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pattern.hpp

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00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
00002 /*
00003  *  Main authors:
00004  *     Christian Schulte <schulte@gecode.org>
00005  *     Guido Tack <tack@gecode.org>
00006  *
00007  *  Copyright:
00008  *     Christian Schulte, 2002
00009  *     Guido Tack, 2004
00010  *
00011  *  This file is part of Gecode, the generic constraint
00012  *  development environment:
00013  *     http://www.gecode.org
00014  *
00015  *  Permission is hereby granted, free of charge, to any person obtaining
00016  *  a copy of this software and associated documentation files (the
00017  *  "Software"), to deal in the Software without restriction, including
00018  *  without limitation the rights to use, copy, modify, merge, publish,
00019  *  distribute, sublicense, and/or sell copies of the Software, and to
00020  *  permit persons to whom the Software is furnished to do so, subject to
00021  *  the following conditions:
00022  *
00023  *  The above copyright notice and this permission notice shall be
00024  *  included in all copies or substantial portions of the Software.
00025  *
00026  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00027  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00028  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00029  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00030  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00031  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00032  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00033  *
00034  */
00035 
00036 namespace Gecode {
00037 
00054   template<class View, PropCond pc>
00055   class UnaryPropagator : public Propagator {
00056   protected:
00058     View x0;
00060     UnaryPropagator(Space& home, UnaryPropagator& p);
00062     UnaryPropagator(Space& home, Propagator& p, View x0);
00064     UnaryPropagator(Home home, View x0);
00065   public:
00067     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00069     virtual void reschedule(Space& home);
00071     virtual size_t dispose(Space& home);
00072   };
00073 
00083   template<class View, PropCond pc>
00084   class BinaryPropagator : public Propagator {
00085   protected:
00087     View x0, x1;
00089     BinaryPropagator(Space& home, BinaryPropagator& p);
00091     BinaryPropagator(Home home, View x0, View x1);
00093     BinaryPropagator(Space& home, Propagator& p, View x0, View x1);
00094   public:
00096     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00098     virtual void reschedule(Space& home);
00100     virtual size_t dispose(Space& home);
00101   };
00102 
00112   template<class View, PropCond pc>
00113   class TernaryPropagator : public Propagator {
00114   protected:
00116     View x0, x1, x2;
00118     TernaryPropagator(Space& home, TernaryPropagator& p);
00120     TernaryPropagator(Home home, View x0, View x1, View x2);
00122     TernaryPropagator(Space& home, Propagator& p, View x0, View x1, View x2);
00123   public:
00125     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00127     virtual void reschedule(Space& home);
00129     virtual size_t dispose(Space& home);
00130   };
00131 
00141   template<class View, PropCond pc>
00142   class NaryPropagator : public Propagator {
00143   protected:
00145     ViewArray<View> x;
00147     NaryPropagator(Space& home, NaryPropagator& p);
00149     NaryPropagator(Space& home, Propagator& p, ViewArray<View>& x);
00151     NaryPropagator(Home home, ViewArray<View>& x);
00152   public:
00154     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00156     virtual void reschedule(Space& home);
