gcc/testsuite/ada/acats/tests/c3/c3900060.a

   1 -- C3900060.A
   2 --
   3 --                             Grant of Unlimited Rights
   4 --
   5 --     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
   6 --     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
   7 --     unlimited rights in the software and documentation contained herein.
   8 --     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making
   9 --     this public release, the Government intends to confer upon all
  10 --     recipients unlimited rights  equal to those held by the Government.
  11 --     These rights include rights to use, duplicate, release or disclose the
  12 --     released technical data and computer software in whole or in part, in
  13 --     any manner and for any purpose whatsoever, and to have or permit others
  14 --     to do so.
  15 --
  16 --                                    DISCLAIMER
  17 --
  18 --     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
  19 --     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
  20 --     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
  21 --     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
  22 --     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
  23 --     PARTICULAR PURPOSE OF SAID MATERIAL.
  24 --*
  25 --
  26 -- OBJECTIVE:
  27 --      See C3900063.AM.
  28 --
  29 -- TEST DESCRIPTION:
  30 --      See C3900063.AM.
  31 --
  32 -- TEST FILES:
  33 --      This test consists of the following files:
  34 --
  35 --      => C3900060.A
  36 --         C3900061.A
  37 --         C3900062.A
  38 --         C3900063.AM
  39 --
  40 --
  41 -- CHANGE HISTORY:
  42 --      06 Dec 94   SAIC    ACVC 2.0
  43 --      04 Jun 96   SAIC    ACVC 2.1: Modified prologue. Added pragma Elaborate
  44 --                          for Ada.Calendar.
  45 --
  46 --!
  47
  48 with Ada.Calendar;
  49 pragma Elaborate (Ada.Calendar);
  50
  51 package C3900060 is  -- Alert system abstraction.
  52
  53
  54    -- Declarations used by component Arrival_Time.
  55
  56    Default_Time : constant Ada.Calendar.Time :=
  57                     Ada.Calendar.Time_Of (1901, 1, 1);
  58    Alert_Time   : constant Ada.Calendar.Time :=
  59                     Ada.Calendar.Time_Of (1991, 6, 15);
  60
  61
  62    -- Declarations used by component Display_On and procedure Display.
  63
  64    type Device_Enum      is (Null_Device, Teletype, Console, Big_Screen);
  65    type Display_Counters is array (Device_Enum) of Natural;
  66
  67    Display_Count_For : Display_Counters := (others => 0);
  68
  69
  70
  71    type Alert_Type is tagged private;                 -- Root tagged type.
  72
  73    procedure Set_Display (A : in out Alert_Type;      -- To be inherited by
  74                           D : in     Device_Enum);    -- all derivatives.
  75
  76    procedure Display (A : in Alert_Type);             -- To be inherited by
  77                                                       -- all derivatives.
  78
  79    procedure Handle (A : in out Alert_Type);          -- To be overridden by
  80                                                       -- all derivatives.
  81
  82
  83    -- The following functions are needed to verify the values of the
  84    -- root tagged type's private components.
  85
  86    function Get_Time (A: Alert_Type) return Ada.Calendar.Time;
  87
  88    function Get_Display (A: Alert_Type) return Device_Enum;
  89
  90    function Initial_Values_Okay (A : in Alert_Type)
  91      return Boolean;
  92
  93    function Bad_Final_Values (A : in Alert_Type)
  94      return Boolean;
  95
  96 private
  97
  98    type Alert_Type is tagged record                    -- Root tagged type.
  99       Arrival_Time : Ada.Calendar.Time := Default_Time;
 100       Display_On   : Device_Enum   := Null_Device;
 101    end record;
 102
 103
 104 end C3900060;
 105
 106
 107      --==================================================================--
 108
 109
 110 package body C3900060 is
 111
 112
 113    procedure Set_Display (A : in out Alert_Type;
 114                           D : in     Device_Enum) is
 115    begin
 116       A.Display_On := D;
 117    end Set_Display;
 118
 119
 120    procedure Display (A : in Alert_Type) is
 121    begin
 122       Display_Count_For (A.Display_On) := Display_Count_For (A.Display_On) + 1;
 123    end Display;
 124
 125
 126    procedure Handle (A : in out Alert_Type) is
 127    begin
 128       A.Arrival_Time := Alert_Time;
 129       Display (A);
 130    end Handle;
 131
 132
 133    function Get_Time (A: Alert_Type) return Ada.Calendar.Time is
 134    begin
 135       return A.Arrival_Time;
 136    end Get_Time;
 137
 138
 139    function Get_Display (A: Alert_Type) return Device_Enum is
 140    begin
 141       return A.Display_On;
 142    end Get_Display;
 143
 144
 145    function Initial_Values_Okay (A : in Alert_Type) return Boolean is
 146    begin
 147       return (A = (Arrival_Time => Default_Time,         -- Check "=" operator
 148                    Display_On   => Null_Device));        -- availability.
 149    end Initial_Values_Okay;                              -- Aggregate with
 150                                                          -- named associations.
 151
 152    function Bad_Final_Values (A : in Alert_Type) return Boolean is
 153    begin
 154       return (A /= (Alert_Time, Null_Device));           -- Check "/=" operator
 155                                                          -- availability.
 156    end Bad_Final_Values;                                 -- Aggregate with
 157                                                          -- positional assoc.
 158
 159 end C3900060;