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ltlast/binop.hh

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00001 // Copyright (C) 2003 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_LTLAST_BINOP_HH 00023 # define SPOT_LTLAST_BINOP_HH 00024 00025 #include <map> 00026 #include "refformula.hh" 00027 00028 namespace spot 00029 { 00030 namespace ltl 00031 { 00032 00034 class binop : public ref_formula 00035 { 00036 public: 00041 enum type { Xor, Implies, Equiv, U, R }; 00042 00045 static binop* instance(type op, formula* first, formula* second); 00046 00047 virtual void accept(visitor& v); 00048 virtual void accept(const_visitor& v) const; 00049 00051 const formula* first() const; 00053 formula* first(); 00055 const formula* second() const; 00057 formula* second(); 00058 00060 type op() const; 00062 const char* op_name() const; 00063 00065 static unsigned instance_count(); 00066 00067 protected: 00068 typedef std::pair<formula*, formula*> pairf; 00069 typedef std::pair<type, pairf> pair; 00070 typedef std::map<pair, formula*> map; 00071 static map instances; 00072 00073 binop(type op, formula* first, formula* second); 00074 virtual ~binop(); 00075 00076 private: 00077 type op_; 00078 formula* first_; 00079 formula* second_; 00080 }; 00081 00082 } 00083 } 00084 00085 #endif // SPOT_LTLAST_BINOP_HH

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