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-- 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 ;