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+-- C3A0005.A
+--
+-- 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 access to subprogram may be stored within record
+-- objects, and that the access to subprogram can subsequently
+-- be called.
+--
+-- TEST DESCRIPTION:
+-- Declare an access to procedure type in a package specification.
+-- Declare two different procedures that can be referred to by the
+-- access to procedure type. Declare a record with the access to
+-- procedure type as a component. Use the access to procedure type to
+-- initialize the component of a record.
+--
+-- In the main program, declare an operation. An access value
+-- designating this operation is passed as a parameter to be
+-- stored in the record.
+--
+--
+-- CHANGE HISTORY:
+-- 06 Dec 94 SAIC ACVC 2.0
+--
+--!
+
+package C3A0005_0 is
+
+ Default_Call : Boolean := False;
+
+ type Button;
+
+
+ -- Type accesses to procedures Push and Default_Response
+ type Button_Response_Ptr is access procedure
+ (B : access Button);
+
+ procedure Push (B : access Button);
+
+ procedure Set_Response (B : access Button;
+ R : in Button_Response_Ptr);
+
+ procedure Default_Response (B : access Button);
+
+ Emergency_Call : Boolean := False;
+
+ procedure Emergency (B : access C3A0005_0.Button);
+
+ type Button is
+ record
+ Response : Button_Response_Ptr
+ := Default_Response'Access;
+ end record;
+
+end C3A0005_0;
+
+
+-----------------------------------------------------------------------------
+
+with TCTouch;
+package body C3A0005_0 is
+
+ procedure Push (B : access Button) is
+ begin
+ TCTouch.Touch( 'P' ); --------------------------------------------- P
+ -- Invoking subprogram designated by access value
+ B.Response (B);
+ end Push;
+
+
+ procedure Set_Response (B : access Button;
+ R : in Button_Response_Ptr) is
+ begin
+ TCTouch.Touch( 'S' ); --------------------------------------------- S
+ -- Set procedure value in record
+ B.Response := R;
+ end Set_Response;
+
+
+ procedure Default_Response (B : access Button) is
+ begin
+ TCTouch.Touch( 'D' ); --------------------------------------------- D
+ Default_Call := True;
+ end Default_Response;
+
+
+ procedure Emergency (B : access C3A0005_0.Button) is
+ begin
+ TCTouch.Touch( 'E' ); --------------------------------------------- E
+ Emergency_Call := True;
+ end Emergency;
+
+end C3A0005_0;
+
+
+-----------------------------------------------------------------------------
+
+with TCTouch;
+with Report;
+
+with C3A0005_0;
+
+procedure C3A0005 is
+
+ Big_Red_Button : aliased C3A0005_0.Button;
+
+begin
+
+ Report.Test ("C3A0005", "Check that access to subprogram may be "
+ & "stored within data structures, and that the "
+ & "access to subprogram can subsequently be called");
+
+ C3A0005_0.Push (Big_Red_Button'Access);
+ TCTouch.Validate("PD", "Using default value");
+ TCTouch.Assert( C3A0005_0.Default_Call, "Default Call" );
+
+ -- set Emergency value in Button.Response
+ C3A0005_0.Set_Response(Big_Red_Button'Access, C3A0005_0.Emergency'Access);
+
+ C3A0005_0.Push (Big_Red_Button'Access);
+ TCTouch.Validate("SPE", "After set to Emergency value");
+ TCTouch.Assert( C3A0005_0.Emergency_Call, "Emergency Call");
+
+ Report.Result;
+
+end C3A0005;