| -- C97202A.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 THE INDEX IS EVALUATED BEFORE THE ENTRY PARAMETER AND BOTH |
| -- THE INDEX AND THE ENTRY PARAMETER ARE EVALUATED BEFORE THE RENDEZVOUS |
| -- IS ATTEMPED. |
| |
| -- RM 4/05/82 |
| -- TBN 2/3/86 ADDED A CHECK THAT INDEX IS EVALUATED BEFORE THE ENTRY |
| -- PARAMETER AND FIXED APPROPRIATE COMMENTS. |
| |
| WITH REPORT; USE REPORT; |
| PROCEDURE C97202A IS |
| |
| INDEX_COMPUTED : BOOLEAN := FALSE ; |
| FORMAL_COMPUTED : BOOLEAN := FALSE ; |
| |
| BEGIN |
| |
| TEST ("C97202A", "CHECK THAT THE INDEX IS EVALUATED BEFORE THE " & |
| "ENTRY PARAMETER AND BOTH INDEX AND THE ENTRY " & |
| "PARAMETER ARE EVALUATED BEFORE THE RENDEZVOUS " & |
| "IS ATTEMPTED"); |
| |
| DECLARE |
| SUBTYPE SHORT IS INTEGER RANGE 10..20 ; |
| |
| TASK T IS |
| ENTRY DO_IT_NOW_ORELSE (SHORT) |
| (DID_YOU_DO_IT : IN BOOLEAN); |
| ENTRY KEEP_ALIVE ; |
| END T ; |
| |
| TASK BODY T IS |
| BEGIN |
| ACCEPT KEEP_ALIVE ; |
| END T ; |
| |
| FUNCTION F1 (X:INTEGER) RETURN INTEGER IS |
| BEGIN |
| IF FORMAL_COMPUTED THEN |
| FAILED ("INDEX WAS NOT EVALUATED FIRST"); |
| END IF; |
| INDEX_COMPUTED := TRUE ; |
| RETURN (7) ; |
| END F1 ; |
| |
| FUNCTION F2 (X:INTEGER) RETURN BOOLEAN IS |
| BEGIN |
| FORMAL_COMPUTED := TRUE ; |
| RETURN (FALSE) ; |
| END F2 ; |
| |
| BEGIN |
| SELECT |
| T.DO_IT_NOW_ORELSE ( 6 + F1(7) ) |
| ( NOT(F2(7)) ) ; |
| ELSE |
| NULL ; |
| END SELECT; |
| |
| T.KEEP_ALIVE ; |
| END; -- END OF BLOCK CONTAINING THE ENTRY CALLS. |
| |
| IF INDEX_COMPUTED THEN |
| NULL ; |
| ELSE |
| FAILED( "ENTRY INDEX WAS NOT COMPUTED" ); |
| END IF; |
| |
| IF FORMAL_COMPUTED THEN |
| NULL ; |
| ELSE |
| FAILED( "ENTRY PARAMETER WAS NOT COMPUTED" ); |
| END IF; |
| |
| RESULT; |
| |
| END C97202A ; |