gomp-20050608-branch/gcc/testsuite/ada/acats/support/f393b00.a

   1 -- F393B00.A
   2  -- Alert_Foundation
   3  --
   4 --                             Grant of Unlimited Rights
   5 --
   6 --     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
   7 --     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
   8 --     unlimited rights in the software and documentation contained herein.
   9 --     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making
  10 --     this public release, the Government intends to confer upon all
  11 --     recipients unlimited rights  equal to those held by the Government.
  12 --     These rights include rights to use, duplicate, release or disclose the
  13 --     released technical data and computer software in whole or in part, in
  14 --     any manner and for any purpose whatsoever, and to have or permit others
  15 --     to do so.
  16 --
  17 --                                    DISCLAIMER
  18 --
  19 --     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
  20 --     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
  21 --     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
  22 --     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
  23 --     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
  24 --     PARTICULAR PURPOSE OF SAID MATERIAL.
  25 --*
  26  --
  27  -- FOUNDATION DESCRIPTION:
  28  --      This package declares three abstract types for use in C660 series
  29  --      tests, Alert, Special_Alert, and Private_Alert.
  30  --      It models (in miniature) an application situation in which an
  31  --      abstraction is defined in terms of structure (record and operations
  32  --      on the record) but not in terms of content (record is null).  It
  33  --      also models a situation in which an abstraction includes some
  34  --      specific, implementation dependent, information.
  35  --
  36 -- CHANGE HISTORY:
  37 --      06 Dec 94   SAIC    ACVC 2.0
  38 --
  39  --!
  40
  41  package F393B00 is
  42     type Alert is abstract tagged null record;  -- abstract type
  43                                                 -- see procedure Handle below
  44
  45     procedure Handle (A : in out Alert) is abstract;
  46                                                 -- abstract procedure,
  47                                                 -- explicitly declared
  48
  49
  50     type Private_Alert is abstract tagged private;
  51
  52     procedure Handle (PA : in out Private_Alert) is abstract;
  53                                                 -- ensures that Private_Alert
  54                                                 -- is visibly abstract
  55
  56
  57     type Status_Kind is (Practice, Real, Dont_Care);
  58     type Urgency_Kind is (Low, Medium, High);
  59
  60     type Practice_Alert is new Alert with record
  61       Status : Status_Kind := Dont_Care;
  62       Urgency : Urgency_Kind := Low;
  63     end record;
  64
  65     procedure Handle (PA : in out Practice_Alert);
  66                                                 -- overrides inherited Handle
  67
  68
  69
  70     type Device is (Teletype, Console, Big_Screen);
  71
  72     type Special_Alert (Age : Integer) is
  73       abstract new Practice_Alert with record
  74         Display : Device;
  75       end record;
  76
  77     procedure Handle (SA : in out Special_Alert) is abstract;
  78                                                 -- overrides inherited Handle
  79
  80  private
  81     subtype Implementation_Detail is Integer range 1..10;
  82
  83     type Private_Alert is abstract tagged record
  84       Private_Field : Implementation_Detail := 1;
  85     end record;
  86
  87
  88  end F393B00;
  89
  90  --=======================================================================--
  91
  92  package body F393B00 is
  93
  94       procedure Handle (PA : in out Practice_Alert) is
  95         begin
  96           PA.Status := Real;
  97           PA.Urgency := Medium;
  98         end Handle;
  99
 100  end F393B00;
 101