spot  0.8.1
freelist.hh
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00001 // Copyright (C) 2008 Laboratoire de Recherche et Développement
00002 // de l'Epita (LRDE).
00003 // Copyright (C) 2004, 2006 Laboratoire d'Informatique de Paris 6 (LIP6),
00004 // département Systèmes Répartis Coopératifs (SRC), Université Pierre
00005 // 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 
00024 
00025 #ifndef SPOT_MISC_FREELIST_HH
00026 # define SPOT_MISC_FREELIST_HH
00027 
00028 #include <list>
00029 #include <utility>
00030 #include <iosfwd>
00031 
00032 namespace spot
00033 {
00034 
00037   class free_list
00038   {
00039   public:
00040     virtual ~free_list();
00041 
00047     int register_n(int n);
00048 
00050     void release_n(int base, int n);
00051 
00053     std::ostream& dump_free_list(std::ostream& os) const;
00054 
00056     void insert(int base, int n);
00057 
00059     void remove(int base, int n = 0);
00060 
00062     int free_count() const;
00063 
00064   protected:
00065 
00073     virtual int extend(int n) = 0;
00074 
00076     typedef std::pair<int, int> pos_lenght_pair;
00077     typedef std::list<pos_lenght_pair> free_list_type;
00078     free_list_type fl; 
00079 
00081     void remove(free_list_type::iterator i, int base, int n);
00082   };
00083 
00084 }
00085 
00086 #endif // SPOT_MISC_FREELIST_HH

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