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brancher-val.hpp
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1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main author:
4  * Christian Schulte <schulte@gecode.org>
5  *
6  * Copyright:
7  * Christian Schulte, 2008
8  *
9  * Last modified:
10  * $Date: 2011-05-11 20:44:17 +1000 (Wed, 11 May 2011) $ by $Author: tack $
11  * $Revision: 12001 $
12  *
13  * This file is part of Gecode, the generic constraint
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37 
38 namespace Gecode {
39 
46 
48  public:
50  size_t size(void) const;
52  void archive(Archive& e) const;
53  };
54 
60  template<class _View, class _Val>
61  class ValSelBase {
62  public:
64  typedef _View View;
66  typedef _Val Val;
70  static const unsigned int alternatives = 2;
72  ValSelBase(void);
74  ValSelBase(Space& home, const ValBranchOptions& vbo);
78  EmptyValSelChoice choice(const Space& home, Archive& e);
80  void commit(Space& home, const EmptyValSelChoice& c, unsigned a);
82  void update(Space& home, bool share, ValSelBase& vs);
84  void dispose(Space& home);
85  };
87 
88 
89  // Empty value selection choice
90  forceinline size_t
92  return sizeof(EmptyValSelChoice);
93  }
94  forceinline void
95  EmptyValSelChoice::archive(Archive& e) const { (void)e; }
96 
97  // Value selection base class
98  template<class View, class Val>
101  template<class View, class Val>
104  template<class View, class Val>
107  EmptyValSelChoice c; return c;
108  }
109  template<class View, class Val>
112  EmptyValSelChoice c; return c;
113  }
114  template<class View, class Val>
115  forceinline void
117  template<class View, class Val>
118  forceinline void
120  template<class View, class Val>
121  forceinline void
123 
124 }
125 
126 // STATISTICS: kernel-branch