00158     virtual size_t dispose(Space& home);
00159   };
00160 
00171   template<class View, PropCond pc>
00172   class NaryOnePropagator : public Propagator {
00173   protected:
00175     ViewArray<View> x;
00177     View y;
00179     NaryOnePropagator(Space& home, NaryOnePropagator& p);
00181     NaryOnePropagator(Space& home, Propagator& p, ViewArray<View>& x, View y);
00183     NaryOnePropagator(Home home, ViewArray<View>& x, View y);
00184   public:
00186     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00188     virtual void reschedule(Space& home);
00190     virtual size_t dispose(Space& home);
00191   };
00192 
00203   template<class View0, PropCond pc0, class View1, PropCond pc1>
00204   class MixBinaryPropagator : public Propagator {
00205   protected:
00207     View0 x0;
00209     View1 x1;
00211     MixBinaryPropagator(Space& home, MixBinaryPropagator& p);
00213     MixBinaryPropagator(Home home, View0 x0, View1 x1);
00215     MixBinaryPropagator(Space& home, Propagator& p, View0 x0, View1 x1);
00216   public:
00218     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00220     virtual void reschedule(Space& home);
00222     virtual size_t dispose(Space& home);
00223   };
00224 
00235   template<class View0, PropCond pc0, class View1, PropCond pc1,
00236             class View2, PropCond pc2>
00237   class MixTernaryPropagator : public Propagator {
00238   protected:
00240     View0 x0;
00242     View1 x1;
00244     View2 x2;
00246     MixTernaryPropagator(Space& home, MixTernaryPropagator& p);
00248     MixTernaryPropagator(Home home, View0 x0, View1 x1, View2 x2);
00250     MixTernaryPropagator(Space& home, Propagator& p,
00251                          View0 x0, View1 x1, View2 x2);
00252   public:
00254     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00256     virtual void reschedule(Space& home);
00258     virtual size_t dispose(Space& home);
00259   };
00260 
00271   template<class View0, PropCond pc0, class View1, PropCond pc1>
00272   class MixNaryOnePropagator : public Propagator {
00273   protected:
00275     ViewArray<View0> x;
00277     View1 y;
00279     MixNaryOnePropagator(Space& home, MixNaryOnePropagator& p);
00281     MixNaryOnePropagator(Home home, ViewArray<View0>& x, View1 y);
00283     MixNaryOnePropagator(Space& home, Propagator& p,
00284                          ViewArray<View0>& x, View1 y);
00285   public:
00287     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00289     virtual void reschedule(Space& home);
00291     virtual size_t dispose(Space& home);
00292   };
00294 
00295 
00296   /*
00297    * Unary propagators
00298    *
00299    */
00300 
00301   template<class View, PropCond pc>
00302   UnaryPropagator<View,pc>::UnaryPropagator(Home home, View y0)
00303     : Propagator(home), x0(y0) {
00304     if (pc != PC_GEN_NONE)
00305       x0.subscribe(home,*this,pc);
00306   }
00307 
00308   template<class View, PropCond pc>
00309   forceinline
00310   UnaryPropagator<View,pc>::UnaryPropagator
00311   (Space& home, UnaryPropagator<View,pc>& p)
00312     : Propagator(home,p) {
00313     x0.update(home,p.x0);
00314   }
00315 
00316   template<class View, PropCond pc>
00317   forceinline
00318   UnaryPropagator<View,pc>::UnaryPropagator
00319   (Space& home, Propagator& p, View y0)
00320     : Propagator(home,p) {
00321     x0.update(home,y0);
00322   }
00323 
00324   template<class View, PropCond pc>
00325   PropCost
00326   UnaryPropagator<View,pc>::cost(const Space&, const ModEventDelta&) const {
00327     return PropCost::unary(PropCost::LO);
00328   }
00329 
00330   template<class View, PropCond pc>
00331   void
00332   UnaryPropagator<View,pc>::reschedule(Space& home) {
