gcc/m2/mc-boot-ch/Gmcrts.c

   1 /* Gmcrts.c implements case and return exceptions.
   2
   3 Copyright (C) 2016-2024 Free Software Foundation, Inc.
   4 Contributed by Gaius Mulley <gaius@glam.ac.uk>.
   5
   6 This file is part of GNU Modula-2.
   7
   8 GNU Modula-2 is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GNU Modula-2 is distributed in the hope that it will be useful, but
  14 WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU Modula-2; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 #include "config.h"
  23 #include "system.h"
  24
  25 #   ifdef __cplusplus
  26 extern "C" {
  27 #   endif
  28
  29 void
  30 CaseException (const char *s, unsigned int high, unsigned int lineno)
  31 {
  32   fprintf (stderr, "%s:%d:case statement has no matching selection\n", s,
  33            lineno);
  34   _exit (1);
  35 }
  36
  37 void
  38 ReturnException (const char *s, unsigned int high, unsigned int lineno)
  39 {
  40   fprintf (stderr, "%s:%d:procedure function is about to finish and no return "
  41                    "statement has been executed\n",
  42            s, lineno);
  43   _exit (1);
  44 }
  45
  46 void _throw (int n)
  47 {
  48   fprintf (stderr, "throw called (%d)\n", n);
  49   _exit (1);
  50 }
  51
  52 #   ifdef __cplusplus
  53 }
  54 #   endif