Generated on Sat Oct 20 2018 12:43:45 for Gecode by doxygen 1.8.13
view-sel.cpp
Go to the documentation of this file.
1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
5  *
6  * Copyright:
7  * Christian Schulte, 2012
8  *
9  * This file is part of Gecode, the generic constraint
10  * development environment:
11  * http://www.gecode.org
12  *
13  * Permission is hereby granted, free of charge, to any person obtaining
14  * a copy of this software and associated documentation files (the
15  * "Software"), to deal in the Software without restriction, including
16  * without limitation the rights to use, copy, modify, merge, publish,
17  * distribute, sublicense, and/or sell copies of the Software, and to
18  * permit persons to whom the Software is furnished to do so, subject to
19  * the following conditions:
20  *
21  * The above copyright notice and this permission notice shall be
22  * included in all copies or substantial portions of the Software.
23  *
24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31  *
32  */
33 
34 #include <gecode/set/branch.hh>
35 
36 namespace Gecode { namespace Set { namespace Branch {
37 
38  ViewSel<SetView>*
39  viewsel(Space& home, const SetVarBranch& svb) {
40  switch (svb.select()) {
42  return new (home) ViewSelNone<SetView>(home,svb);
44  return new (home) ViewSelRnd<SetView>(home,svb);
45  default: break;
46  }
47  if (svb.tbl() != NULL) {
48  switch (svb.select()) {
50  return new (home) ViewSelMinTbl<MeritFunction<SetView>>(home,svb);
52  return new (home) ViewSelMaxTbl<MeritFunction<SetView>>(home,svb);
54  return new (home) ViewSelMinTbl<MeritMin>(home,svb);
56  return new (home) ViewSelMaxTbl<MeritMin>(home,svb);
58  return new (home) ViewSelMinTbl<MeritMax>(home,svb);
60  return new (home) ViewSelMaxTbl<MeritMax>(home,svb);
62  return new (home) ViewSelMinTbl<MeritSize>(home,svb);
64  return new (home) ViewSelMaxTbl<MeritSize>(home,svb);
66  return new (home) ViewSelMinTbl<MeritDegree<SetView>>(home,svb);
68  return new (home) ViewSelMaxTbl<MeritDegree<SetView>>(home,svb);
70  return new (home) ViewSelMinTbl<MeritAFC<SetView>>(home,svb);
72  return new (home) ViewSelMaxTbl<MeritAFC<SetView>>(home,svb);
74  return new (home) ViewSelMinTbl<MeritAction<SetView>>(home,svb);
76  return new (home) ViewSelMaxTbl<MeritAction<SetView>>(home,svb);
78  return new (home) ViewSelMinTbl<MeritCHB<SetView>>(home,svb);
80  return new (home) ViewSelMaxTbl<MeritCHB<SetView>>(home,svb);
82  return new (home) ViewSelMinTbl<MeritDegreeSize>(home,svb);
84  return new (home) ViewSelMaxTbl<MeritDegreeSize>(home,svb);
86  return new (home) ViewSelMinTbl<MeritAFCSize>(home,svb);
88  return new (home) ViewSelMaxTbl<MeritAFCSize>(home,svb);
90  return new (home) ViewSelMinTbl<MeritActionSize>(home,svb);
92  return new (home) ViewSelMaxTbl<MeritActionSize>(home,svb);
94  return new (home) ViewSelMinTbl<MeritCHBSize>(home,svb);
96  return new (home) ViewSelMaxTbl<MeritCHBSize>(home,svb);
97  default:
98  throw UnknownBranching("Set::branch");
99  }
100  } else {
101  switch (svb.select()) {
103  return new (home) ViewSelMin<MeritFunction<SetView>>(home,svb);
105  return new (home) ViewSelMax<MeritFunction<SetView>>(home,svb);
107  return new (home) ViewSelMin<MeritMin>(home,svb);
109  return new (home) ViewSelMax<MeritMin>(home,svb);
111  return new (home) ViewSelMin<MeritMax>(home,svb);
113  return new (home) ViewSelMax<MeritMax>(home,svb);
115  return new (home) ViewSelMin<MeritSize>(home,svb);
117  return new (home) ViewSelMax<MeritSize>(home,svb);
119  return new (home) ViewSelMin<MeritDegree<SetView>>(home,svb);
121  return new (home) ViewSelMax<MeritDegree<SetView>>(home,svb);
123  return new (home) ViewSelMin<MeritAFC<SetView>>(home,svb);
