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int-base.hpp
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4  * Christian Schulte <schulte@gecode.org>
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7  * Christian Schulte, 2006
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10  * $Date: 2011-08-29 14:59:24 +0200 (Mon, 29 Aug 2011) $ by $Author: schulte $
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37 
38 namespace Gecode { namespace Int { namespace Count {
39 
40  template<class VX, class VY>
43  ViewArray<VX>& x0, int n_s0, VY y0, int c0)
44  : Propagator(home), x(x0), n_s(n_s0), y(y0), c(c0) {
45  if (vtd(y) == VTD_INTSET)
46  home.notice(*this,AP_DISPOSE);
47  for (int i=n_s; i--; )
48  x[i].subscribe(home,*this,PC_INT_DOM);
49  subscribe(home,*this,y);
50  }
51 
52  template<class VX, class VY>
53  forceinline size_t
55  if (vtd(y) == VTD_INTSET)
56  home.ignore(*this,AP_DISPOSE);
57  for (int i=n_s; i--; )
58  x[i].cancel(home,*this,PC_INT_DOM);
59  cancel(home,*this,y);
60  (void) Propagator::dispose(home);
61  return sizeof(*this);
62  }
63 
64  template<class VX, class VY>
67  : Propagator(home,share,p), n_s(p.n_s), c(p.c) {
68  x.update(home,share,p.x);
69  y.update(home,share,p.y);
70  }
71 
72  template<class VX, class VY>
73  PropCost
74  IntBase<VX,VY>::cost(const Space&, const ModEventDelta&) const {
75  return PropCost::linear(PropCost::LO,x.size());
76  }
77 
78 }}}
79 
80 // STATISTICS: int-prop
VY y
View to compare to.
Definition: count.hh:146
void update(Space &, bool share, ViewArray< View > &a)
Update array to be a clone of array a.
Definition: array.hpp:1387
ViewArray< VX > x
Views still to count.
Definition: count.hh:142
static PropCost linear(PropCost::Mod m, unsigned int n)
Linear complexity for modifier pcm and size measure n.
Definition: core.hpp:4041
int n_s
Views from x[0] ... x[n_s-1] have subscriptions.
Definition: count.hh:144
Actor must always be disposed.
Definition: core.hpp:610
void cancel(Space &home, Propagator &p, IntSet &y)
Definition: rel.hpp:84
Base-class for propagators.
Definition: core.hpp:755
Baseclass for count propagators (integer)
Definition: count.hh:139
Computation spaces.
Definition: core.hpp:1362
Gecode::FloatVal c(-8, 8)
int p
Number of positive literals for node type.
Definition: bool-expr.cpp:236
Gecode::IntArgs i(4, 1, 2, 3, 4)
void subscribe(Space &home, Propagator &p, IntSet &y)
Definition: rel.hpp:74
ViewTypeDesc vtd(VY y)
Return the view type description of y.
Definition: rel.hpp:49
virtual PropCost cost(const Space &home, const ModEventDelta &med) const
Cost function (defined as low linear)
Definition: int-base.hpp:74
const Gecode::PropCond PC_INT_DOM
Propagate when domain changes.
Definition: var-type.hpp:100
void notice(Actor &a, ActorProperty p, bool duplicate=false)
Notice actor property.
Definition: core.hpp:2849
Node * x
Pointer to corresponding Boolean expression node.
Definition: bool-expr.cpp:253
void ignore(Actor &a, ActorProperty p, bool duplicate=false)
Ignore actor property.
Definition: core.cpp:169
virtual size_t dispose(Space &home)
Delete actor and return its size.
Definition: core.hpp:2877
Propagation cost.
Definition: core.hpp:537
IntBase(Space &home, bool share, IntBase &p)
Constructor for cloning p.
Definition: int-base.hpp:66
virtual size_t dispose(Space &home)
Delete propagator and return its size.
Definition: int-base.hpp:54
#define forceinline
Definition: config.hpp:132
Gecode toplevel namespace
int ModEventDelta
Modification event deltas.
Definition: core.hpp:173
Home class for posting propagators
Definition: core.hpp:717