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-- 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;
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