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proviso.hh

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00001 // Copyright (C) 2006  Laboratoire d'Informatique de Paris 6 (LIP6),
00002 // département Systèmes Répartis Coopératifs (SRC), Université Pierre
00003 // et Marie Curie.
00004 //
00005 // This file is part of Spot, a model checking library.
00006 //
00007 // Spot is free software; you can redistribute it and/or modify it
00008 // under the terms of the GNU General Public License as published by
00009 // the Free Software Foundation; either version 2 of the License, or
00010 // (at your option) any later version.
00011 //
00012 // Spot is distributed in the hope that it will be useful, but WITHOUT
00013 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
00014 // or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
00015 // License for more details.
00016 //
00017 // You should have received a copy of the GNU General Public License
00018 // along with Spot; see the file COPYING.  If not, write to the Free
00019 // Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
00020 // 02111-1307, USA.
00021 
00022 #ifndef SPOT_TGBA_PROVISO_HH
00023 # define SPOT_TGBA_PROVISO_HH
00024 
00025 #include "succiter.hh"
00026 
00027 namespace spot
00028 {
00029   class proviso
00030   {
00031   public:
00032     virtual bool empty() const = 0;
00033     virtual void intersect(const proviso*) = 0;
00034     virtual tgba_succ_iterator* oneset() = 0;
00035     virtual ~proviso();
00036   };
00037 
00038   class dummy_proviso : public proviso
00039   {
00040   public:
00041     static dummy_proviso* instance();
00042     virtual bool empty() const;
00043     virtual void intersect(const proviso*);
00044     virtual tgba_succ_iterator* oneset();
00045     virtual ~dummy_proviso();
00046   private:
00047     dummy_proviso();
00048   };
00049 }
00050 
00051 #endif // SPOT_TGBA_PROVISO_HH

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