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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- S Y S T E M . I O --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2006, Free Software Foundation, 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, 51 Franklin Street, Fifth Floor, --
-- Boston, MA 02110-1301, 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. --
-- --
------------------------------------------------------------------------------
package body System.IO is
Current_Out : File_Type := Stdout;
pragma Atomic (Current_Out);
-- Current output file (modified by Set_Output)
--------------
-- New_Line --
--------------
procedure New_Line (Spacing : Positive := 1) is
begin
for J in 1 .. Spacing loop
Put (ASCII.LF);
end loop;
end New_Line;
---------
-- Put --
---------
procedure Put (X : Integer) is
procedure Put_Int (X : Integer);
pragma Import (C, Put_Int, "put_int");
procedure Put_Int_Err (X : Integer);
pragma Import (C, Put_Int_Err, "put_int_stderr");
begin
case Current_Out is
when Stdout =>
Put_Int (X);
when Stderr =>
Put_Int_Err (X);
end case;
end Put;
procedure Put (C : Character) is
procedure Put_Char (C : Character);
pragma Import (C, Put_Char, "put_char");
procedure Put_Char_Stderr (C : Character);
pragma Import (C, Put_Char_Stderr, "put_char_stderr");
begin
case Current_Out is
when Stdout =>
Put_Char (C);
when Stderr =>
Put_Char_Stderr (C);
end case;
end Put;
procedure Put (S : String) is
begin
for J in S'Range loop
Put (S (J));
end loop;
end Put;
--------------
-- Put_Line --
--------------
procedure Put_Line (S : String) is
begin
Put (S);
New_Line;
end Put_Line;
---------------------
-- Standard_Output --
---------------------
function Standard_Output return File_Type is
begin
return Stdout;
end Standard_Output;
--------------------
-- Standard_Error --
--------------------
function Standard_Error return File_Type is
begin
return Stderr;
end Standard_Error;
----------------
-- Set_Output --
----------------
procedure Set_Output (File : File_Type) is
begin
Current_Out := File;
end Set_Output;
end System.IO;
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