1  /* Gmcrts.c implements case and return exceptions.
       2  
       3  Copyright (C) 2016-2023 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