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channel.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  * Vincent Barichard <Vincent.Barichard@univ-angers.fr>
6  *
7  * Copyright:
8  * Christian Schulte, 2006
9  * Vincent Barichard, 2012
10  *
11  * Last modified:
12  * $Date: 2013-01-23 22:50:34 +0100 (Wed, 23 Jan 2013) $ by $Author: schulte $
13  * $Revision: 13232 $
14  *
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39 
40 #include "test/float.hh"
41 
42 #include <gecode/minimodel.hh>
43 
44 namespace Test { namespace Float {
45 
47  namespace Channel {
48 
50  class ChannelLinkSingle : public Test {
51  public:
54  : Test("Channel",2,-1,2,st,CPLT_ASSIGNMENT,false) {}
56  virtual MaybeType solution(const Assignment& x) const {
57  Gecode::FloatNum tmp;
58  return (((modf(x[0].min(),&tmp)==0) ||
59  (modf(x[0].max(),&tmp)==0))
60  && (x[0]==x[1])) ? MT_TRUE : MT_FALSE;
61  }
63  virtual void post(Gecode::Space& home, Gecode::FloatVarArray& x) {
64  using namespace Gecode;
65  Gecode::IntVar iv(home,-1000,1000);
66  channel(home, x[0], iv);
67  channel(home, x[1], iv);
68  }
69  };
70 
72 
73  ChannelLinkSingle cls(step);
75 
76  }
77 }}
78 
79 // STATISTICS: test-float
80 
Gecode::FloatNum step
Step for going to next solution.
Definition: float.hh:249
ChannelLinkSingle cls(step)
const FloatNum max
Largest allowed float value.
Definition: float.hh:831
Float variable array.
Definition: float.hh:1016
Computation spaces.
Definition: core.hpp:1362
const FloatNum min
Smallest allowed float value.
Definition: float.hh:833
Test channel between float and integer
Definition: channel.cpp:50
ChannelLinkSingle(Gecode::FloatNum st)
Construct and register test.
Definition: channel.cpp:53
General test support.
Definition: afc.cpp:43
virtual MaybeType solution(const Assignment &x) const
Check whether x is solution.
Definition: channel.cpp:56
Node * x
Pointer to corresponding Boolean expression node.
Definition: bool-expr.cpp:253
Integer variables.
Definition: int.hh:350
void channel(Home home, const SetVarArgs &x, const SetVarArgs &y)
Post propagator for .
Definition: channel.cpp:76
MaybeType
Type for comparisons and solutions.
Definition: float.hh:55
virtual void post(Gecode::Space &home, Gecode::FloatVarArray &x)
Post constraint on x.
Definition: channel.cpp:63
Gecode toplevel namespace
double FloatNum
Floating point number base type.
Definition: float.hh:108
Base class for assignments
Definition: float.hh:84