Subversion Repositories openrisc_2011-10-31

-- C52008B.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 A RECORD VARIABLE DECLARED WITH A SPECIFIED

--     DISCRIMINANT CONSTRAINT CANNOT HAVE A DISCRIMINANT VALUE ALTERED

--     BY ASSIGNMENT.  ASSIGNING AN ENTIRE RECORD VALUE WITH A

--     DIFFERENT DISCRIMINANT VALUE SHOULD RAISE CONSTRAINT_ERROR AND

--     LEAVE THE TARGET VARIABLE UNALTERED.  THIS TEST USES NON-STATIC

--     DISCRIMINANT VALUES.

-- HISTORY:

--     ASL  6/25/81  CREATED ORIGINAL TEST

--     JRK 11/18/82

--     RJW  8/17/89  ADDED SUBTYPE 'SUBINT'.

WITH REPORT;

PROCEDURE C52008B IS

     USE REPORT;

     TYPE REC1(D1,D2 : INTEGER) IS

          RECORD

               COMP1 : STRING(D1..D2);

          END RECORD;

     TYPE AR_REC1 IS ARRAY (NATURAL RANGE <>) OF REC1(IDENT_INT(3),

                                                      IDENT_INT(5));

     SUBTYPE SUBINT IS INTEGER RANGE -128 .. 127;

     TYPE REC2(D1,D2,D3,D4 : SUBINT := 0) IS

          RECORD

               COMP1 : STRING(1..D1);

               COMP2 : STRING(D2..D3);

               COMP5 : AR_REC1(1..D4);

               COMP6 : REC1(D3,D4);

          END RECORD;

     STR : STRING(IDENT_INT(3)..IDENT_INT(5)) := "ZZZ";

     R1A : REC1(IDENT_INT(3),IDENT_INT(5)) := (3,5,STR);

     R1C : REC1(5,6) := (5,6,COMP1 => (5..6 => 'K'));

     Q,R : REC2(IDENT_INT(2),IDENT_INT(3),IDENT_INT(5),IDENT_INT(6));

     TEMP : REC2(2,3,5,6);

     W : REC2(1,4,6,8);

     OK : BOOLEAN := FALSE;

BEGIN

     TEST ("C52008B", "CANNOT ASSIGN RECORD VARIABLE WITH SPECIFIED " &

                      "DISCRIMINANT VALUE A VALUE WITH A DIFFERENT " &

                      "(DYNAMIC) DISCRIMINANT VALUE");

     BEGIN

          R1A := (IDENT_INT(3),5,"XYZ");

          R := (IDENT_INT(2),IDENT_INT(3),IDENT_INT(5),IDENT_INT(6),

                "AB",

                STR,

                (1..6 => R1A),

                R1C);

          TEMP := R;

          Q := TEMP;

          R.COMP1 := "YY";

          OK := TRUE;

          W := R;

          FAILED ("ASSIGNMENT MADE USING INCORRECT DISCRIMINANT " &

                  "VALUES");

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               IF NOT OK

               OR Q /= TEMP

               OR R = TEMP

               OR R = Q

               OR W.D4 /= 8 THEN

                    FAILED ("LEGITIMATE ASSIGNMENT FAILED");

               END IF;

          WHEN OTHERS =>

               FAILED ("WRONG EXCEPTION");

     END;

     RESULT;

END C52008B;