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-- C3A0004.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 array
-- objects, and that the access to subprogram can subsequently
-- be called.
--
-- TEST DESCRIPTION:
-- Declare an access to procedure type in a package specification.
-- Declare an array of the access type. Declare three different
-- procedures that can be referred to by the access to procedure type.
--
-- In the main program, build the array by dereferencing the access
-- value.
--
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
--
--!
with Report;
procedure C3A0004 is
Left_Turn : Integer := 1;
Right_Turn : Integer := 1;
Center_Turn : Integer := 1;
-- Type accesses to any procedure
type Action_Ptr is access procedure;
-- Array of access to procedure
type Action_Array is array (Integer range <>) of Action_Ptr;
procedure Rotate_Left is
begin
Left_Turn := 2;
end Rotate_Left;
procedure Rotate_Right is
begin
Right_Turn := 3;
end Rotate_Right;
procedure Center is
begin
Center_Turn := 0;
end Center;
begin
Report.Test ("C3A0004", "Check that access to subprogram may be "
& "stored within data structures, and that the "
& "access to subprogram can subsequently be called");
------------------------------------------------------------------------
declare
Total_Actions : constant := 3;
Action_Sequence : Action_Array (1 .. Total_Actions);
begin
-- Build the action sequence
Action_Sequence := (Rotate_Left'Access, Center'Access,
Rotate_Right'Access);
-- Assign actions by invoking subprogram designated by access value
for I in Action_Sequence'Range loop
Action_Sequence(I).all;
end loop;
If Left_Turn /= 2 or Right_Turn /= 3
or Center_Turn /= 0 then
Report.Failed ("Incorrect Action sequence result");
end if;
end;
------------------------------------------------------------------------
Report.Result;
end C3A0004;
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