-- CC54002.A
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-- CC54002.A
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--
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--
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-- Grant of Unlimited Rights
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-- Grant of Unlimited Rights
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--
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--
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-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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-- unlimited rights in the software and documentation contained herein.
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-- unlimited rights in the software and documentation contained herein.
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-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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-- this public release, the Government intends to confer upon all
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-- this public release, the Government intends to confer upon all
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-- recipients unlimited rights equal to those held by the Government.
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-- recipients unlimited rights equal to those held by the Government.
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-- These rights include rights to use, duplicate, release or disclose the
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-- These rights include rights to use, duplicate, release or disclose the
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-- released technical data and computer software in whole or in part, in
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-- released technical data and computer software in whole or in part, in
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-- any manner and for any purpose whatsoever, and to have or permit others
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-- any manner and for any purpose whatsoever, and to have or permit others
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-- to do so.
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-- to do so.
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--
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--
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-- DISCLAIMER
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-- DISCLAIMER
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--
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--
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--*
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--
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--
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-- OBJECTIVE:
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-- OBJECTIVE:
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-- Check that a general access-to-variable type may be passed as an
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-- Check that a general access-to-variable type may be passed as an
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-- actual to a generic formal general access-to-variable type. Check that
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-- actual to a generic formal general access-to-variable type. Check that
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-- designated objects may be read and updated through the access value.
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-- designated objects may be read and updated through the access value.
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--
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--
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-- TEST DESCRIPTION:
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-- TEST DESCRIPTION:
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-- The generic implements a List of access objects as an array, which
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-- The generic implements a List of access objects as an array, which
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-- is itself a component of a record. The designated type of the formal
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-- is itself a component of a record. The designated type of the formal
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-- access type is a formal private type declared in the same generic
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-- access type is a formal private type declared in the same generic
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-- formal part.
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-- formal part.
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--
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--
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-- The access objects to be placed in the List are created both
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-- The access objects to be placed in the List are created both
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-- statically and dynamically, utilizing allocators and the 'Access
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-- statically and dynamically, utilizing allocators and the 'Access
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-- attribute.
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-- attribute.
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--
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--
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--
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--
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-- CHANGE HISTORY:
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-- CHANGE HISTORY:
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-- 06 Dec 94 SAIC ACVC 2.0
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-- 06 Dec 94 SAIC ACVC 2.0
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-- 10 Apr 96 SAIC ACVC 2.1: Added pragma Elaborate to context clause
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-- 10 Apr 96 SAIC ACVC 2.1: Added pragma Elaborate to context clause
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-- preceding CC54002_1.
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-- preceding CC54002_1.
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--
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--
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--!
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--!
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generic
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generic
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Size : in Positive;
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Size : in Positive;
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type Element_Type (<>) is private;
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type Element_Type (<>) is private;
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type Element_Ptr is access all Element_Type;
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type Element_Ptr is access all Element_Type;
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package CC54002_0 is -- Generic list of pointers.
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package CC54002_0 is -- Generic list of pointers.
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subtype Index is Positive range 1 .. (Size + 1);
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subtype Index is Positive range 1 .. (Size + 1);
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type List_Array is array (Index) of Element_Ptr;
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type List_Array is array (Index) of Element_Ptr;
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type List_Type is record
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type List_Type is record
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Elements : List_Array;
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Elements : List_Array;
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Next : Index := 1; -- Next available "slot" in list.
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Next : Index := 1; -- Next available "slot" in list.
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end record;
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end record;
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procedure Put (List : in out List_Type;
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procedure Put (List : in out List_Type;
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Elem_Ptr : in Element_Ptr;
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Elem_Ptr : in Element_Ptr;
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Location : in Index);
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Location : in Index);
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procedure Get (List : in out List_Type;
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procedure Get (List : in out List_Type;
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Elem_Ptr : out Element_Ptr;
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Elem_Ptr : out Element_Ptr;
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Location : in Index);
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Location : in Index);
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-- ... Other operations.
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-- ... Other operations.
