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precede.cpp
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1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Christopher Mears <Chris.Mears@monash.edu>
5  *
6  * Contributing authors:
7  * Christian Schulte <schulte@gecode.org>
8  * Guido Tack <tack@gecode.org>
9  *
10  * Copyright:
11  * Christopher Mears, 2011
12  * Christian Schulte, 2011
13  * Guido Tack, 2011
14  *
15  * This file is part of Gecode, the generic constraint
16  * development environment:
17  * http://www.gecode.org
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39 
40 #include <gecode/set/precede.hh>
41 
42 namespace Gecode {
43 
44  void
45  precede(Home home, const SetVarArgs& x, int s, int t) {
46  using namespace Set;
47  Limits::check(s,"Set::precede");
48  Limits::check(t,"Set::precede");
50 
51  ViewArray<SetView> y(home, x);
53  }
54 
55  void
56  precede(Home home, const SetVarArgs& x, const IntArgs& c) {
57  using namespace Set;
58  if (c.size() < 2)
59  return;
60  for (int i=c.size(); i--; )
61  Limits::check(c[i],"Set::precede");
63 
64  for (int i=c.size()-1; i--; ) {
65  ViewArray<SetView> y(home, x);
67  }
68  }
69 
70 }
71 
72 // STATISTICS: set-post
NodeType t
Type of node.
Definition: bool-expr.cpp:230
Node * x
Pointer to corresponding Boolean expression node.
Definition: bool-expr.cpp:249
FloatNum size(void) const
Return size of float value (distance between maximum and minimum)
Definition: val.hpp:78
Home class for posting propagators
Definition: core.hpp:856
Passing integer arguments.
Definition: int.hh:628
Single value precedence propagator.
Definition: precede.hh:61
Passing set variables.
Definition: set.hh:488
View arrays.
Definition: array.hpp:253
Post propagator for SetVar SetOpType SetVar y
Definition: set.hh:767
#define GECODE_POST
Check for failure in a constraint post function.
Definition: macros.hpp:40
#define GECODE_ES_FAIL(es)
Check whether execution status es is failed, and fail space home.
Definition: macros.hpp:103
void precede(Home home, const IntVarArgs &x, int s, int t, IntPropLevel)
Post propagator that s precedes t in x.
Definition: precede.cpp:43
void check(int n, const char *l)
Check whether integer n is in range, otherwise throw overflow exception with information l.
Definition: limits.hpp:37
Gecode::FloatVal c(-8, 8)
Gecode::IntArgs i({1, 2, 3, 4})