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------------------------------------------------------------------------------
-- --
-- GNAT RUNTIME COMPONENTS --
-- --
-- G N A T . I O --
-- --
-- S p e c --
-- --
-- Copyright (C) 1995-2002 Ada Core Technologies, 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, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, 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. --
-- --
------------------------------------------------------------------------------
-- A simple preelaborable subset of Text_IO capabilities
-- A simple text I/O package that can be used for simple I/O functions in
-- user programs as required. This package is also preelaborated, unlike
-- Text_IO, and can thus be with'ed by preelaborated library units.
-- Note that Data_Error is not raised by these subprograms for bad data.
-- If such checks are needed then the regular Text_IO package must be used.
package GNAT.IO is
pragma Preelaborate (IO);
type File_Type is limited private;
-- Specifies file to be used (the only possibilities are Standard_Output
-- and Standard_Error). There is no Create or Open facility that would
-- allow more general use of file names.
function Standard_Output return File_Type;
function Standard_Error return File_Type;
-- These functions are the only way to get File_Type values
procedure Get (X : out Integer);
procedure Get (C : out Character);
procedure Get_Line (Item : out String; Last : out Natural);
-- These routines always read from Standard_Input
procedure Put (File : File_Type; X : Integer);
procedure Put (X : Integer);
-- Output integer to specified file, or to current output file, same
-- output as if Ada.Text_IO.Integer_IO had been instantiated for Integer.
procedure Put (File : File_Type; C : Character);
procedure Put (C : Character);
-- Output character to specified file, or to current output file
procedure Put (File : File_Type; S : String);
procedure Put (S : String);
-- Output string to specified file, or to current output file
procedure Put_Line (File : File_Type; S : String);
procedure Put_Line (S : String);
-- Output string followed by new line to specified file, or to
-- current output file.
procedure New_Line (File : File_Type; Spacing : Positive := 1);
procedure New_Line (Spacing : Positive := 1);
-- Output new line character to specified file, or to current output file
procedure Set_Output (File : File_Type);
-- Set current output file, default is Standard_Output if no call to
-- Set_Output is made.
private
type File_Type is (Stdout, Stderr);
-- Stdout = Standard_Output, Stderr = Standard_Error
pragma Inline (Standard_Error);
pragma Inline (Standard_Output);
end GNAT.IO;
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