| (* 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 teststdio ; (*!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 teststdio. |