spot  0.9.1
reachiter.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 
00022 #ifndef SPOT_EVTGBAALGOS_REACHITER_HH
00023 # define SPOT_EVTGBAALGOS_REACHITER_HH
00024 
00025 #include "misc/hash.hh"
00026 #include "evtgba/evtgba.hh"
00027 #include <stack>
00028 #include <deque>
00029 
00030 namespace spot
00031 {
00033   class evtgba_reachable_iterator
00034   {
00035   public:
00036     evtgba_reachable_iterator(const evtgba* a);
00037     virtual ~evtgba_reachable_iterator();
00038 
00044     void run();
00045 
00053     virtual void add_state(const state* s) = 0;
00055     virtual const state* next_state() = 0;
00057 
00061     virtual void start(int n);
00063     virtual void end();
00064 
00070     virtual void process_state(const state* s, int n, evtgba_iterator* si);
00077     virtual void process_link(int in, int out, const evtgba_iterator* si);
00078 
00079   protected:
00080     const evtgba* automata_;    
00081 
00082     typedef Sgi::hash_map<const state*, int,
00083                           state_ptr_hash, state_ptr_equal> seen_map;
00084     seen_map seen;              
00085   };
00086 
00089   class evtgba_reachable_iterator_depth_first:
00090     public evtgba_reachable_iterator
00091   {
00092   public:
00093     evtgba_reachable_iterator_depth_first(const evtgba* a);
00094 
00095     virtual void add_state(const state* s);
00096     virtual const state* next_state();
00097 
00098   protected:
00099     std::stack<const state*> todo; 
00100   };
00101 
00104   class evtgba_reachable_iterator_breadth_first:
00105     public evtgba_reachable_iterator
00106   {
00107   public:
00108     evtgba_reachable_iterator_breadth_first(const evtgba* a);
00109 
00110     virtual void add_state(const state* s);
00111     virtual const state* next_state();
00112 
00113   protected:
00114     std::deque<const state*> todo; 
00115   };
00116 
00117 
00118 }
00119 
00120 
00121 #endif // SPOT_EVTGBAALGOS_REACHITER_HH

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