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relax.cpp
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1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
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7  * Christian Schulte, 2016
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33 
34 #include <gecode/float.hh>
35 #include <gecode/search/relax.hh>
36 
37 namespace Gecode { namespace Float {
38 
40  class Relax {
41  public:
44  };
45 
48  FloatView xv(x);
49  return me_failed(xv.eq(home,sx.val())) ? ES_FAILED : ES_OK;
50  }
51 
52 }}
53 
54 namespace Gecode {
55 
56  void
57  relax(Home home, const FloatVarArgs& x, const FloatVarArgs& sx,
58  Rnd r, double p) {
59  if (x.size() != sx.size())
60  throw Float::ArgumentSizeMismatch("Float::relax");
61  if ((p < 0.0) || (p > 1.0))
62  throw Float::OutOfLimits("Float::relax");
63  Float::Relax fr;
64  Search::relax<FloatVarArgs,Float::Relax>(home,x,sx,r,p,fr);
65  }
66 
67 }
68 
69 // STATISTICS: float-other
70 
Passing float variables.
Definition: float.hh:979
Post propagator for SetVar x
Definition: set.hh:767
bool me_failed(ModEvent me)
Check whether modification event me is failed.
Definition: modevent.hpp:54
FloatVal val(void) const
Return assigned value.
Definition: float.hpp:53
void relax(Home home, const FloatVarArgs &x, const FloatVarArgs &sx, Rnd r, double p)
Definition: relax.cpp:57
Gecode toplevel namespace
Float view for float variables.
Definition: view.hpp:52
Home class for posting propagators
Definition: core.hpp:856
Post propagator for SetVar SetOpType SetVar SetRelType r
Definition: set.hh:767
Random number generator.
Definition: rnd.hpp:42
Exception: Value out of limits
Definition: exception.hpp:46
Float variables.
Definition: float.hh:870
int size(void) const
Return size of array (number of elements)
Definition: array.hpp:1607
ExecStatus operator()(Home home, FloatVar x, FloatVar sx)
Post the actual equality for non-relaxed variables.
Definition: relax.cpp:47
Exception: Arguments are of different size
Definition: exception.hpp:74
#define forceinline
Definition: config.hpp:185
ModEvent eq(Space &home, int n)
Restrict domain values to be equal to n.
Definition: float.hpp:131
Execution has resulted in failure.
Definition: core.hpp:474
Class for posting equalities for non-relaxed variables.
Definition: relax.cpp:40
Execution is okay.
Definition: core.hpp:476
int p
Number of positive literals for node type.
Definition: bool-expr.cpp:232
ExecStatus
Definition: core.hpp:472