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1996-01-30
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------------------------------------------------------------------------------
-- --
-- GNAT RUNTIME COMPONENTS --
-- --
-- S Y S T E M . I O --
-- --
-- B o d y --
-- --
-- $Revision: 1.3 $ --
-- --
-- Copyright (c) 1992,1993,1994 NYU, All Rights Reserved --
-- --
-- The GNAT library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU Library General Public License as published by --
-- the Free Software Foundation; either version 2, or (at your option) any --
-- later version. The GNAT library is distributed in the hope that it will --
-- be useful, but WITHOUT ANY WARRANTY; without even the implied warranty --
-- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- Library General Public License for more details. You should have --
-- received a copy of the GNU Library General Public License along with --
-- the GNAT library; see the file COPYING.LIB. If not, write to the Free --
-- Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. --
-- --
------------------------------------------------------------------------------
package body System.IO is
procedure Get (X : out Integer) is
function Getint return Integer;
pragma Interface (C, Getint);
pragma Interface_Name (Getint, "get_int");
begin
X := Getint;
end Get;
procedure Put (X : Integer) is
procedure Putint (X : Integer);
pragma Interface (C, Putint);
pragma Interface_Name (Putint, "put_int");
begin
Putint (X);
end Put;
procedure Get (C : out Character) is
function Getchar return Character;
pragma Interface (C, Getchar);
begin
C := Getchar;
end Get;
procedure Put (C : Character) is
procedure Putchar (C : Character);
pragma Interface (C, Putchar);
begin
Putchar (C);
end Put;
procedure Put (S : String) is
begin
for I in S'Range loop
Put (S (I));
end loop;
end Put;
procedure Put_Line (S : String) is
begin
Put (S);
New_Line;
end Put_Line;
procedure New_Line (Spacing : Positive := 1) is
begin
for I in 1 .. Spacing loop
Put (Ascii.LF);
end loop;
end New_Line;
procedure Get_Line (Item : in out String; Last : out Natural) is
I_Length : Integer := Item'Length;
Nstore : Integer := 0;
C : Character;
begin
loop
Get (C);
exit when Nstore = I_Length;
if C = Ascii.Lf then
exit;
end if;
Item (Item'First + Nstore) := C;
Nstore := Nstore + 1;
end loop;
Last := Item'First + Nstore - 1;
end Get_Line;
end System.IO;