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reachiter.hh
1 // -*- coding: utf-8 -*-
2 // Copyright (C) 2010, 2011, 2012, 2013 Laboratoire de Recherche et
3 // Développement de l'Epita (LRDE).
4 //
5 // This file is part of Spot, a model checking library.
6 //
7 // Spot is free software; you can redistribute it and/or modify it
8 // under the terms of the GNU General Public License as published by
9 // the Free Software Foundation; either version 3 of the License, or
10 // (at your option) any later version.
11 //
12 // Spot is distributed in the hope that it will be useful, but WITHOUT
13 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 // License for more details.
16 //
17 // You should have received a copy of the GNU General Public License
18 // along with this program. If not, see <http://www.gnu.org/licenses/>.
19 
20 #ifndef SPOT_TAALGOS_REACHITER_HH
21 # define SPOT_TAALGOS_REACHITER_HH
22 
23 #include "misc/hash.hh"
24 #include "ta/ta.hh"
25 #include <stack>
26 #include <deque>
27 
28 namespace spot
29 {
32  class SPOT_API ta_reachable_iterator
33  {
34  public:
35  ta_reachable_iterator(const ta* a);
36  virtual
38 
44  void
45  run();
46 
54  virtual void
55  add_state(const state* s) = 0;
57  virtual const state*
58  next_state() = 0;
60 
63  virtual bool
64  want_state(const state* s) const;
65 
67  virtual void
68  start();
70  virtual void
71  end();
72 
77  virtual void
78  process_state(const state* s, int n);
85  virtual void
86  process_link(int in, int out, const ta_succ_iterator* si);
87 
88  protected:
89 
90  const ta* t_automata_;
91 
92  typedef Sgi::hash_map<const state*, int, state_ptr_hash, state_ptr_equal>
93  seen_map;
94  seen_map seen;
95  };
96 
101  : public ta_reachable_iterator
102  {
103  public:
105 
106  virtual void
107  add_state(const state* s);
108  virtual const state*
109  next_state();
110 
111  protected:
112  std::stack<const state*> todo;
113  };
114 
119  : public ta_reachable_iterator
120  {
121  public:
123 
124  virtual void
125  add_state(const state* s);
126  virtual const state*
127  next_state();
128 
129  protected:
130  std::deque<const state*> todo;
131  };
132 
133 }
134 
135 #endif // SPOT_TAALGOS_REACHITER_HH

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