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sccstack.hh
1 // -*- coding: utf-8 -*-
2 // Copyright (C) 2013 Laboratoire de Recherche et Développement de
3 // l'Epita (LRDE).
4 // Copyright (C) 2004, 2005 Laboratoire d'Informatique de Paris 6 (LIP6),
5 // département Systèmes Répartis Coopératifs (SRC), Université Pierre
6 // et Marie Curie.
7 //
8 // This file is part of Spot, a model checking library.
9 //
10 // Spot is free software; you can redistribute it and/or modify it
11 // under the terms of the GNU General Public License as published by
12 // the Free Software Foundation; either version 3 of the License, or
13 // (at your option) any later version.
14 //
15 // Spot is distributed in the hope that it will be useful, but WITHOUT
16 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
17 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
18 // License for more details.
19 //
20 // You should have received a copy of the GNU General Public License
21 // along with this program. If not, see <http://www.gnu.org/licenses/>.
22 
23 #ifndef SPOT_TGBAALGOS_GTEC_SCCSTACK_HH
24 # define SPOT_TGBAALGOS_GTEC_SCCSTACK_HH
25 
26 #include <bdd.h>
27 #include <list>
28 #include <tgba/state.hh>
29 
30 namespace spot
31 {
32  // A stack of Strongly-Connected Components, as needed by the
33  // Tarjan-Couvreur algorithm.
34  class SPOT_API scc_stack
35  {
36  public:
38  {
39  public:
40  connected_component(int index = -1);
41 
43  int index;
46  bdd condition;
47 
48  std::list<const state*> rem;
49  };
50 
52  void push(int index);
53 
55  connected_component& top();
56 
58  const connected_component& top() const;
59 
61  void pop();
62 
64  size_t size() const;
65 
67  std::list<const state*>& rem();
68 
72  unsigned clear_rem();
73 
75  bool empty() const;
76 
77  typedef std::list<connected_component> stack_type;
78  stack_type s;
79  };
80 }
81 
82 #endif // SPOT_TGBAALGOS_GTEC_SCCSTACK_HH

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