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-------------------------------------------------------------------------------
--- --
--- GNAT RUN-TIME COMPONENTS --
--- --
--- S Y S T E M . P A C K _ 2 1 --
--- --
--- S p e c --
--- --
--- Copyright (C) 1992-2005, Free Software Foundation, Inc. --
--- --
--- 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- --
--- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
--- Boston, MA 02110-1301, USA. --
--- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- 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 = 21
-
-package System.Pack_21 is
- pragma Preelaborate;
-
- Bits : constant := 21;
-
- type Bits_21 is mod 2 ** Bits;
- for Bits_21'Size use Bits;
-
- function Get_21 (Arr : System.Address; N : Natural) return Bits_21;
- -- Arr is the address of the packed array, N is the zero-based
- -- subscript. This element is extracted and returned.
-
- procedure Set_21 (Arr : System.Address; N : Natural; E : Bits_21);
- -- Arr is the address of the packed array, N is the zero-based
- -- subscript. This element is set to the given value.
-
-end System.Pack_21;