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satsolver.hh
1 // -*- coding: utf-8 -*-
2 // Copyright (C) 2013 Laboratoire de Recherche et Développement
3 // de l'Epita.
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 #pragma once
21 
22 #include <spot/misc/common.hh>
23 #include <spot/misc/tmpfile.hh>
24 #include <vector>
25 #include <stdexcept>
26 #include <iosfwd>
27 
28 namespace spot
29 {
30  class printable;
31 
33  {
34  private:
35  int count_;
36 
37  public:
39  : count_(0)
40  {
41  }
42 
43  void check() const
44  {
45  if (count_ < 0)
46  throw std::runtime_error("too many SAT clauses (more than INT_MAX)");
47  }
48 
49  clause_counter& operator++()
50  {
51  ++count_;
52  check();
53  return *this;
54  }
55 
56  clause_counter& operator+=(int n)
57  {
58  count_ += n;
59  check();
60  return *this;
61  }
62 
63  int nb_clauses() const
64  {
65  return count_;
66  }
67  };
68 
80  class SPOT_API satsolver
81  {
82  public:
83  satsolver();
84  ~satsolver();
85 
86  void start();
87  std::ostream& operator()();
88 
89  typedef std::vector<int> solution;
90  typedef std::pair<int, solution> solution_pair;
91  solution_pair get_solution();
92  private:
93  temporary_file* cnf_tmp_;
94  std::ostream* cnf_stream_;
95  };
96 
98  SPOT_API satsolver::solution
99  satsolver_get_solution(const char* filename);
100 }
Definition: graph.hh:32
Temporary file name.
Definition: tmpfile.hh:49
Definition: satsolver.hh:32
Interface with a SAT solver.
Definition: satsolver.hh:80

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