Generated on Sat Feb 7 2015 02:01:24 for Gecode by doxygen 1.8.9.1
ldsb.hh
Go to the documentation of this file.
1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Christopher Mears <chris.mears@monash.edu>
5  *
6  * Copyright:
7  * Christopher Mears, 2012
8  *
9  * Last modified:
10  * $Date: 2013-05-08 13:30:48 +0200 (Wed, 08 May 2013) $ by $Author: schulte $
11  * $Revision: 13622 $
12  *
13  * This file is part of Gecode, the generic constraint
14  * development environment:
15  * http://www.gecode.org
16  *
17  * Permission is hereby granted, free of charge, to any person obtaining
18  * a copy of this software and associated documentation files (the
19  * "Software"), to deal in the Software without restriction, including
20  * without limitation the rights to use, copy, modify, merge, publish,
21  * distribute, sublicense, and/or sell copies of the Software, and to
22  * permit persons to whom the Software is furnished to do so, subject to
23  * the following conditions:
24  *
25  * The above copyright notice and this permission notice shall be
26  * included in all copies or substantial portions of the Software.
27  *
28  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
29  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
30  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
31  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
32  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
33  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
34  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35  *
36  */
37 
38 #ifndef __GECODE_SET_LDSB_HH__
39 #define __GECODE_SET_LDSB_HH__
40 
41 #include <gecode/set.hh>
42 #include <gecode/int/ldsb.hh>
43 
48 namespace Gecode { namespace Set { namespace LDSB {
49 
50  using namespace Int::LDSB;
51 
60  template<class View, int n, class Val, unsigned int a>
61  class LDSBSetBrancher : public LDSBBrancher<View,n,Val,a> {
62  public:
64  typedef void (*VarValPrint)(const Space& home, const BrancherHandle& bh,
65  unsigned int b,
66  typename View::VarType x, int i,
67  const Val& m,
68  std::ostream& o);
70  int _prevPos;
90  bool _stable;
91 
93  LDSBSetBrancher(Space& home, bool share, LDSBSetBrancher& b);
95  LDSBSetBrancher(Home home,
96  ViewArray<View>& x,
97  ViewSel<View>* vs[n],
99  SymmetryImp<View>** syms, int nsyms,
100  SetBranchFilter bf,
101  VarValPrint vvp);
103  virtual const Choice* choice(Space& home);
105  virtual ExecStatus commit(Space& home, const Choice& c, unsigned int b);
107  virtual Actor* copy(Space& home, bool share);
109  static BrancherHandle post(Home home,
110  ViewArray<View>& x,
111  ViewSel<View>* vs[n],
113  SymmetryImp<View>** _syms,
114  int _nsyms,
115  SetBranchFilter bf,
116  VarValPrint vvp);
117 
126  void updatePart1(Space& home, int choicePos);
127  };
128 
129 }}}
130 
131 namespace Gecode { namespace Int { namespace LDSB {
132  template <>
133  ArgArray<Literal>
135  ::symmetric(Literal l, const ViewArray<Set::SetView>& x) const;
136 }}}
137 
139 
140 #endif
141 
142 // STATISTICS: set-branch
Symmetry-breaking brancher with generic view and value selection.
Definition: ldsb.hh:61
NNF * l
Left subtree.
Definition: bool-expr.cpp:244
void post(Home home, Term *t, int n, FloatRelType frt, FloatVal c)
Post propagator for linear constraint over floats.
Definition: post.cpp:228
Handle for brancher.
Definition: core.hpp:1157
Computation spaces.
Definition: core.hpp:1362
Base-class for both propagators and branchers.
Definition: core.hpp:666
ValueSymmetryImp< View > ** _copiedSyms
Copy of value symmetries from the first node where the current variable was branched on...
Definition: ldsb.hh:77
Gecode::FloatVal c(-8, 8)
int _nValueSymmetries
Number of value symmetries.
Definition: ldsb.hh:74
Gecode::IntArgs i(4, 1, 2, 3, 4)
int n
Number of negative literals for node type.
Definition: bool-expr.cpp:238
Implementation of a value symmetry.
Definition: ldsb.hh:205
int _nCopiedSyms
Number of copied symmetries.
Definition: ldsb.hh:79
Symmetry-breaking brancher with generic view and value selection.
Definition: ldsb.hh:335
Integer sets.
Definition: int.hh:171
View arrays.
Definition: array.hpp:234
int _nNonValueSymmetries
Number of non-value symmetries.
Definition: ldsb.hh:72
BrancherHandle bh
Implementation of a single symmetry.
Definition: ldsb.hh:166
Node * x
Pointer to corresponding Boolean expression node.
Definition: bool-expr.cpp:253
Choice for performing commit
Definition: core.hpp:1036
ExecStatus
Definition: core.hpp:523
virtual ArgArray< Literal > symmetric(Literal, const ViewArray< View > &) const
Compute symmetric literals.
Definition: sym-imp.hpp:232
bool(* SetBranchFilter)(const Space &home, SetVar x, int i)
Branch filter function type for set variables.
Definition: set.hh:1102
int _prevPos
Position of previous variable that was branched on.
Definition: ldsb.hh:70
IntSet _leftBranchValues
Set of values used on left branches for the current variable.
Definition: ldsb.hh:81
struct Gecode::@518::NNF::@57::@58 b
For binary nodes (and, or, eqv)
Gecode toplevel namespace
Home class for posting propagators
Definition: core.hpp:717
bool _stable
Is the state of the brancher "stable"?
Definition: ldsb.hh:90