gcc/ada/s-pack44.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUNTIME COMPONENTS                          --
   4 --                                                                          --
   5 --                       S Y S T E M . P A C K _ 4 4                        --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-1999 Free Software Foundation, Inc.          --
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  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
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  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
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  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
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  20 -- MA 02111-1307, USA.                                                      --
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  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
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  27 -- covered by the  GNU Public License.                                      --
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  29 -- GNAT was originally developed  by the GNAT team at  New York University. --
  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 --  Handling of packed arrays with Component_Size = 44
  35
  36 package System.Pack_44 is
  37 pragma Preelaborate (Pack_44);
  38
  39    Bits : constant := 44;
  40
  41    type Bits_44 is mod 2 ** Bits;
  42    for Bits_44'Size use Bits;
  43
  44    function Get_44 (Arr : System.Address; N : Natural) return Bits_44;
  45    --  Arr is the address of the packed array, N is the zero-based
  46    --  subscript. This element is extracted and returned.
  47
  48    procedure Set_44 (Arr : System.Address; N : Natural; E : Bits_44);
  49    --  Arr is the address of the packed array, N is the zero-based
  50    --  subscript. This element is set to the given value.
  51
  52    function GetU_44 (Arr : System.Address; N : Natural) return Bits_44;
  53    --  Arr is the address of the packed array, N is the zero-based
  54    --  subscript. This element is extracted and returned. This version
  55    --  is used when Arr may represent an unaligned address.
  56
  57    procedure SetU_44 (Arr : System.Address; N : Natural; E : Bits_44);
  58    --  Arr is the address of the packed array, N is the zero-based
  59    --  subscript. This element is set to the given value. This version
  60    --  is used when Arr may represent an unaligned address
  61
  62 end System.Pack_44;