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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  * Denys Duchier <denys.duchier@univ-orleans.fr>
5  * Guido Tack <tack@gecode.org>
6  * Christian Schulte <schulte@gecode.org>
7  *
8  * Copyright:
9  * Denys Duchier, 2011
10  * Guido Tack, 2004
11  * Christian Schulte, 2004
12  *
13  * Last modified:
14  * $Date$ by $Author$
15  * $Revision$
16  *
17  * This file is part of Gecode, the generic constraint
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41 
42 #include <gecode/set.hh>
43 
44 #include <gecode/set/channel.hh>
45 
46 namespace Gecode {
47 
48  void
51  ViewArray<Int::IntView> xa(home,x);
53  }
54 
55  void
56  channel(Home home, const IntVarArgs& x, const SetVarArgs& y) {
59  for (int i=x.size(); i--;)
60  new (&xa[i]) Int::CachedView<Int::IntView>(x[i]);
62  for (int i=y.size(); i--;)
63  new (&ya[i]) Set::CachedView<Set::SetView>(y[i]);
65  }
66 
67  void
68  channel(Home home, const BoolVarArgs& x, SetVar y) {
70  ViewArray<Int::BoolView> xv(home,x);
72  ::post(home,xv,y)));
73  }
74 
75  void
76  channel(Home home, const SetVarArgs& x, const SetVarArgs& y)
77  {
80  for (int i=x.size(); i--;)
81  new (&xa[i]) Int::CachedView<Set::SetView>(x[i]);
83  for (int i=y.size(); i--;)
84  new (&ya[i]) Set::CachedView<Set::SetView>(y[i]);
86  }
87 
88 }
89 
90 // STATISTICS: set-post
void channelSorted(Home home, const IntVarArgs &x, SetVar y)
Definition: channel.cpp:49
Propagator for successors/predecessors channelling
Definition: channel.hh:230
int size(void) const
Return size of array (number of elements)
Definition: array.hpp:1657
void channel(Home home, FloatVar x0, IntVar x1)
Post propagator for channeling a float and an integer variable .
Definition: channel.cpp:45
Gecode::IntArgs i(4, 1, 2, 3, 4)
Passing integer variables.
Definition: int.hh:637
Passing Boolean variables.
Definition: int.hh:691
Propagator for the sorted channel constraint
Definition: channel.hh:64
Passing set variables.
Definition: set.hh:492
Post propagator for SetVar SetOpType SetVar y
Definition: set.hh:769
Set variables
Definition: set.hh:131
Cached integer view.
Definition: view.hpp:1119
Post propagator for SetVar x
Definition: set.hh:769
Propagator for channelling between set variable and its characteristic function
Definition: channel.hh:152
Gecode toplevel namespace
Propagator for channelling between variable-value-dual models
Definition: channel.hh:109
#define GECODE_POST
Check for failure in a constraint post function.
Definition: macros.hpp:44
Home class for posting propagators
Definition: core.hpp:846
#define GECODE_ES_FAIL(es)
Check whether execution status es is failed, and fail space home.
Definition: macros.hpp:107
TFE post(PropagatorGroup g)
Only post functions (but not propagators) from g are considered.
Definition: filter.cpp:142