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-- C3900061.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:
-- See C3900063.AM.
--
-- TEST DESCRIPTION:
-- See C3900063.AM.
--
-- TEST FILES:
-- This test consists of the following files:
--
-- C3900060.A
-- => C3900061.A
-- C3900062.A
-- C3900063.AM
--
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
-- 04 Jun 96 SAIC ACVC 2.1: Modified prologue. Added pragma Elaborate
-- for Ada.Calendar.
--
--!
with C3900060; -- Alert system abstraction.
package C3900061 is -- Extended alert abstraction.
type Low_Alert_Type is new C3900060.Alert_Type
with private; -- Private extension of
-- root tagged type.
-- Inherits procedure Display from Alert_Type.
procedure Handle (LA : in out Low_Alert_Type); -- Override parent's
-- primitive subprog.
procedure Set_Level (LA : in out Low_Alert_Type; -- To be inherited by
L : in Integer); -- all derivatives.
-- The following functions are needed to verify the values of the
-- extension's private components.
function Get_Level (LA: Low_Alert_Type) return Integer;
function Initial_Values_Okay (LA : in Low_Alert_Type)
return Boolean; -- Override parent's
-- primitive subprog.
function Bad_Final_Values (LA : in Low_Alert_Type) -- Override parent's
return Boolean; -- primitive subprog.
private
type Low_Alert_Type is new C3900060.Alert_Type with record
Level : Integer := 0;
end record;
end C3900061;
--==================================================================--
with Ada.Calendar;
pragma Elaborate (Ada.Calendar);
package body C3900061 is
use C3900060; -- Alert system abstraction.
procedure Set_Level (LA : in out Low_Alert_Type;
L : in Integer) is
begin
LA.Level := L;
end Set_Level;
procedure Handle (LA : in out Low_Alert_Type) is
begin
Handle (Alert_Type (LA)); -- Call parent's operation (type conversion).
Set_Level (LA, 1); -- Call newly declared operation.
Set_Display (Alert_Type(LA),
Teletype); -- Call parent's operation (type conversion).
Display (LA); -- Call inherited operation.
end Handle;
function Get_Level (LA: Low_Alert_Type) return Integer is
begin
return LA.Level;
end Get_Level;
function Initial_Values_Okay (LA : in Low_Alert_Type) return Boolean is
begin
-- Call parent's operation (type conversion).
return (Initial_Values_Okay (Alert_Type (LA)) and
LA.Level = 0);
end Initial_Values_Okay;
function Bad_Final_Values (LA : in Low_Alert_Type) return Boolean is
use type Ada.Calendar.Time;
begin
return (Get_Time(LA) /= Alert_Time or
Get_Display(LA) /= Teletype or
LA.Level /= 1);
end Bad_Final_Values;
end C3900061;