| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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; |
