spot
0.8.1
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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 00022 #ifndef SPOT_MISC_BDDALLOC_HH 00023 # define SPOT_MISC_BDDALLOC_HH 00024 00025 #include "freelist.hh" 00026 #include <list> 00027 #include <utility> 00028 00029 namespace spot 00030 { 00033 class bdd_allocator: private free_list 00034 { 00035 public: 00037 bdd_allocator(); 00039 static void initialize(); 00041 int allocate_variables(int n); 00043 void release_variables(int base, int n); 00044 00045 using free_list::dump_free_list; 00046 protected: 00047 static bool initialized; 00048 int lvarnum; 00049 private: 00051 void extvarnum(int more); 00052 virtual int extend(int n); 00053 }; 00054 00055 } 00056 00057 #endif // SPOT_MISC_BDDALLOC_HH