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1994-05-19
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96 lines
------------------------------------------------------------------------------
-- --
-- GNAT RUNTIME COMPONENTS --
-- --
-- I O --
-- --
-- B o d y --
-- --
-- $Revision: 1.2 $ --
-- --
-- Copyright (c) 1992,1993,1994 NYU, All Rights Reserved --
-- --
-- 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, 675 Mass Ave, Cambridge, MA 02139, USA. --
-- --
------------------------------------------------------------------------------
package body 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 IO;