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-- C35502N.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 'POS' AND 'VAL' YIELD THE CORRECT RESULTS WHEN

--     THE PREFIX IS A FORMAL DISCRETE TYPE WHOSE ACTUAL ARGUMENT IS

--     AN ENUMERATION TYPE, OTHER THAN A BOOLEAN OR A CHARACTER TYPE,

--     WITH AN ENUMERATION REPRESENTATION CLAUSE.

-- HISTORY:

--     RJW 05/27/86

--     DWC 07/22/87  ADDED THE PARAMETER 'N' TO FUNCTION F.

--     PWB 05/11/89  CHANGED EXTENSION FROM '.DEP' TO '.ADA'.

WITH REPORT; USE REPORT;

PROCEDURE C35502N IS

     TYPE ENUM IS (A, BC, ABC, A_B_C, ABCD);

     FOR ENUM USE (A => 1, BC => 4, ABC => 5, A_B_C => 6,

                   ABCD => 8);

     SUBTYPE SUBENUM IS ENUM RANGE A .. BC;

     TYPE NEWENUM IS NEW ENUM;

     SUBTYPE SUBNEW IS NEWENUM RANGE A .. BC;

BEGIN

     TEST ("C35502N", "CHECK THAT 'POS' AND 'VAL' YIELD THE " &

                      "CORRECT RESULTS WHEN THE PREFIX IS A " &

                      "FORMAL DISCRETE TYPE WHOSE ACTUAL ARGUMENT " &

                      "IS AN ENUMERATION TYPE, OTHER THAN A " &

                      "CHARACTER OR A BOOLEAN TYPE, WITH AN " &

                      "ENUMERATION REPRESENTATION CLAUSE" );

     DECLARE

          GENERIC

               TYPE E IS (<>);

               STR : STRING;

          PROCEDURE P;

          PROCEDURE P IS

               SUBTYPE SE IS E RANGE E'VAL(0) .. E'VAL(1);

               POSITION : INTEGER;

          BEGIN

               POSITION := 0;

               FOR E1 IN E LOOP

                    IF SE'POS (E1) /= POSITION THEN

                         FAILED ( "INCORRECT " & STR & "'POS (" &

                                   E'IMAGE (E1) & ")" );

                    END IF;

                    IF SE'VAL (POSITION) /= E1 THEN

                         FAILED ( "INCORRECT " & STR & "'VAL (" &

                                   INTEGER'IMAGE (POSITION) &

                                   ")" );

                    END IF;

                    POSITION := POSITION + 1;

               END LOOP;

               BEGIN

                    IF E'VAL (-1) = E'VAL (1) THEN

                         FAILED ( "NO EXCEPTION RAISED FOR " &

                                   STR & "'VAL (-1) - 1" );

                    ELSE

                         FAILED ( "NO EXCEPTION RAISED FOR " &

                                   STR & "'VAL (-1) - 2" );

                    END IF;

               EXCEPTION

                     WHEN CONSTRAINT_ERROR =>

                         NULL;

               WHEN OTHERS =>

                         FAILED ( "WRONG EXCEPTION RAISED FOR " &

                                   STR & "'VAL (-1)" );

               END;

               BEGIN

                    IF E'VAL (5) = E'VAL (4) THEN

                         FAILED ( "NO EXCEPTION RAISED FOR " &

                                   STR & "'VAL (5) - 1" );

                    ELSE

                         FAILED ( "NO EXCEPTION RAISED FOR " &

                                   STR & "'VAL (5) - 2" );

                    END IF;

               EXCEPTION

                    WHEN CONSTRAINT_ERROR =>

                         NULL;

                    WHEN OTHERS =>

                         FAILED ( "WRONG EXCEPTION RAISED FOR " &

                                   STR & "'VAL (5)" );

               END;

          END P;

          PROCEDURE PE IS NEW P ( ENUM, "ENUM" );

          PROCEDURE PN IS NEW P ( NEWENUM, "NEWENUM" );

     BEGIN

          PE;

          PN;

     END;

     DECLARE

          FUNCTION A_B_C RETURN ENUM IS

          BEGIN

               RETURN ENUM'VAL (IDENT_INT (0));

          END A_B_C;

          GENERIC

               TYPE E IS (<>);

          FUNCTION F (N : INTEGER;

                      E1 : E) RETURN BOOLEAN;

          FUNCTION F (N : INTEGER;

                      E1 : E) RETURN BOOLEAN IS

          BEGIN

               RETURN E'VAL (N) = E1;

          END F;

          FUNCTION FE IS NEW F (ENUM);

     BEGIN

     IF NOT FE (0, A_B_C) THEN

          FAILED ( "INCORRECT VAL FOR A_B_C WHEN HIDDEN " &

                   "BY A FUNCTION" );

     END IF;

     IF NOT FE (3, C35502N.A_B_C) THEN

                    FAILED ( "INCORRECT VAL FOR C35502N.A_B_C" );

     END IF;

     END;

     RESULT;

END C35502N;