------------------------------------------------------------------------------
--                                                                          --
--                         GNAT RUNTIME COMPONENTS                          --
--                                                                          --
--                       S Y S T E M . P A C K _ 4 2                        --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--                                                                          --
--          Copyright (C) 1992-1999 Free Software Foundation, Inc.          --
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-- GNAT is free software;  you can  redistribute it  and/or modify it under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
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-- MA 02111-1307, USA.                                                      --
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-- As a special exception,  if other files  instantiate  generics from this --
-- unit, or you link  this unit with other files  to produce an executable, --
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-- covered by the  GNU Public License.                                      --
--                                                                          --
-- GNAT was originally developed  by the GNAT team at  New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc.      --
--                                                                          --
------------------------------------------------------------------------------

--  Handling of packed arrays with Component_Size = 42

package System.Pack_42 is
pragma Preelaborate (Pack_42);

   Bits : constant := 42;

   type Bits_42 is mod 2 ** Bits;
   for Bits_42'Size use Bits;

   function Get_42 (Arr : System.Address; N : Natural) return Bits_42;
   --  Arr is the address of the packed array, N is the zero-based
   --  subscript. This element is extracted and returned.

   procedure Set_42 (Arr : System.Address; N : Natural; E : Bits_42);
   --  Arr is the address of the packed array, N is the zero-based
   --  subscript. This element is set to the given value.

   function GetU_42 (Arr : System.Address; N : Natural) return Bits_42;
   --  Arr is the address of the packed array, N is the zero-based
   --  subscript. This element is extracted and returned. This version
   --  is used when Arr may represent an unaligned address.

   procedure SetU_42 (Arr : System.Address; N : Natural; E : Bits_42);
   --  Arr is the address of the packed array, N is the zero-based
   --  subscript. This element is set to the given value. This version
   --  is used when Arr may represent an unaligned address

end System.Pack_42;
