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(* Copyright (C) 2015 Free Software Foundation, Inc. *)
(* This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GNU Modula-2 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 General Public License
for more details.
You should have received a copy of the GNU General Public License along
with gm2; see the file COPYING. If not, write to the Free Software
Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. *)
MODULE stdio ; (*!m2pim*)
CONST
MaxStack = 40 ;
TYPE
ProcWrite = PROCEDURE (CHAR) ;
VAR
StackW : ARRAY [0..MaxStack] OF ProcWrite ;
StackWPtr: CARDINAL ;
PROCEDURE write (ch: CHAR) ;
BEGIN
END write ;
PROCEDURE PushOutput (p: ProcWrite) ;
BEGIN
IF StackWPtr=MaxStack
THEN
HALT
ELSE
INC(StackWPtr) ;
StackW[StackWPtr] := p
END
END PushOutput ;
BEGIN
StackWPtr := 0 ;
PushOutput(write)
END stdio.
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