spot  1.1.4
modgray.hh
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1 // Copyright (C) 2004 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 //
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_MISC_MODGRAY_HH
21 # define SPOT_MISC_MODGRAY_HH
22 
23 namespace spot
24 {
25 
70  {
71  public:
76 
78 
88 
90  virtual void a_first(int j) = 0;
94  virtual void a_next(int j) = 0;
96  virtual bool a_last(int j) const = 0;
98 
101 
105  void first();
106 
111  bool
112  last() const
113  {
114  return f_[0] == n_;
115  }
116 
118  bool
119  done() const
120  {
121  return done_;
122  }
123 
130  int next();
132 
133  protected:
134  int n_;
135  bool done_;
136  int* a_;
137  int* f_;
138  int* m_;
139  int* s_;
141  };
142 
143 } // spot
144 
145 # endif // SPOT_MISC_MODGRAY_HH

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