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+-- C97116A.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.
+--*
+-- OBJECTIVE:
+-- CHECK THAT THE GUARD CONDITIONS IN A SELECTIVE WAIT STATEMENT
+-- ARE NOT RE-EVALUATED DURING THE WAIT.
+
+-- HISTORY:
+-- WRG 7/10/86 CREATED ORIGINAL TEST.
+-- RJW 5/15/90 REMOVED SHARED VARIABLES.
+
+with Impdef;
+WITH REPORT; USE REPORT;
+PROCEDURE C97116A IS
+
+ GUARD_EVALUATIONS : NATURAL := 0;
+
+ FUNCTION GUARD RETURN BOOLEAN IS
+ BEGIN
+ GUARD_EVALUATIONS := GUARD_EVALUATIONS + 1;
+ RETURN FALSE;
+ END GUARD;
+
+ FUNCTION SO_LONG RETURN DURATION IS
+ BEGIN
+ RETURN 20.0;
+ END SO_LONG;
+
+BEGIN
+
+ TEST ("C97116A", "CHECK THAT THE GUARD CONDITIONS IN A " &
+ "SELECTIVE WAIT STATEMENT ARE NOT RE-EVALUATED " &
+ "DURING THE WAIT");
+
+ DECLARE
+
+ TASK T IS
+ ENTRY E;
+ END T;
+
+ TASK BODY T IS
+ BEGIN
+ SELECT
+ ACCEPT E;
+ FAILED ("ACCEPTED NONEXISTENT CALL TO E");
+ OR WHEN GUARD =>
+ DELAY 0.0;
+ FAILED ("EXECUTED ALTERNATIVE CLOSED BY FALSE " &
+ "GUARD FUNCTION" );
+ OR
+ DELAY SO_LONG * Impdef.One_Second;
+ END SELECT;
+ EXCEPTION
+ WHEN OTHERS =>
+ FAILED ("EXCEPTION RAISED");
+ END T;
+
+ TASK GET_CPU;
+
+ TASK BODY GET_CPU IS
+ BEGIN
+ WHILE NOT T'TERMINATED LOOP
+ DELAY 1.0 * Impdef.One_Second;
+ END LOOP;
+
+ END GET_CPU;
+
+ BEGIN
+
+ NULL;
+
+ END;
+
+ IF GUARD_EVALUATIONS /= 1 THEN
+ FAILED ("GUARD EVALUATED" &
+ NATURAL'IMAGE(GUARD_EVALUATIONS) & " TIMES");
+ END IF;
+
+ RESULT;
+
+END C97116A;