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multop.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 
00024 #ifndef SPOT_LTLAST_MULTOP_HH
00025 # define SPOT_LTLAST_MULTOP_HH
00026 
00027 #include <vector>
00028 #include <map>
00029 #include "refformula.hh"
00030 
00031 namespace spot
00032 {
00033   namespace ltl
00034   {
00035 
00040     class multop : public ref_formula
00041     {
00042     public:
00043       enum type { Or, And };
00044 
00046       typedef std::vector<formula*> vec;
00047 
00060       static formula* instance(type op, formula* first, formula* second);
00061 
00074       static formula* instance(type op, vec* v);
00075 
00076       virtual void accept(visitor& v);
00077       virtual void accept(const_visitor& v) const;
00078 
00080       unsigned size() const;
00084       const formula* nth(unsigned n) const;
00088       formula* nth(unsigned n);
00089 
00091       type op() const;
00093       const char* op_name() const;
00094 
00096       static unsigned instance_count();
00097 
00098     protected:
00099       typedef std::pair<type, vec*> pair;
00101       struct paircmp
00102       {
00103         bool
00104         operator () (const pair& p1, const pair& p2) const
00105         {
00106           if (p1.first != p2.first)
00107             return p1.first < p2.first;
00108           return *p1.second < *p2.second;
00109         }
00110       };
00111       typedef std::map<pair, formula*, paircmp> map;
00112       static map instances;
00113 
00114       multop(type op, vec* v);
00115       virtual ~multop();
00116 
00117     private:
00118       type op_;
00119       vec* children_;
00120     };
00121 
00122   }
00123 }
00124 
00125 #endif // SPOT_LTLAST_MULTOP_HH

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