(* Copyright (C) 2009 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 2, 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 setequiv ;

TYPE
   Enum = (A, B, C, D);
   Typ = [B..D];

VAR
   typ : Typ;
   styp: SET OF Typ;
BEGIN
   IF typ = A
   THEN
      typ := B
   END ;
   IF A IN styp  (* should cause a failure *)
   THEN
      typ := B
   END
END setequiv.