-- F730A000.A
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-- F730A000.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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-- FOUNDATION DESCRIPTION:
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-- FOUNDATION DESCRIPTION:
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-- This file simulates a generic linked list abstraction for use in tests
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-- This file simulates a generic linked list abstraction for use in tests
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-- covering tagged types and type extensions.
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-- covering tagged types and type extensions.
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--
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--
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-- TEST FILES:
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-- TEST FILES:
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-- This foundation consists of the following files:
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-- This foundation consists of the following files:
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--
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--
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-- => F730A000.A
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-- => F730A000.A
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-- F730A001.A
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-- F730A001.A
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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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-- 03 Aug 96 SAIC ACVC 2.1: Modified prologue. Added pragma
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-- 03 Aug 96 SAIC ACVC 2.1: Modified prologue. Added pragma
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-- Elaborate_Body. Removed extraneous record
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-- Elaborate_Body. Removed extraneous record
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-- extension.
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-- extension.
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--
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--
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--!
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--!
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generic -- Singly-linked list abstraction.
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generic -- Singly-linked list abstraction.
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type Parent_Type is tagged private; -- Actual is parent
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type Parent_Type is tagged private; -- Actual is parent
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package F730A000 is -- tagged type.
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package F730A000 is -- tagged type.
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pragma Elaborate_Body;
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pragma Elaborate_Body;
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-- Declarations for private linked list nodes:
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-- Declarations for private linked list nodes:
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type Priv_Node_Type is new Parent_Type with private; -- Private extension
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type Priv_Node_Type is new Parent_Type with private; -- Private extension
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-- of parent type.
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-- of parent type.
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-- Inherits primitive operations of actual parameter corresponding
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-- Inherits primitive operations of actual parameter corresponding
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-- to Parent_Type.
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-- to Parent_Type.
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type Priv_Node_Ptr is access Priv_Node_Type;
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type Priv_Node_Ptr is access Priv_Node_Type;
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-- Add node at head of list.
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-- Add node at head of list.
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procedure Add (Item : in Priv_Node_Ptr;
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procedure Add (Item : in Priv_Node_Ptr;
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Head : in out Priv_Node_Ptr);
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Head : in out Priv_Node_Ptr);
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-- Remove node from head of list and return it.
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-- Remove node from head of list and return it.
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procedure Remove (Head : in out Priv_Node_Ptr;
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procedure Remove (Head : in out Priv_Node_Ptr;
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Item : out Priv_Node_Ptr);
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Item : out Priv_Node_Ptr);
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private
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private
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type Priv_Node_Type is new Parent_Type with record
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type Priv_Node_Type is new Parent_Type with record
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Next : Priv_Node_Ptr := null;
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Next : Priv_Node_Ptr := null;
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end record;
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end record;
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end F730A000;
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end F730A000;
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--==================================================================--
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--==================================================================--
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package body F730A000 is -- Singly-linked list abstraction.
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package body F730A000 is -- Singly-linked list abstraction.
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procedure Add (Item : in Priv_Node_Ptr;
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procedure Add (Item : in Priv_Node_Ptr;
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Head : in out Priv_Node_Ptr) is
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Head : in out Priv_Node_Ptr) is
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begin
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begin
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if Item /= null then
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if Item /= null then
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Item.Next := Head;
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Item.Next := Head;
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Head := Item;
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Head := Item;
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end if;
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end if;
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end Add;
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end Add;
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procedure Remove (Head : in out Priv_Node_Ptr;
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procedure Remove (Head : in out Priv_Node_Ptr;
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Item : out Priv_Node_Ptr) is
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Item : out Priv_Node_Ptr) is
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begin
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begin
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Item := Head;
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Item := Head;
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if Head /= null then
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if Head /= null then
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Head := Head.Next;
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Head := Head.Next;
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end if;
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end if;
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end Remove;
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end Remove;
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end F730A000;
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end F730A000;
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