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relax.cpp
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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, 2016
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10  * $Date: 2016-10-25 12:52:26 +0200 (Tue, 25 Oct 2016) $ by $Author: schulte $
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37 
38 #include <gecode/int.hh>
39 #include <gecode/search/relax.hh>
40 
41 namespace Gecode { namespace Int {
42 
44  class Relax {
45  public:
50  };
51 
54  IntView xv(x);
55  return me_failed(xv.eq(home,sx.val())) ? ES_FAILED : ES_OK;
56  }
57 
60  BoolView xv(x);
61  return me_failed(xv.eq(home,sx.val())) ? ES_FAILED : ES_OK;
62  }
63 
64 }}
65 
66 namespace Gecode {
67 
68  void
69  relax(Home home, const IntVarArgs& x, const IntVarArgs& sx,
70  Rnd r, double p) {
71  if (x.size() != sx.size())
72  throw Int::ArgumentSizeMismatch("Int::relax");
73  if ((p < 0.0) || (p > 1.0))
74  throw Int::OutOfLimits("Int::relax");
75  Int::Relax ir;
76  Search::relax<IntVarArgs,Int::Relax>(home,x,sx,r,p,ir);
77  }
78 
79  void
80  relax(Home home, const BoolVarArgs& x, const BoolVarArgs& sx,
81  Rnd r, double p) {
82  if (x.size() != sx.size())
83  throw Int::ArgumentSizeMismatch("Int::relax");
84  if ((p < 0.0) || (p > 1.0))
85  throw Int::OutOfLimits("Int::relax");
86  Int::Relax ir;
87  Search::relax<BoolVarArgs,Int::Relax>(home,x,sx,r,p,ir);
88  }
89 
90 }
91 
92 // STATISTICS: int-other
93 
Exception: Value out of limits
Definition: exception.hpp:48
int size(void) const
Return size of array (number of elements)
Definition: array.hpp:1669
ModEvent eq(Space &home, int n)
Restrict domain values to be equal to n.
Definition: int.hpp:160
ExecStatus operator()(Home home, IntVar x, IntVar sx)
Post the actual equality for non-relaxed variables.
Definition: relax.cpp:53
ModEvent eq(Space &home, int n)
Restrict domain values to be equal to n.
Definition: bool.hpp:164
int p
Number of positive literals for node type.
Definition: bool-expr.cpp:236
Execution has resulted in failure.
Definition: core.hpp:542
int val(void) const
Return assigned value.
Definition: int.hpp:60
Passing integer variables.
Definition: int.hh:639
Passing Boolean variables.
Definition: int.hh:693
Boolean integer variables.
Definition: int.hh:494
Post propagator for SetVar SetOpType SetVar SetRelType r
Definition: set.hh:784
Integer view for integer variables.
Definition: view.hpp:129
Class for posting equalities for non-relaxed variables.
Definition: relax.cpp:44
void relax(Home home, const FloatVarArgs &x, const FloatVarArgs &sx, Rnd r, double p)
Definition: relax.cpp:61
ExecStatus
Definition: core.hpp:540
Integer variables.
Definition: int.hh:353
#define forceinline
Definition: config.hpp:173
Post propagator for SetVar x
Definition: set.hh:784
Execution is okay.
Definition: core.hpp:544
Gecode toplevel namespace
Random number generator.
Definition: rnd.hpp:46
Home class for posting propagators
Definition: core.hpp:922
Exception: Arguments are of different size
Definition: exception.hpp:77
bool me_failed(ModEvent me)
Check whether modification event me is failed.
Definition: modevent.hpp:58
int val(void) const
Return assigned value.
Definition: bool.hpp:61
Boolean view for Boolean variables.
Definition: view.hpp:1315