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ltlast/binop.hh

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00001 // Copyright (C) 2003, 2004 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 00027 #ifndef SPOT_LTLAST_BINOP_HH 00028 # define SPOT_LTLAST_BINOP_HH 00029 00030 #include <map> 00031 #include "refformula.hh" 00032 00033 namespace spot 00034 { 00035 namespace ltl 00036 { 00037 00039 class binop : public ref_formula 00040 { 00041 public: 00046 enum type { Xor, Implies, Equiv, U, R }; 00047 00050 static binop* instance(type op, formula* first, formula* second); 00051 00052 virtual void accept(visitor& v); 00053 virtual void accept(const_visitor& v) const; 00054 00056 const formula* first() const; 00058 formula* first(); 00060 const formula* second() const; 00062 formula* second(); 00063 00065 type op() const; 00067 const char* op_name() const; 00068 00070 static unsigned instance_count(); 00071 00072 protected: 00073 typedef std::pair<formula*, formula*> pairf; 00074 typedef std::pair<type, pairf> pair; 00075 typedef std::map<pair, formula*> map; 00076 static map instances; 00077 00078 binop(type op, formula* first, formula* second); 00079 virtual ~binop(); 00080 00081 private: 00082 type op_; 00083 formula* first_; 00084 formula* second_; 00085 }; 00086 00087 } 00088 } 00089 00090 #endif // SPOT_LTLAST_BINOP_HH

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