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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: 2011-11-03 11:52:07 +0100 (Thu, 03 Nov 2011) $ by $Author: tack $
15  * $Revision: 12452 $
16  *
17  * This file is part of Gecode, the generic constraint
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19  * http://www.gecode.org
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41 
42 #include <gecode/set.hh>
43 
44 #include <gecode/set/channel.hh>
45 
46 namespace Gecode {
47 
48  void
49  channelSorted(Home home, const IntVarArgs& x, SetVar y) {
50  if (home.failed()) return;
51  ViewArray<Int::IntView> xa(home,x);
53  }
54 
55  void
56  channel(Home home, const IntVarArgs& x, const SetVarArgs& y) {
57  if (home.failed()) return;
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) {
69  if (home.failed()) return;
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  {
78  if (home.failed()) return;
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
bool failed(void) const
Check whether corresponding space is failed.
Definition: core.hpp:3446
void channelSorted(Home home, const IntVarArgs &x, SetVar y)
Post propagator for and .
Definition: channel.cpp:49
Propagator for successors/predecessors channelling
Definition: channel.hh:224
void post(Home home, Term *t, int n, FloatRelType frt, FloatVal c)
Post propagator for linear constraint over floats.
Definition: post.cpp:228
void channel(Home home, FloatVar x0, IntVar x1)
Post propagator for channeling a float and an integer variable .
Definition: arithmetic.cpp:218
int size(void) const
Return size of array (number of elements)
Definition: array.hpp:1662
Gecode::IntArgs i(4, 1, 2, 3, 4)
Passing integer variables.
Definition: int.hh:636
Passing Boolean variables.
Definition: int.hh:690
Propagator for the sorted channel constraint
Definition: channel.hh:64
Passing set variables.
Definition: set.hh:490
Node * x
Pointer to corresponding Boolean expression node.
Definition: bool-expr.cpp:253
Set variables
Definition: set.hh:129
Cached integer view.
Definition: view.hpp:1107
Propagator for channelling between set variable and its characteristic function
Definition: channel.hh:148
Gecode toplevel namespace
Propagator for channelling between variable-value-dual models
Definition: channel.hh:107
Home class for posting propagators
Definition: core.hpp:717
#define GECODE_ES_FAIL(es)
Check whether execution status es is failed, and fail space home.
Definition: macros.hpp:96