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end CC54002_0;
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end CC54002_0;
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--===================================================================--
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--===================================================================--
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package body CC54002_0 is
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package body CC54002_0 is
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procedure Put (List : in out List_Type;
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procedure Put (List : in out List_Type;
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Elem_Ptr : in Element_Ptr;
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Elem_Ptr : in Element_Ptr;
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Location : in Index) is
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Location : in Index) is
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begin
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begin
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List.Elements(Location) := Elem_Ptr;
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List.Elements(Location) := Elem_Ptr;
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end Put;
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end Put;
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procedure Get (List : in out List_Type;
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procedure Get (List : in out List_Type;
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Elem_Ptr : out Element_Ptr;
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Elem_Ptr : out Element_Ptr;
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Location : in Index) is
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Location : in Index) is
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begin -- Artificial: no provision for getting "empty" element.
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begin -- Artificial: no provision for getting "empty" element.
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Elem_Ptr := List.Elements(Location);
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Elem_Ptr := List.Elements(Location);
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end Get;
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end Get;
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end CC54002_0;
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end CC54002_0;
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--===================================================================--
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--===================================================================--
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with CC54002_0; -- Generic List of pointers.
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with CC54002_0; -- Generic List of pointers.
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pragma Elaborate (CC54002_0);
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pragma Elaborate (CC54002_0);
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package CC54002_1 is
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package CC54002_1 is
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subtype Lengths is Natural range 0 .. 50;
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subtype Lengths is Natural range 0 .. 50;
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type Subscriber (NLen, ALen: Lengths := 50) is record
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type Subscriber (NLen, ALen: Lengths := 50) is record
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Name : String(1 .. NLen);
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Name : String(1 .. NLen);
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Address : String(1 .. ALen);
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Address : String(1 .. ALen);
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-- ... Other components.
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-- ... Other components.
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end record;
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end record;
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type Subscriber_Ptr is access all Subscriber; -- General access-to-
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type Subscriber_Ptr is access all Subscriber; -- General access-to-
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-- variable type.
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-- variable type.
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package District_Subscription_Lists is new CC54002_0
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package District_Subscription_Lists is new CC54002_0
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(Element_Type => Subscriber,
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(Element_Type => Subscriber,
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Element_Ptr => Subscriber_Ptr,
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Element_Ptr => Subscriber_Ptr,
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Size => 100);
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Size => 100);
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District_01_Subscribers : District_Subscription_Lists.List_Type;
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District_01_Subscribers : District_Subscription_Lists.List_Type;
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New_Subscriber_01 : aliased CC54002_1.Subscriber :=
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New_Subscriber_01 : aliased CC54002_1.Subscriber :=
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(12, 23, "Brown, Silas", "King's Pyland, Dartmoor");
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(12, 23, "Brown, Silas", "King's Pyland, Dartmoor");
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New_Subscriber_02 : aliased CC54002_1.Subscriber :=
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New_Subscriber_02 : aliased CC54002_1.Subscriber :=
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(16, 23, "Hatherly, Victor", "16A Victoria St. London");
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(16, 23, "Hatherly, Victor", "16A Victoria St. London");
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end CC54002_1;
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end CC54002_1;
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-- No body for CC54002_1.
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-- No body for CC54002_1.
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--===================================================================--
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--===================================================================--
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with CC54002_1;
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with CC54002_1;
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with Report;
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with Report;
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procedure CC54002 is
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procedure CC54002 is
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Mod_Subscriber_01 : constant CC54002_1.Subscriber :=
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Mod_Subscriber_01 : constant CC54002_1.Subscriber :=
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(12, 23, "Brown, Silas", "Mapleton, Dartmoor ");
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(12, 23, "Brown, Silas", "Mapleton, Dartmoor ");
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TC_Actual_01, TC_Actual_02 : CC54002_1.Subscriber_Ptr;
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TC_Actual_01, TC_Actual_02 : CC54002_1.Subscriber_Ptr;
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use type CC54002_1.Subscriber; -- "/=" directly visible.
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use type CC54002_1.Subscriber; -- "/=" directly visible.
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begin
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begin
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Report.Test ("CC54002", "Check that a general access-to-variable type " &
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Report.Test ("CC54002", "Check that a general access-to-variable type " &
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"may be passed as an actual to a generic formal " &
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"may be passed as an actual to a generic formal " &
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"access-to-variable type");
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"access-to-variable type");
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-- Add elements to the list:
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-- Add elements to the list:
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CC54002_1.District_Subscription_Lists.Put -- Element created statically.