00333     if (pc != PC_GEN_NONE)
00334       x0.reschedule(home,*this,pc);
00335   }
00336 
00337   template<class View, PropCond pc>
00338   forceinline size_t
00339   UnaryPropagator<View,pc>::dispose(Space& home) {
00340     if (pc != PC_GEN_NONE)
00341       x0.cancel(home,*this,pc);
00342     (void) Propagator::dispose(home);
00343     return sizeof(*this);
00344   }
00345 
00346 
00347   /*
00348    * Binary propagators
00349    *
00350    */
00351 
00352   template<class View, PropCond pc>
00353   BinaryPropagator<View,pc>::BinaryPropagator(Home home, View y0, View y1)
00354     : Propagator(home), x0(y0), x1(y1) {
00355     if (pc != PC_GEN_NONE) {
00356       x0.subscribe(home,*this,pc);
00357       x1.subscribe(home,*this,pc);
00358     }
00359   }
00360 
00361   template<class View, PropCond pc>
00362   forceinline
00363   BinaryPropagator<View,pc>::BinaryPropagator
00364   (Space& home, BinaryPropagator<View,pc>& p)
00365     : Propagator(home,p) {
00366     x0.update(home,p.x0);
00367     x1.update(home,p.x1);
00368   }
00369 
00370   template<class View, PropCond pc>
00371   forceinline
00372   BinaryPropagator<View,pc>::BinaryPropagator
00373   (Space& home, Propagator& p, View y0, View y1)
00374     : Propagator(home,p) {
00375     x0.update(home,y0);
00376     x1.update(home,y1);
00377   }
00378 
00379   template<class View, PropCond pc>
00380   PropCost
00381   BinaryPropagator<View,pc>::cost(const Space&, const ModEventDelta&) const {
00382     return PropCost::binary(PropCost::LO);
00383   }
00384 
00385   template<class View, PropCond pc>
00386   void
00387   BinaryPropagator<View,pc>::reschedule(Space& home) {
00388     if (pc != PC_GEN_NONE) {
00389       x0.reschedule(home,*this,pc);
00390       x1.reschedule(home,*this,pc);
00391     }
00392   }
00393 
00394   template<class View, PropCond pc>
00395   forceinline size_t
00396   BinaryPropagator<View,pc>::dispose(Space& home) {
00397     if (pc != PC_GEN_NONE) {
00398       x0.cancel(home,*this,pc);
00399       x1.cancel(home,*this,pc);
00400     }
00401     (void) Propagator::dispose(home);
00402     return sizeof(*this);
00403   }
00404 
00405   /*
00406    * Ternary propagators
00407    *
00408    */
00409 
00410   template<class View, PropCond pc>
00411   TernaryPropagator<View,pc>::TernaryPropagator
00412   (Home home, View y0, View y1, View y2)
00413     : Propagator(home), x0(y0), x1(y1), x2(y2) {
00414     if (pc != PC_GEN_NONE) {
00415       x0.subscribe(home,*this,pc);
00416       x1.subscribe(home,*this,pc);
00417       x2.subscribe(home,*this,pc);
00418     }
00419   }
00420 
00421   template<class View, PropCond pc>
00422   forceinline
00423   TernaryPropagator<View,pc>::TernaryPropagator
00424   (Space& home, TernaryPropagator<View,pc>& p)
00425     : Propagator(home,p) {
00426     x0.update(home,p.x0);
00427     x1.update(home,p.x1);
00428     x2.update(home,p.x2);
00429   }
00430 
00431   template<class View, PropCond pc>
00432   forceinline
00433   TernaryPropagator<View,pc>::TernaryPropagator
00434   (Space& home, Propagator& p, View y0, View y1, View y2)
00435     : Propagator(home,p) {
00436     x0.update(home,y0);
00437     x1.update(home,y1);
00438     x2.update(home,y2);
00439   }
00440 
00441   template<class View, PropCond pc>
00442   PropCost
00443   TernaryPropagator<View,pc>::cost(const Space&, const ModEventDelta&) const {
00444     return PropCost::ternary(PropCost::LO);;
00445   }
00446 
00447   template<class View, PropCond pc>
00448   void
00449   TernaryPropagator<View,pc>::reschedule(Space& home) {
00450     if (pc != PC_GEN_NONE) {
00451       x0.reschedule(home,*this,pc);
00452       x1.reschedule(home,*this,pc);
00453       x2.reschedule(home,*this,pc);
