| -- C41206A.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 A RANGE L..R, WHERE L=SUCC(R) CAN BE USED TO FORM |
| -- A NULL SLICE FROM AN ARRAY WHEN: |
| -- BOTH L AND R SATISFY THE INDEX CONSTRAINT; |
| -- L SATISFIES THE INDEX CONSTRAINT, R DOES NOT (BUT IT |
| -- BELONGS TO THE BASE TYPE OF THE INDEX); |
| -- L SATISFIES THE CONSTRAINT IMPOSED BY THE TYPE MARK OF |
| -- THE INDEX, BUT NOT THE CONSTRAINT ASSOCIATED WITH |
| -- THE INDEX; |
| -- THE ARRAY IS NULL, AND L IS IN THE RANGE OF THE INDEX SUBTYPE. |
| |
| -- WKB 8/10/81 |
| |
| WITH REPORT; |
| USE REPORT; |
| PROCEDURE C41206A IS |
| |
| TYPE SMALL IS RANGE 1..100; |
| TYPE T IS ARRAY (SMALL RANGE <> ) OF INTEGER; |
| SUBTYPE T1 IS T(5..10); |
| A : T1 := (5,6,7,8,9,10); |
| B : T(8..7) := (8..7 => 1); |
| |
| BEGIN |
| TEST ("C41206A", "USING A RANGE L..R, WHERE L=SUCC(R), " & |
| "TO FORM A NULL SLICE FROM AN ARRAY"); |
| |
| BEGIN |
| IF A (7..6) /= B OR A (SMALL(IDENT_INT(7))..6) /= B THEN |
| FAILED ("SLICE NOT NULL - 1"); |
| END IF; |
| EXCEPTION |
| WHEN OTHERS => FAILED ("EXCEPTION RAISED - 1"); |
| END; |
| |
| BEGIN |
| IF A (5..4) /= B OR A (SMALL(IDENT_INT(5))..4) /= B THEN |
| FAILED ("SLICE NOT NULL - 2"); |
| END IF; |
| EXCEPTION |
| WHEN OTHERS => FAILED ("EXCEPTION RAISED - 2"); |
| END; |
| |
| BEGIN |
| IF A (50..49) /= B OR A (SMALL(IDENT_INT(50))..49) /= B THEN |
| FAILED ("SLICE NOT NULL - 3"); |
| END IF; |
| EXCEPTION |
| WHEN OTHERS => FAILED ("EXCEPTION RAISED - 3"); |
| END; |
| |
| BEGIN |
| IF B (50..49) /= B OR B (SMALL(IDENT_INT(50))..49) /= B THEN |
| FAILED ("SLICE NOT NULL - 4"); |
| END IF; |
| EXCEPTION |
| WHEN OTHERS => FAILED ("EXCEPTION RAISED - 4"); |
| END; |
| |
| RESULT; |
| END C41206A; |