spot  2.12.2
reachiter.hh
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18 
19 #pragma once
20 
21 #include <spot/misc/hash.hh>
22 #include <spot/ta/ta.hh>
23 #include <stack>
24 #include <deque>
25 
26 namespace spot
27 {
30  class SPOT_API ta_reachable_iterator
31  {
32  public:
33  ta_reachable_iterator(const const_ta_ptr& a);
34  virtual
36 
42  void
43  run();
44 
52  virtual void
53  add_state(const state* s) = 0;
55  virtual const state*
56  next_state() = 0;
58 
61  virtual bool
62  want_state(const state* s) const;
63 
65  virtual void
66  start();
68  virtual void
69  end();
70 
75  virtual void
76  process_state(const state* s, int n);
83  virtual void
84  process_link(int in, int out, const ta_succ_iterator* si);
85 
86  protected:
87 
88  const_ta_ptr t_automata_;
89 
91  };
92 
97  : public ta_reachable_iterator
98  {
99  public:
100  ta_reachable_iterator_depth_first(const const_ta_ptr& a);
101 
102  virtual void add_state(const state* s) override;
103  virtual const state* next_state() override;
104 
105  protected:
106  std::stack<const state*> todo;
107  };
108 
113  : public ta_reachable_iterator
114  {
115  public:
116  ta_reachable_iterator_breadth_first(const const_ta_ptr& a);
117 
118  virtual void add_state(const state* s) override;
119  virtual const state* next_state() override;
120 
121  protected:
122  std::deque<const state*> todo;
123  };
124 }
Abstract class for states.
Definition: twa.hh:47
An implementation of spot::ta_reachable_iterator that browses states breadth first.
Definition: reachiter.hh:114
virtual const state * next_state() override
Called by run() to obtain the next state to process.
virtual void add_state(const state *s) override
Called by run() to obtain the next state to process.
std::deque< const state * > todo
A queue of states yet to explore.
Definition: reachiter.hh:122
An implementation of spot::ta_reachable_iterator that browses states depth first.
Definition: reachiter.hh:98
virtual void add_state(const state *s) override
Called by run() to obtain the next state to process.
std::stack< const state * > todo
A stack of states yet to explore.
Definition: reachiter.hh:106
virtual const state * next_state() override
Called by run() to obtain the next state to process.
Iterate over all reachable states of a spot::ta.
Definition: reachiter.hh:31
void run()
Iterate over all reachable states of a spot::ta.
virtual void add_state(const state *s)=0
Called by run() to obtain the next state to process.
virtual bool want_state(const state *s) const
const_ta_ptr t_automata_
The spot::ta to explore.
Definition: reachiter.hh:88
state_map< int > seen
States already seen.
Definition: reachiter.hh:90
virtual void process_state(const state *s, int n)
virtual const state * next_state()=0
Called by run() to obtain the next state to process.
virtual void process_link(int in, int out, const ta_succ_iterator *si)
virtual void start()
Called by run() before starting its iteration.
virtual void end()
Called by run() once all states have been explored.
Iterate over the successors of a state.
Definition: ta.hh:197
Definition: automata.hh:26
std::unordered_map< const state *, val, state_ptr_hash, state_ptr_equal > state_map
Unordered map of abstract states.
Definition: twa.hh:193

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