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   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --                            S Y S T E M _ I O                             --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   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 --  A simple text I/O package, used for diagnostic output in the runtime,
  33 --  This package is also preelaborated, unlike Text_Io, and can thus be
  34 --  with'ed by preelaborated library units. It includes only Put routines
  35 --  for character, integer, string and a new line function
  36
  37 package System.IO is
  38    pragma Preelaborate;
  39
  40    procedure Put (X : Integer);
  41
  42    procedure Put (C : Character);
  43
  44    procedure Put (S : String);
  45    procedure Put_Line (S : String);
  46
  47    procedure New_Line (Spacing : Positive := 1);
  48
  49    type File_Type is limited private;
  50
  51    function Standard_Error return File_Type;
  52    function Standard_Output return File_Type;
  53
  54    procedure Set_Output (File : File_Type);
  55
  56 private
  57
  58    type File_Type is (Stdout, Stderr);
  59    --  Stdout = Standard_Output, Stderr = Standard_Error
  60
  61    pragma Inline (Standard_Error);
  62    pragma Inline (Standard_Output);
  63
  64 end System.IO;