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view-sel.cpp
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37 
38 #include <gecode/float/branch.hh>
39 
40 namespace Gecode { namespace Float { namespace Branch {
41 
42  ViewSel<FloatView>*
43  viewsel(Space& home, const FloatVarBranch& fvb) {
44  switch (fvb.select()) {
46  return new (home) ViewSelNone<FloatView>(home,fvb);
48  return new (home) ViewSelRnd<FloatView>(home,fvb);
49  default: break;
50  }
51  if (fvb.tbl() != NULL) {
52  switch (fvb.select()) {
54  return new (home) ViewSelMinTbl<MeritFunction<FloatView> >(home,fvb);
56  return new (home) ViewSelMaxTbl<MeritFunction<FloatView> >(home,fvb);
58  return new (home) ViewSelMinTbl<MeritMin>(home,fvb);
60  return new (home) ViewSelMaxTbl<MeritMin>(home,fvb);
62  return new (home) ViewSelMinTbl<MeritMax>(home,fvb);
64  return new (home) ViewSelMaxTbl<MeritMax>(home,fvb);
66  return new (home) ViewSelMinTbl<MeritSize>(home,fvb);
68  return new (home) ViewSelMaxTbl<MeritSize>(home,fvb);
70  return new (home) ViewSelMinTbl<MeritDegree<FloatView> >(home,fvb);
72  return new (home) ViewSelMaxTbl<MeritDegree<FloatView> >(home,fvb);
74  return new (home) ViewSelMinTbl<MeritAFC<FloatView> >(home,fvb);
76  return new (home) ViewSelMaxTbl<MeritAFC<FloatView> >(home,fvb);
78  return new (home) ViewSelMinTbl<MeritActivity<FloatView> >(home,fvb);
80  return new (home) ViewSelMaxTbl<MeritActivity<FloatView> >(home,fvb);
82  return new (home) ViewSelMinTbl<MeritDegreeSize>(home,fvb);
84  return new (home) ViewSelMaxTbl<MeritDegreeSize>(home,fvb);
86  return new (home) ViewSelMinTbl<MeritAFCSize>(home,fvb);
88  return new (home) ViewSelMaxTbl<MeritAFCSize>(home,fvb);
90  return new (home) ViewSelMinTbl<MeritActivitySize>(home,fvb);
92  return new (home) ViewSelMaxTbl<MeritActivitySize>(home,fvb);
93  default:
94  throw UnknownBranching("Float::branch");
95  }
96  } else {
97  switch (fvb.select()) {
99  return new (home) ViewSelMin<MeritFunction<FloatView> >(home,fvb);
101  return new (home) ViewSelMax<MeritFunction<FloatView> >(home,fvb);
103  return new (home) ViewSelMin<MeritMin>(home,fvb);
105  return new (home) ViewSelMax<MeritMin>(home,fvb);
107  return new (home) ViewSelMin<MeritMax>(home,fvb);
109  return new (home) ViewSelMax<MeritMax>(home,fvb);
111  return new (home) ViewSelMin<MeritSize>(home,fvb);
113  return new (home) ViewSelMax<MeritSize>(home,fvb);
115  return new (home) ViewSelMin<MeritDegree<FloatView> >(home,fvb);
117  return new (home) ViewSelMax<MeritDegree<FloatView> >(home,fvb);
119  return new (home) ViewSelMin<MeritAFC<FloatView> >(home,fvb);
121  return new (home) ViewSelMax<MeritAFC<FloatView> >(home,fvb);
123  return new (home) ViewSelMin<MeritActivity<FloatView> >(home,fvb);
125  return new (home) ViewSelMax<MeritActivity<FloatView> >(home,fvb);
127  return new (home) ViewSelMin<MeritDegreeSize>(home,fvb);
129  return new (home) ViewSelMax<MeritDegreeSize>(home,fvb);
131  return new (home) ViewSelMin<MeritAFCSize>(home,fvb);
133  return new (home) ViewSelMax<MeritAFCSize>(home,fvb);
135  return new (home) ViewSelMin<MeritActivitySize>(home,fvb);
137  return new (home) ViewSelMax<MeritActivitySize>(home,fvb);
138  default:
139  throw UnknownBranching("Float::branch");
140  }
141  }
142  GECODE_NEVER;
143  return NULL;
144  }
145 
146 }}}
147 
148 
149 // STATISTICS: float-branch
150 
Select view with largest merit.
With smallest accumulated failure count.
Definition: float.hh:1526
With smallest domain size.
Definition: float.hh:1534
Merit class for degree.
Which variable to select for branching.
Definition: float.hh:1516
BranchTbl tbl(void) const
Return tie-break limit function.
Definition: branch-var.hpp:135
Computation spaces.
Definition: core.hpp:1362
Select the first unassigned view.
Select view with least merit.
Merit class for activity.
With smallest accumulated failure count divided by domain size.
Definition: float.hh:1538
With smallest degree.
Definition: float.hh:1524
Select view with largest merit taking tie-break limit into account.
Select select(void) const
Return selection strategy.
Definition: var.hpp:69
Merit class for user-defined merit function.
With smallest degree divided by domain size.
Definition: float.hh:1536
ViewSel< FloatView > * viewsel(Space &home, const FloatVarBranch &fvb)
Return view selectors for float views.
Definition: view-sel.cpp:43
With largest accumulated failure count.
Definition: float.hh:1527
Select view with least merit taking tie-break limit into account.
Exception: Unknown value or variable selection passed as argument
Definition: exception.hpp:106
Random (uniform, for tie breaking)
Definition: float.hh:1521
Select a view randomly.
Merit class for AFC.
First unassigned.
Definition: float.hh:1520
With smallest activity divided by domain size.
Definition: float.hh:1540
With largest domain size.
Definition: float.hh:1535
With largest accumulated failure count divided by domain size.
Definition: float.hh:1539
With largest activity divided by domain size.
Definition: float.hh:1541
Gecode toplevel namespace
With largest degree divided by domain size.
Definition: float.hh:1537
#define GECODE_NEVER
Assert that this command is never executed.
Definition: macros.hpp:60