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ltlast/multop.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_MULTOP_HH
00023 # define SPOT_LTLAST_MULTOP_HH
00024 
00025 #include <vector>
00026 #include <map>
00027 #include "refformula.hh"
00028 
00029 namespace spot
00030 {
00031   namespace ltl
00032   {
00033 
00037     class multop : public ref_formula
00038     {
00039     public:
00040       enum type { Or, And };
00041 
00043       typedef std::vector<formula*> vec;
00044 
00057       static formula* instance(type op, formula* first, formula* second);
00058 
00071       static formula* instance(type op, vec* v);
00072 
00073       virtual void accept(visitor& v);
00074       virtual void accept(const_visitor& v) const;
00075 
00077       unsigned size() const;
00081       const formula* nth(unsigned n) const;
00085       formula* nth(unsigned n);
00086 
00088       type op() const;
00090       const char* op_name() const;
00091 
00093       static unsigned instance_count();
00094 
00095     protected:
00096       typedef std::pair<type, vec*> pair;
00098       struct paircmp
00099       {
00100         bool
00101         operator () (const pair& p1, const pair& p2) const
00102         {
00103           if (p1.first != p2.first)
00104             return p1.first < p2.first;
00105           return *p1.second < *p2.second;
00106         }
00107       };
00108       typedef std::map<pair, formula*, paircmp> map;
00109       static map instances;
00110 
00111       multop(type op, vec* v);
00112       virtual ~multop();
00113 
00114     private:
00115       type op_;
00116       vec* children_;
00117     };
00118 
00119   }
00120 }
00121 
00122 #endif // SPOT_LTLAST_MULTOP_HH

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