00454     }
00455   }
00456 
00457   template<class View, PropCond pc>
00458   forceinline size_t
00459   TernaryPropagator<View,pc>::dispose(Space& home) {
00460     if (pc != PC_GEN_NONE) {
00461       x0.cancel(home,*this,pc);
00462       x1.cancel(home,*this,pc);
00463       x2.cancel(home,*this,pc);
00464     }
00465     (void) Propagator::dispose(home);
00466     return sizeof(*this);
00467   }
00468 
00469   /*
00470    * Nary propagators
00471    *
00472    */
00473 
00474   template<class View, PropCond pc>
00475   NaryPropagator<View,pc>::NaryPropagator
00476   (Home home, ViewArray<View>& y)
00477     : Propagator(home), x(y) {
00478     if (pc != PC_GEN_NONE)
00479       x.subscribe(home,*this,pc);
00480   }
00481 
00482   template<class View, PropCond pc>
00483   forceinline
00484   NaryPropagator<View,pc>::NaryPropagator
00485   (Space& home, NaryPropagator<View,pc>& p)
00486     : Propagator(home,p) {
00487     x.update(home,p.x);
00488   }
00489 
00490   template<class View, PropCond pc>
00491   forceinline
00492   NaryPropagator<View,pc>::NaryPropagator
00493   (Space& home, Propagator& p, ViewArray<View>& x0)
00494     : Propagator(home,p) {
00495     x.update(home,x0);
00496   }
00497 
00498   template<class View, PropCond pc>
00499   PropCost
00500   NaryPropagator<View,pc>::cost(const Space&, const ModEventDelta&) const {
00501     return PropCost::linear(PropCost::LO,x.size());
00502   }
00503 
00504   template<class View, PropCond pc>
00505   void
00506   NaryPropagator<View,pc>::reschedule(Space& home) {
00507     if (pc != PC_GEN_NONE)
00508       x.reschedule(home,*this,pc);
00509   }
00510 
00511   template<class View, PropCond pc>
00512   forceinline size_t
00513   NaryPropagator<View,pc>::dispose(Space& home) {
00514     if (pc != PC_GEN_NONE)
00515       x.cancel(home,*this,pc);
00516     (void) Propagator::dispose(home);
00517     return sizeof(*this);
00518   }
00519 
00520   /*
00521    * NaryOne (one additional variable) propagators
00522    *
00523    */
00524 
00525   template<class View, PropCond pc>
00526   NaryOnePropagator<View,pc>::NaryOnePropagator
00527   (Home home, ViewArray<View>& x0, View y0)
00528     : Propagator(home), x(x0), y(y0) {
00529     if (pc != PC_GEN_NONE) {
00530       x.subscribe(home,*this,pc);
00531       y.subscribe(home,*this,pc);
00532     }
00533   }
00534 
00535   template<class View, PropCond pc>
00536   forceinline
00537   NaryOnePropagator<View,pc>::NaryOnePropagator
00538   (Space& home, NaryOnePropagator<View,pc>& p)
00539     : Propagator(home,p) {
00540     x.update(home,p.x);
00541     y.update(home,p.y);
00542   }
00543 
00544   template<class View, PropCond pc>
00545   forceinline
00546   NaryOnePropagator<View,pc>::NaryOnePropagator
00547   (Space& home, Propagator& p, ViewArray<View>& x0, View y0)
00548     : Propagator(home,p) {
00549     x.update(home,x0);
00550     y.update(home,y0);
00551   }
00552 
00553   template<class View, PropCond pc>
00554   PropCost
00555   NaryOnePropagator<View,pc>::cost(const Space&, const ModEventDelta&) const {
00556     return PropCost::linear(PropCost::LO,x.size()+1);
00557   }
00558 
00559   template<class View, PropCond pc>
00560   void
00561   NaryOnePropagator<View,pc>::reschedule(Space& home) {
00562     if (pc != PC_GEN_NONE) {
00563       x.reschedule(home,*this,pc);
00564       y.reschedule(home,*this,pc);
00565     }
00566   }
00567 
00568   template<class View, PropCond pc>
00569   forceinline size_t
00570   NaryOnePropagator<View,pc>::dispose(Space& home) {
00571     if (pc != PC_GEN_NONE) {
00572       x.cancel(home,*this,pc);
00573       y.cancel(home,*this,pc);
00574     }
00575     (void) Propagator::dispose(home);
