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-- C46051C.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 RECORD VALUES CAN BE CONVERTED IF THE OPERAND

--     AND TARGET TYPES ARE RELATED BY DERIVATION, EVEN IF THE OPERAND

--     AND TARGET TYPES HAVE DIFFERENT REPRESENTATIONS.

-- HISTORY:

--     JET 07/13/88  CREATED ORIGINAL TEST.

--     RJW 08/28/89  REMOVED APPLICABILITY CRITERIA AND CHANGED

--                   EXTENSION TO 'ADA'.

WITH REPORT; USE REPORT;

WITH SYSTEM;

PROCEDURE C46051C IS

     UNITS_PER_INTEGER : CONSTANT :=

          (INTEGER'SIZE+SYSTEM.STORAGE_UNIT-1) / SYSTEM.STORAGE_UNIT;

     TYPE ARR IS ARRAY (1..2) OF INTEGER;

     TYPE REC IS RECORD

          F1 : INTEGER;

          F2 : INTEGER;

          F3 : INTEGER;

     END RECORD;

     TYPE REC1 IS NEW REC;

     FOR REC1 USE

          RECORD

               F1 AT 0 RANGE 0 .. INTEGER'SIZE - 1;

               F2 AT 1*UNITS_PER_INTEGER RANGE 0..INTEGER'SIZE - 1;

               F3 AT 3*UNITS_PER_INTEGER RANGE 0..INTEGER'SIZE - 1;

          END RECORD;

     TYPE REC2 IS NEW REC;

     FOR REC2 USE

          RECORD

               F1 AT 0 RANGE 0 .. INTEGER'SIZE - 1;

               F2 AT 2*UNITS_PER_INTEGER RANGE 0..INTEGER'SIZE - 1;

               F3 AT 3*UNITS_PER_INTEGER RANGE 0..INTEGER'SIZE - 1;

          END RECORD;

     TYPE REC3 IS NEW REC1;

     R  : REC  := (IDENT_INT (0), 1, 2);

     R1 : REC1 := (IDENT_INT (1), 2, 3);

     R2 : REC2 := (IDENT_INT (2), 3, 4);

     R3 : REC3 := (IDENT_INT (3), 4, 5);

BEGIN

     TEST ( "C46051C", "CHECK THAT RECORD VALUES CAN BE " &

                       "CONVERTED IF THE OPERAND AND TARGET TYPES " &

                       "ARE RELATED BY DERIVATION, EVEN IF THE " &

                       "OPERAND AND TARGET TYPES HAVE DIFFERENT " &

                       "REPRESENTATIONS");

     IF REC1(R) /= (0,1,2) THEN

          FAILED ( "INCORRECT CONVERSION OF 'REC1 (R)'" );

     END IF;

     IF REC (R1) /= (1,2,3) THEN

          FAILED ( "INCORRECT CONVERSION OF 'REC (R1)'" );

     END IF;

     IF REC1 (R2) /= (2,3,4) THEN

          FAILED ( "INCORRECT CONVERSION OF 'REC1 (R2)'" );

     END IF;

     IF REC2 (R3) /= (3,4,5) THEN

          FAILED ( "INCORRECT CONVERSION OF 'REC2 (R3)'" );

     END IF;

     IF REC (R) /= (0,1,2) THEN

          FAILED ( "INCORRECT CONVERSION OF 'REC (R)'" );

     END IF;

     IF REC2 (R1) /= (1,2,3) THEN

          FAILED ( "INCORRECT CONVERSION OF 'REC2 (R1)'" );

     END IF;

     IF REC3 (R2) /= (2,3,4) THEN

          FAILED ( "INCORRECT CONVERSION OF 'REC3 (R2)'" );

     END IF;

     IF REC (R3) /= (3,4,5) THEN

          FAILED ( "INCORRECT CONVERSION OF 'REC (R3)'" );

     END IF;

     RESULT;

EXCEPTION

     WHEN OTHERS =>

          FAILED ( "EXCEPTION RAISED DURING CONVERSION OF " &

                   "RECORD TYPES" );

          RESULT;

END C46051C;