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-- FC51D00.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.
--*
--
-- FOUNDATION DESCRIPTION:
-- This foundation defines a generic list abstraction. List elements can
-- be of any (nonlimited) type. Lists are implemented as arrays of
-- pointers and are only two elements in length.
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
--
--!
generic
type Element_Type (<>) is private;
package FC51D00 is -- This package simulates a generic list abstraction.
-- The definition of List_Type below is purely artificial; its validity
-- in the context of the abstraction is irrelevant to the feature being
-- tested.
type Element_Ptr is access Element_Type;
subtype List_Size is Natural range 1 .. 2;
type List_Type is array (List_Size) of Element_Ptr;
function View_Element (I : List_Size; L : List_Type) return Element_Type;
procedure Write_Element (I : in List_Size;
L : in out List_Type;
E : in Element_Type);
-- ... Other list operations for Element_Type.
end FC51D00;
--==================================================================--
package body FC51D00 is
-- The implementations of the operations below are purely artificial; the
-- validity of their implementations in the context of the abstraction is
-- irrelevant to the feature being tested.
function View_Element (I : List_Size; L : List_Type) return Element_Type is
begin
return L(I).all;
end View_Element;
procedure Write_Element (I : in List_Size;
L : in out List_Type;
E : in Element_Type) is
begin
L(I) := new Element_Type'(E);
end Write_Element;
end FC51D00;
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