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-- C46052A.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 CONSTRAINT_ERROR IS RAISED FOR CONVERSION TO AN 

-- ENUMERATION TYPE IF THE VALUE OF THE OPERAND DOES NOT BELONG TO THE

-- RANGE OF ENUMERATION VALUES FOR THE TARGET SUBTYPE.

-- R.WILLIAMS 9/9/86

WITH REPORT; USE REPORT;

PROCEDURE C46052A IS

     TYPE ENUM IS (A, AB, ABC, ABCD);

     E : ENUM := ENUM'VAL (IDENT_INT (0));

     FUNCTION IDENT (E : ENUM) RETURN ENUM IS

     BEGIN

          RETURN ENUM'VAL (IDENT_INT (ENUM'POS (E)));

     END IDENT;

BEGIN

     TEST ( "C46052A", "CHECK THAT CONSTRAINT_ERROR IS RAISED FOR " &

                       "CONVERSION TO AN ENUMERATION TYPE IF THE " &

                       "VALUE OF THE OPERAND DOES NOT BELONG TO " &

                       "THE RANGE OF ENUMERATION VALUES FOR THE " &

                       "TARGET SUBTYPE" );

     DECLARE

          SUBTYPE SENUM IS ENUM RANGE AB .. ABCD;

     BEGIN

          E := IDENT (SENUM (E));

          FAILED ( "NO EXCEPTION RAISED FOR 'SENUM (E)'" );

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               NULL;

          WHEN OTHERS =>

               FAILED ( "WRONG EXCEPTION RAISED FOR 'SENUM (E)'" );

     END;

     DECLARE

          SUBTYPE NOENUM IS ENUM RANGE ABCD .. AB;

     BEGIN

          E := IDENT (NOENUM (E));

          FAILED ( "NO EXCEPTION RAISED FOR 'NOENUM (E)'" );

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               NULL;

          WHEN OTHERS =>

               FAILED ( "WRONG EXCEPTION RAISED FOR 'NOENUM (E)'" );

     END;

     DECLARE

          SUBTYPE SCHAR IS CHARACTER RANGE 'C' .. 'R';

          A : CHARACTER := IDENT_CHAR ('A');

     BEGIN

          A := IDENT_CHAR (SCHAR (A));

          FAILED ( "NO EXCEPTION RAISED FOR 'SCHAR (A)'" );

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               NULL;

          WHEN OTHERS =>

               FAILED ( "WRONG EXCEPTION RAISED FOR 'SCHAR (A)'" );

     END;

     DECLARE

          SUBTYPE FRANGE IS BOOLEAN RANGE FALSE .. FALSE;

          T : BOOLEAN := IDENT_BOOL (TRUE);

     BEGIN

          T := IDENT_BOOL (FRANGE (T));

          FAILED ( "NO EXCEPTION RAISED FOR 'FRANGE (T)'" );

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               NULL;

          WHEN OTHERS =>

               FAILED ( "WRONG EXCEPTION RAISED FOR 'FRANGE (T)'" );

     END;

     RESULT;

END C46052A;