125  return new (home) ViewSelMax<MeritAFC<SetView>>(home,svb);
127  return new (home) ViewSelMin<MeritAction<SetView>>(home,svb);
129  return new (home) ViewSelMax<MeritAction<SetView>>(home,svb);
131  return new (home) ViewSelMin<MeritCHB<SetView>>(home,svb);
133  return new (home) ViewSelMax<MeritCHB<SetView>>(home,svb);
135  return new (home) ViewSelMin<MeritDegreeSize>(home,svb);
137  return new (home) ViewSelMax<MeritDegreeSize>(home,svb);
139  return new (home) ViewSelMin<MeritAFCSize>(home,svb);
141  return new (home) ViewSelMax<MeritAFCSize>(home,svb);
143  return new (home) ViewSelMin<MeritActionSize>(home,svb);
145  return new (home) ViewSelMax<MeritActionSize>(home,svb);
147  return new (home) ViewSelMin<MeritCHBSize>(home,svb);
149  return new (home) ViewSelMax<MeritCHBSize>(home,svb);
150  default:
151  throw UnknownBranching("Set::branch");
152  }
153  }
154  GECODE_NEVER;
155  return NULL;
156  }
157 
158 }}}
159 
160 
161 // STATISTICS: set-branch
162 
Select view with largest merit.
Definition: view-sel.hpp:335
With highest action.
Definition: set.hh:1309
With lowest CHB Q-score.
Definition: set.hh:1310
With largest maximum unknown element.
Definition: set.hh:1315
With largest minimum unknown element.
Definition: set.hh:1313
First unassigned.
Definition: set.hh:1300
With largest action divided by domain size.
Definition: set.hh:1323
With smallest accumulated failure count divided by domain size.
Definition: set.hh:1320
Merit class for degree.
Definition: merit.hpp:93
With largest accumulated failure count divided by domain size.
Definition: set.hh:1321
With smallest degree.
Definition: set.hh:1304
With smallest CHB Q-score divided by domain size.
Definition: set.hh:1324
With highest CHB Q-score.
Definition: set.hh:1311
With smallest accumulated failure count.
Definition: set.hh:1306
With largest degree divided by domain size.
Definition: set.hh:1319
With smallest action divided by domain size.
Definition: set.hh:1322
Computation spaces.
Definition: core.hpp:1701
Select the first unassigned view.
Definition: view-sel.hpp:109
Select view with least merit.
Definition: view-sel.hpp:295
With largest unknown set.
Definition: set.hh:1317
Exception: Unknown value or variable selection passed as argument
Definition: exception.hpp:108
ViewSel< SetView > * viewsel(Space &home, const SetVarBranch &svb)
Return view selectors for set views.
Definition: view-sel.cpp:39
With largest CHB Q-score divided by domain size.
Definition: set.hh:1325
Select view with largest merit taking tie-break limit into account.
Definition: view-sel.hpp:355
Merit class for user-defined merit function.
Definition: merit.hpp:68
Select view with least merit taking tie-break limit into account.
Definition: view-sel.hpp:315
With smallest degree divided by domain size.
Definition: set.hh:1318
Select a view randomly.
Definition: view-sel.hpp:149
Merit class for AFC.
Definition: merit.hpp:108
With smallest maximum unknown element.
Definition: set.hh:1314
With largest degree.
Definition: set.hh:1305
With lowest action.
Definition: set.hh:1308
BranchTbl tbl(void) const
Return tie-break limit function.
Definition: var.hpp:168
Return selection strategy Select select(void) const
Definition: var.hpp:69
Random (uniform, for tie breaking)
Definition: set.hh:1301
Gecode toplevel namespace
With highest merit.
Definition: set.hh:1303
Which variable to select for branching.
Definition: set.hh:1296
With largest accumulated failure count.
Definition: set.hh:1307
#define GECODE_NEVER
Assert that this command is never executed.
Definition: macros.hpp:56
With smallest unknown set.
Definition: set.hh:1316
Merit class for action.
Definition: merit.hpp:130
With smallest minimum unknown element.
Definition: set.hh:1312
Merit class for CHB.
Definition: merit.hpp:153