spot  0.9.2
sccstack.hh
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1 // Copyright (C) 2004, 2005 Laboratoire d'Informatique de Paris 6 (LIP6),
2 // département Systèmes Répartis Coopératifs (SRC), Université Pierre
3 // et Marie Curie.
4 //
5 // This file is part of Spot, a model checking library.
6 //
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8 // under the terms of the GNU General Public License as published by
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21 
22 #ifndef SPOT_TGBAALGOS_GTEC_SCCSTACK_HH
23 # define SPOT_TGBAALGOS_GTEC_SCCSTACK_HH
24 
25 #include <bdd.h>
26 #include <list>
27 #include <tgba/state.hh>
28 
29 namespace spot
30 {
31  // A stack of Strongly-Connected Components, as needed by the
32  // Tarjan-Couvreur algorithm.
33  class scc_stack
34  {
35  public:
37  {
38  public:
39  connected_component(int index = -1);
40 
42  int index;
45  bdd condition;
46 
47  std::list<const state*> rem;
48  };
49 
51  void push(int index);
52 
55 
57  const connected_component& top() const;
58 
60  void pop();
61 
63  size_t size() const;
64 
66  std::list<const state*>& rem();
67 
71  unsigned clear_rem();
72 
74  bool empty() const;
75 
76  typedef std::list<connected_component> stack_type;
78  };
79 }
80 
81 #endif // SPOT_TGBAALGOS_GTEC_SCCSTACK_HH

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