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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- G N A T . I O --
-- --
-- B o d y --
-- --
-- Copyright (C) 1995-2022, AdaCore --
-- --
-- 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 3, 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. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
package body GNAT.IO is
Current_Out : File_Type := Stdout;
pragma Atomic (Current_Out);
-- Current output file (modified by Set_Output)
---------
-- Get --
---------
procedure Get (X : out Integer) is
function Get_Int return Integer;
pragma Import (C, Get_Int, "get_int");
begin
X := Get_Int;
end Get;
procedure Get (C : out Character) is
function Get_Char return Integer;
pragma Import (C, Get_Char, "get_char");
begin
C := Character'Val (Get_Char);
end Get;
--------------
-- Get_Line --
--------------
procedure Get_Line (Item : out String; Last : out Natural) is
C : Character;
begin
for Nstore in Item'Range loop
Get (C);
if C = ASCII.LF then
Last := Nstore - 1;
return;
else
Item (Nstore) := C;
end if;
end loop;
Last := Item'Last;
end Get_Line;
--------------
-- New_Line --
--------------
procedure New_Line (File : File_Type; Spacing : Positive := 1) is
begin
for J in 1 .. Spacing loop
Put (File, ASCII.LF);
end loop;
end New_Line;
procedure New_Line (Spacing : Positive := 1) is
begin
New_Line (Current_Out, Spacing);
end New_Line;
---------
-- Put --
---------
procedure Put (X : Integer) is
begin
Put (Current_Out, X);
end Put;
procedure Put (File : File_Type; X : Integer) is
procedure Put_Int (X : Integer);
pragma Import (C, Put_Int, "put_int");
procedure Put_Int_Stderr (X : Integer);
pragma Import (C, Put_Int_Stderr, "put_int_stderr");
begin
case File is
when Stdout => Put_Int (X);
when Stderr => Put_Int_Stderr (X);
end case;
end Put;
procedure Put (C : Character) is
begin
Put (Current_Out, C);
end Put;
procedure Put (File : File_Type; C : Character) is
procedure Put_Char (C : Integer);
pragma Import (C, Put_Char, "put_char");
procedure Put_Char_Stderr (C : Integer);
pragma Import (C, Put_Char_Stderr, "put_char_stderr");
begin
case File is
when Stdout => Put_Char (Character'Pos (C));
when Stderr => Put_Char_Stderr (Character'Pos (C));
end case;
end Put;
procedure Put (S : String) is
begin
Put (Current_Out, S);
end Put;
procedure Put (File : File_Type; S : String) is
begin
for J in S'Range loop
Put (File, S (J));
end loop;
end Put;
--------------
-- Put_Line --
--------------
procedure Put_Line (S : String) is
begin
Put_Line (Current_Out, S);
end Put_Line;
procedure Put_Line (File : File_Type; S : String) is
begin
Put (File, S);
New_Line (File);
end Put_Line;
----------------
-- Set_Output --
----------------
procedure Set_Output (File : File_Type) is
begin
Current_Out := File;
end Set_Output;
---------------------
-- 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;
end GNAT.IO;
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