00576     return sizeof(*this);
00577   }
00578 
00579   /*
00580    * Mixed binary propagators
00581    *
00582    */
00583 
00584   template<class View0, PropCond pc0, class View1, PropCond pc1>
00585   MixBinaryPropagator<View0,pc0,View1,pc1>::MixBinaryPropagator
00586   (Home home, View0 y0, View1 y1)
00587     : Propagator(home), x0(y0), x1(y1) {
00588     if (pc0 != PC_GEN_NONE)
00589       x0.subscribe(home,*this,pc0);
00590     if (pc1 != PC_GEN_NONE)
00591       x1.subscribe(home,*this,pc1);
00592   }
00593 
00594   template<class View0, PropCond pc0, class View1, PropCond pc1>
00595   forceinline
00596   MixBinaryPropagator<View0,pc0,View1,pc1>::MixBinaryPropagator
00597   (Space& home, MixBinaryPropagator<View0,pc0,View1,pc1>& p)
00598     : Propagator(home,p) {
00599     x0.update(home,p.x0);
00600     x1.update(home,p.x1);
00601   }
00602 
00603   template<class View0, PropCond pc0, class View1, PropCond pc1>
00604   forceinline
00605   MixBinaryPropagator<View0,pc0,View1,pc1>::MixBinaryPropagator
00606   (Space& home, Propagator& p, View0 y0, View1 y1)
00607     : Propagator(home,p) {
00608     x0.update(home,y0);
00609     x1.update(home,y1);
00610   }
00611 
00612   template<class View0, PropCond pc0, class View1, PropCond pc1>
00613   PropCost
00614   MixBinaryPropagator<View0,pc0,View1,pc1>::cost(const Space&,
00615                                                  const ModEventDelta&) const {
00616     return PropCost::binary(PropCost::LO);
00617   }
00618 
00619   template<class View0, PropCond pc0, class View1, PropCond pc1>
00620   void
00621   MixBinaryPropagator<View0,pc0,View1,pc1>::reschedule(Space& home) {
00622     if (pc0 != PC_GEN_NONE)
00623       x0.reschedule(home,*this,pc0);
00624     if (pc1 != PC_GEN_NONE)
00625       x1.reschedule(home,*this,pc1);
00626   }
00627 
00628   template<class View0, PropCond pc0, class View1, PropCond pc1>
00629   forceinline size_t
00630   MixBinaryPropagator<View0,pc0,View1,pc1>::dispose(Space& home) {
00631     if (pc0 != PC_GEN_NONE)
00632       x0.cancel(home,*this,pc0);
00633     if (pc1 != PC_GEN_NONE)
00634       x1.cancel(home,*this,pc1);
00635     (void) Propagator::dispose(home);
00636     return sizeof(*this);
00637   }
00638 
00639   /*
00640    * Mixed ternary propagators
00641    *
00642    */
00643 
00644   template<class View0, PropCond pc0, class View1, PropCond pc1,
00645             class View2, PropCond pc2>
00646   MixTernaryPropagator<View0,pc0,View1,pc1,View2,pc2>::
00647   MixTernaryPropagator(Home home, View0 y0, View1 y1, View2 y2)
00648     : Propagator(home), x0(y0), x1(y1), x2(y2) {
00649     if (pc0 != PC_GEN_NONE)
00650       x0.subscribe(home,*this,pc0);
00651     if (pc1 != PC_GEN_NONE)
00652       x1.subscribe(home,*this,pc1);
00653     if (pc2 != PC_GEN_NONE)
00654       x2.subscribe(home,*this,pc2);
00655   }
00656 
00657   template<class View0, PropCond pc0, class View1, PropCond pc1,
00658             class View2, PropCond pc2>
00659   forceinline
00660   MixTernaryPropagator<View0,pc0,View1,pc1,View2,pc2>::
00661   MixTernaryPropagator(Space& home,
00662                          MixTernaryPropagator<View0,pc0,View1,pc1,
00663                          View2,pc2>& p)
00664     : Propagator(home,p) {
00665     x0.update(home,p.x0);
00666     x1.update(home,p.x1);
00667     x2.update(home,p.x2);
00668   }
00669 
00670   template<class View0, PropCond pc0, class View1, PropCond pc1,
00671             class View2, PropCond pc2>
00672   forceinline
00673   MixTernaryPropagator<View0,pc0,View1,pc1,View2,pc2>::MixTernaryPropagator
00674   (Space& home, Propagator& p, View0 y0, View1 y1, View2 y2)
00675     : Propagator(home,p) {
