spot  0.8.1
binop.hh
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00001 // Copyright (C) 2009, 2010 Laboratoire de Recherche et Développement
00002 // de l'Epita (LRDE).
00003 // Copyright (C) 2003, 2004 Laboratoire d'Informatique de Paris
00004 // 6 (LIP6), département Systèmes Répartis Coopératifs (SRC),
00005 // Université Pierre et Marie Curie.
00006 //
00007 // This file is part of Spot, a model checking library.
00008 //
00009 // Spot is free software; you can redistribute it and/or modify it
00010 // under the terms of the GNU General Public License as published by
00011 // the Free Software Foundation; either version 2 of the License, or
00012 // (at your option) any later version.
00013 //
00014 // Spot is distributed in the hope that it will be useful, but WITHOUT
00015 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
00016 // or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
00017 // License for more details.
00018 //
00019 // You should have received a copy of the GNU General Public License
00020 // along with Spot; see the file COPYING.  If not, write to the Free
00021 // Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
00022 // 02111-1307, USA.
00023 
00029 #ifndef SPOT_LTLAST_BINOP_HH
00030 # define SPOT_LTLAST_BINOP_HH
00031 
00032 #include <map>
00033 #include <iosfwd>
00034 #include "refformula.hh"
00035 
00036 namespace spot
00037 {
00038   namespace ltl
00039   {
00040 
00043     class binop : public ref_formula
00044     {
00045     public:
00050       enum type { Xor,
00051                   Implies,
00052                   Equiv,
00053                   U, //< until
00054                   R, //< release (dual of until)
00055                   W, //< weak until
00056                   M  //< strong release (dual of weak until)
00057       };
00058 
00061       static binop* instance(type op, formula* first, formula* second);
00062 
00063       virtual void accept(visitor& v);
00064       virtual void accept(const_visitor& v) const;
00065 
00067       const formula* first() const;
00069       formula* first();
00071       const formula* second() const;
00073       formula* second();
00074 
00076       type op() const;
00078       const char* op_name() const;
00079 
00081       virtual std::string dump() const;
00082 
00084       static unsigned instance_count();
00085 
00087       static std::ostream& dump_instances(std::ostream& os);
00088 
00089     protected:
00090       typedef std::pair<formula*, formula*> pairf;
00091       typedef std::pair<type, pairf> pair;
00092       typedef std::map<pair, binop*> map;
00093       static map instances;
00094 
00095       binop(type op, formula* first, formula* second);
00096       virtual ~binop();
00097 
00098     private:
00099       type op_;
00100       formula* first_;
00101       formula* second_;
00102     };
00103 
00104   }
00105 }
00106 
00107 #endif // SPOT_LTLAST_BINOP_HH

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