE F IS

          PROCEDURE F2;

          PROCEDURE F1 IS

          BEGIN

               I;

               F2;

          EXCEPTION WHEN E => O; RAISE;

          END F1;

          PROCEDURE F2 IS

          BEGIN

               I;

               Y;

          EXCEPTION WHEN E => O; RAISE;

          END F2;

     BEGIN

          I;

          F1;

     EXCEPTION WHEN E => O; RAISE;

     END F;

BEGIN

     TEST ("CB4008A", "(PROCEDURE) LAST WISHES UNWIND PROPERLY");

     BEGIN

          I;

          Y;

          FAILED ("INCORRECT EXECUTION SEQUENCE 2");

     EXCEPTION

          WHEN E =>

               O;

               IF C /= 0 THEN

                    FAILED ("EXCEPTION HANDLER MISSED SOMEWHERE");

               END IF;

     END;

     RESULT;

END CB4008A;