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CC54002_1.District_Subscription_Lists.Put -- Element created statically.
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(List => CC54002_1.District_01_Subscribers,
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(List => CC54002_1.District_01_Subscribers,
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Elem_Ptr => CC54002_1.New_Subscriber_01'Access,
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Elem_Ptr => CC54002_1.New_Subscriber_01'Access,
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Location => 1);
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Location => 1);
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CC54002_1.District_Subscription_Lists.Put -- Element created dynamically.
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CC54002_1.District_Subscription_Lists.Put -- Element created dynamically.
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(List => CC54002_1.District_01_Subscribers,
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(List => CC54002_1.District_01_Subscribers,
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Elem_Ptr => new CC54002_1.Subscriber'(CC54002_1.New_Subscriber_02),
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Elem_Ptr => new CC54002_1.Subscriber'(CC54002_1.New_Subscriber_02),
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Location => 2);
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Location => 2);
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-- Manipulation of the objects on the list is performed below directly
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-- Manipulation of the objects on the list is performed below directly
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-- through the access objects. Although such manipulation is artificial
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-- through the access objects. Although such manipulation is artificial
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-- from the perspective of this usage model, it is not artificial in
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-- from the perspective of this usage model, it is not artificial in
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-- general and is necessary in order to test the objective.
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-- general and is necessary in order to test the objective.
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-- Modify the first list element through the access object:
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-- Modify the first list element through the access object:
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CC54002_1.District_01_Subscribers.Elements(1).Address := -- Update
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CC54002_1.District_01_Subscribers.Elements(1).Address := -- Update
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"Mapleton, Dartmoor "; -- Implicit dereference. -- through the
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"Mapleton, Dartmoor "; -- Implicit dereference. -- through the
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-- access
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-- access
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-- object.
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-- object.
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-- Retrieve elements of the list:
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-- Retrieve elements of the list:
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CC54002_1.District_Subscription_Lists.Get
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CC54002_1.District_Subscription_Lists.Get
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(CC54002_1.District_01_Subscribers,
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(CC54002_1.District_01_Subscribers,
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TC_Actual_01,
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TC_Actual_01,
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1);
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1);
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CC54002_1.District_Subscription_Lists.Get
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CC54002_1.District_Subscription_Lists.Get
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(CC54002_1.District_01_Subscribers,
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(CC54002_1.District_01_Subscribers,
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TC_Actual_02,
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TC_Actual_02,
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2);
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2);
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-- Verify list contents in two ways: 1st verify the directly-dereferenced
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-- Verify list contents in two ways: 1st verify the directly-dereferenced
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-- access objects against the dereferenced access objects returned by Get;
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-- access objects against the dereferenced access objects returned by Get;
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-- 2nd verify them against objects the expected values:
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-- 2nd verify them against objects the expected values:
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-- Read
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-- Read
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-- through the
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-- through the
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-- access
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-- access
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-- objects.
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-- objects.
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if CC54002_1.District_01_Subscribers.Elements(1).all /= TC_Actual_01.all
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if CC54002_1.District_01_Subscribers.Elements(1).all /= TC_Actual_01.all
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or else
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or else
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CC54002_1.District_01_Subscribers.Elements(2).all /= TC_Actual_02.all
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CC54002_1.District_01_Subscribers.Elements(2).all /= TC_Actual_02.all
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then
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then
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Report.Failed ("Wrong results returned by Get");
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Report.Failed ("Wrong results returned by Get");
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elsif CC54002_1.District_01_Subscribers.Elements(1).all /=
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elsif CC54002_1.District_01_Subscribers.Elements(1).all /=
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Mod_Subscriber_01
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Mod_Subscriber_01
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or
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or
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CC54002_1.District_01_Subscribers.Elements(2).all /=
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CC54002_1.District_01_Subscribers.Elements(2).all /=
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CC54002_1.New_Subscriber_02
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CC54002_1.New_Subscriber_02
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then
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then
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Report.Failed ("List elements do not have expected values");
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Report.Failed ("List elements do not have expected values");
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end if;
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end if;
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Report.Result;
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Report.Result;
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end CC54002;
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end CC54002;
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