gcc/testsuite/gm2/pim/pass/stdio.mod

   1 (* Copyright (C) 2015 Free Software Foundation, Inc.  *)
   2 (* This file is part of GNU Modula-2.
   3
   4 GNU Modula-2 is free software; you can redistribute it and/or modify it under
   5 the terms of the GNU General Public License as published by the Free
   6 Software Foundation; either version 3, or (at your option) any later
   7 version.
   8
   9 GNU Modula-2 is distributed in the hope that it will be useful, but WITHOUT ANY
  10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 for more details.
  13
  14 You should have received a copy of the GNU General Public License along
  15 with gm2; see the file COPYING.  If not, write to the Free Software
  16 Foundation, 51 Franklin Street, Fifth Floor,
  17 Boston, MA 02110-1301, USA.  *)
  18
  19 MODULE stdio ;   (*!m2pim*)
  20
  21 CONST
  22    MaxStack = 40 ;
  23
  24 TYPE
  25    ProcWrite = PROCEDURE (CHAR) ;
  26
  27 VAR
  28    StackW   : ARRAY [0..MaxStack] OF ProcWrite ;
  29    StackWPtr: CARDINAL ;
  30
  31
  32 PROCEDURE write (ch: CHAR) ;
  33 BEGIN
  34
  35 END write ;
  36
  37
  38 PROCEDURE PushOutput (p: ProcWrite) ;
  39 BEGIN
  40    IF StackWPtr=MaxStack
  41    THEN
  42       HALT
  43    ELSE
  44       INC(StackWPtr) ;
  45       StackW[StackWPtr] := p
  46    END
  47 END PushOutput ;
  48
  49
  50 BEGIN
  51    StackWPtr := 0 ;
  52    PushOutput(write)
  53 END stdio.