00676     x0.update(home,y0);
00677     x1.update(home,y1);
00678     x2.update(home,y2);
00679   }
00680 
00681   template<class View0, PropCond pc0, class View1, PropCond pc1,
00682             class View2, PropCond pc2>
00683   PropCost
00684   MixTernaryPropagator<View0,pc0,View1,pc1,View2,pc2>::
00685   cost(const Space&, const ModEventDelta&) const {
00686     return PropCost::ternary(PropCost::LO);
00687   }
00688 
00689   template<class View0, PropCond pc0, class View1, PropCond pc1,
00690             class View2, PropCond pc2>
00691   void
00692   MixTernaryPropagator<View0,pc0,View1,pc1,View2,pc2>::reschedule(Space& home) {
00693     if (pc0 != PC_GEN_NONE)
00694       x0.reschedule(home,*this,pc0);
00695     if (pc1 != PC_GEN_NONE)
00696       x1.reschedule(home,*this,pc1);
00697     if (pc2 != PC_GEN_NONE)
00698       x2.reschedule(home,*this,pc2);
00699   }
00700 
00701   template<class View0, PropCond pc0, class View1, PropCond pc1,
00702             class View2, PropCond pc2>
00703   forceinline size_t
00704   MixTernaryPropagator<View0,pc0,View1,pc1,View2,pc2>::dispose(Space& home) {
00705     if (pc0 != PC_GEN_NONE)
00706       x0.cancel(home,*this,pc0);
00707     if (pc1 != PC_GEN_NONE)
00708       x1.cancel(home,*this,pc1);
00709     if (pc2 != PC_GEN_NONE)
00710       x2.cancel(home,*this,pc2);
00711     (void) Propagator::dispose(home);
00712     return sizeof(*this);
00713   }
00714 
00715   /*
00716    * MixNaryOne (one additional variable) propagators
00717    *
00718    */
00719 
00720   template<class View0, PropCond pc0, class View1, PropCond pc1>
00721   MixNaryOnePropagator<View0,pc0,View1,pc1>::MixNaryOnePropagator
00722   (Home home, ViewArray<View0>& x0, View1 y0)
00723     : Propagator(home), x(x0), y(y0) {
00724     if (pc0 != PC_GEN_NONE)
00725       x.subscribe(home,*this,pc0);
00726     if (pc1 != PC_GEN_NONE)
00727       y.subscribe(home,*this,pc1);
00728   }
00729 
00730   template<class View0, PropCond pc0, class View1, PropCond pc1>
00731   forceinline
00732   MixNaryOnePropagator<View0,pc0,View1,pc1>::MixNaryOnePropagator
00733   (Space& home, MixNaryOnePropagator<View0,pc0,View1,pc1>& p)
00734     : Propagator(home,p) {
00735     x.update(home,p.x);
00736     y.update(home,p.y);
00737   }
00738 
00739   template<class View0, PropCond pc0, class View1, PropCond pc1>
00740   forceinline
00741   MixNaryOnePropagator<View0,pc0,View1,pc1>::MixNaryOnePropagator
00742   (Space& home, Propagator& p, ViewArray<View0>& x0, View1 y0)
00743     : Propagator(home,p) {
00744     x.update(home,x0);
00745     y.update(home,y0);
00746   }
00747 
00748   template<class View0, PropCond pc0, class View1, PropCond pc1>
00749   PropCost
00750   MixNaryOnePropagator<View0,pc0,View1,pc1>::cost(const Space&,
00751                                                   const ModEventDelta&) const {
00752     return PropCost::linear(PropCost::LO,x.size()+1);
00753   }
00754 
00755   template<class View0, PropCond pc0, class View1, PropCond pc1>
00756   void
00757   MixNaryOnePropagator<View0,pc0,View1,pc1>::reschedule(Space& home) {
00758     if (pc0 != PC_GEN_NONE)
00759       x.reschedule(home,*this,pc0);
00760     if (pc1 != PC_GEN_NONE)
00761       y.reschedule(home,*this,pc1);
00762   }
00763 
00764   template<class View0, PropCond pc0, class View1, PropCond pc1>
00765   forceinline size_t
00766   MixNaryOnePropagator<View0,pc0,View1,pc1>::dispose(Space& home) {
00767     if (pc0 != PC_GEN_NONE)
00768       x.cancel(home,*this,pc0);
00769     if (pc1 != PC_GEN_NONE)
00770       y.cancel(home,*this,pc1);
00771     (void) Propagator::dispose(home);
00772     return sizeof(*this);
00773   }
00774 
00775 }
00776 
00777 // STATISTICS: kernel-prop