------------------------------------------------------------------------------ -- -- -- GNAT RUNTIME COMPONENTS -- -- -- -- G N A T . I O -- -- -- -- S p e c -- -- -- -- -- -- Copyright (C) 1995-2001 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 is maintained by Ada Core Technologies Inc (http://www.gnat.com). -- -- -- ------------------------------------------------------------------------------ -- 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 : in 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;