gcc/ada/a-storio.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --                       A D A . S T O R A G E _ I O                        --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --
  10 --                                                                          --
  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- --
  13 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31
  32 with Ada.Unchecked_Conversion;
  33
  34 package body Ada.Storage_IO is
  35
  36    type Buffer_Ptr is access all Buffer_Type;
  37    type Elmt_Ptr   is access all Element_Type;
  38
  39    function To_Buffer_Ptr is
  40      new Ada.Unchecked_Conversion (Elmt_Ptr, Buffer_Ptr);
  41
  42    ----------
  43    -- Read --
  44    ----------
  45
  46    procedure Read (Buffer : Buffer_Type; Item : out Element_Type) is
  47    begin
  48       To_Buffer_Ptr (Item'Unrestricted_Access).all := Buffer;
  49    end Read;
  50
  51    -----------
  52    -- Write --
  53    -----------
  54
  55    procedure Write (Buffer : out Buffer_Type; Item : Element_Type) is
  56    begin
  57       Buffer := To_Buffer_Ptr (Item'Unrestricted_Access).all;
  58    end Write;
  59
  60 end Ada.Storage_IO;