| -- C55B04A.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 LOOP IS NOT ENTERED IF THE LOWER BOUND OF THE DISCRETE |
| -- RANGE IS GREATER THAN THE UPPER BOUND, WHETHER REVERSE IS PRESENT |
| -- OR NOT. |
| |
| -- CHECK THAT LOOP BOUNDS ARE EVALUATED ONLY ONCE, UPON ENTRY TO |
| -- THE LOOP. |
| |
| -- DAS 01/12/81 |
| -- SPS 3/2/83 |
| -- JBG 8/21/83 |
| |
| WITH REPORT; |
| PROCEDURE C55B04A IS |
| |
| USE REPORT; |
| |
| C10 : CONSTANT INTEGER := 10; |
| I10 : INTEGER; |
| |
| BEGIN |
| TEST ( "C55B04A", "CHECK OPERATION OF A FOR LOOP OVER A NULL " & |
| "DISCRETE RANGE" ); |
| |
| -- NOTE: EXIT STATEMENTS ARE INCLUDED TO AID IN RECOVERY FROM |
| -- TEST FAILURE. |
| |
| -- SUBTESTS INVOLVING STATIC BOUNDS: |
| |
| FOR I IN 10..1 LOOP |
| FAILED ( "LOOPING OVER NULL RANGE 10..1" ); |
| EXIT; |
| END LOOP; |
| |
| FOR I IN REVERSE INTEGER RANGE -1..-10 LOOP |
| FAILED ( "LOOPING OVER NULL RANGE -1..-10" ); |
| EXIT; |
| END LOOP; |
| |
| FOR I IN (C10 + 3)..(-3 * C10 + 27) LOOP -- 13..-3 |
| FAILED ("LOOPING OVER NULL RANGE (C10 + 3)..(-3 * C10 + 27)"); |
| EXIT; |
| END LOOP; |
| |
| |
| -- SUBTESTS INVOLVING DYNAMIC BOUNDS: |
| |
| I10 := IDENT_INT(10); |
| |
| FOR I IN REVERSE I10..(I10-1) LOOP -- 10..9 |
| FAILED ( "LOOPING OVER NULL RANGE I10..(I10-1)"); |
| EXIT; |
| END LOOP; |
| |
| |
| FOR I IN (C10 - I10)..(I10 - 11) LOOP -- 0..-1 |
| FAILED ( "LOOPING OVER NULL RANGE (C10 - I10)..(I10 - 11)" ); |
| EXIT; |
| END LOOP; |
| |
| |
| -- SUBTEST OF BOUNDS EVALUTION ONLY AT ENTRY: |
| |
| FOR I IN 1..I10 LOOP |
| I10 := I10 - 1; |
| END LOOP; |
| IF (I10 /= 0) THEN |
| FAILED ( "LOOP BOUNDS NOT FIXED AT LOOP ENTRY" ); |
| END IF; |
| |
| RESULT; |
| |
| END C55B04A; |