bool.hh

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  *  Last modified:
00012  *     $Date: 2016-06-29 17:28:17 +0200 (Wed, 29 Jun 2016) $ by $Author: schulte $
00013  *     $Revision: 15137 $
00014  *
00015  *  This file is part of Gecode, the generic constraint
00016  *  development environment:
00017  *     http://www.gecode.org
00018  *
00019  *  Permission is hereby granted, free of charge, to any person obtaining
00020  *  a copy of this software and associated documentation files (the
00021  *  "Software"), to deal in the Software without restriction, including
00022  *  without limitation the rights to use, copy, modify, merge, publish,
00023  *  distribute, sublicense, and/or sell copies of the Software, and to
00024  *  permit persons to whom the Software is furnished to do so, subject to
00025  *  the following conditions:
00026  *
00027  *  The above copyright notice and this permission notice shall be
00028  *  included in all copies or substantial portions of the Software.
00029  *
00030  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00031  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00032  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00033  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00034  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00035  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00036  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00037  *
00038  */
00039 
00040 #ifndef __GECODE_INT_BOOL_HH__
00041 #define __GECODE_INT_BOOL_HH__
00042 
00043 #include <gecode/int.hh>
00044 
00050 namespace Gecode { namespace Int { namespace Bool {
00051 
00052   /*
00053    * Base Classes
00054    *
00055    */
00056 
00058   template<class BVA, class BVB>
00059   class BoolBinary : public Propagator {
00060   protected:
00061     BVA x0; 
00062     BVB x1; 
00063 
00064     BoolBinary(Home home, BVA b0, BVB b1);
00066     BoolBinary(Space& home, bool share, BoolBinary& p);
00068     BoolBinary(Space& home, bool share, Propagator& p,
00069                BVA b0, BVB b1);
00070   public:
00072     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00074     virtual void reschedule(Space& home);
00076     virtual size_t dispose(Space& home);
00077   };
00078 
00080   template<class BVA, class BVB, class BVC>
00081   class BoolTernary : public Propagator {
00082   protected:
00083     BVA x0; 
00084     BVB x1; 
00085     BVC x2; 
00086 
00087     BoolTernary(Home home, BVA b0, BVB b1, BVC b2);
00089     BoolTernary(Space& home, bool share, BoolTernary& p);
00090   public:
00092     BoolTernary(Space& home, bool share, Propagator& p,
00093                 BVA b0, BVB b1, BVC b2);
00095     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00097     virtual void reschedule(Space& home);
00099     virtual size_t dispose(Space& home);
00100   };
00101 
00108   template<class BVA, class BVB>
00109   class Eq : public BoolBinary<BVA,BVB> {
00110   protected:
00111     using BoolBinary<BVA,BVB>::x0;
00112     using BoolBinary<BVA,BVB>::x1;
00114     Eq(Home home, BVA b0, BVB b1);
00116     Eq(Space& home, bool share, Eq& p);
00117   public:
00119     Eq(Space& home, bool share, Propagator& p,
00120        BVA b0, BVB b1);
00122     virtual Actor* copy(Space& home, bool share);
00124     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00126     static  ExecStatus post(Home home, BVA x0, BVB x1);
00127   };
00128 
00129 
00136   template<class BV>
00137   class NaryEq : public NaryPropagator<BV,PC_BOOL_VAL> {
00138   protected:
00139     using NaryPropagator<BV,PC_BOOL_VAL>::x;
00141     NaryEq(Home home, ViewArray<BV>& x);
00143     NaryEq(Space& home, bool share, NaryEq& p);
00144   public:
00146     virtual Actor* copy(Space& home, bool share);
00148     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00150     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00152     static  ExecStatus post(Home home, ViewArray<BV>& x);
00153   };
00154 
00155 
00162   template<class BV>
00163   class Lq : public BoolBinary<BV,BV> {
00164   protected:
00165     using BoolBinary<BV,BV>::x0;
00166     using BoolBinary<BV,BV>::x1;
00168     Lq(Home home, BV b0, BV b1);
00170     Lq(Space& home, bool share, Lq& p);
00171   public:
00173     virtual Actor* copy(Space& home, bool share);
00175     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00177     static  ExecStatus post(Home home, BV b0, BV b1);
00178   };
00179 
00186   template<class VX>
00187   class NaryLq : public NaryPropagator<VX,PC_BOOL_NONE> {
00188   protected:
00189     using NaryPropagator<VX,PC_BOOL_NONE>::x;
00191     bool run;
00193     int n_zero;
00195     int n_one;
00197     Council<Advisor> c;
00199     NaryLq(Home home,  ViewArray<VX>& x);
00201     NaryLq(Space& home, bool share, NaryLq<VX>& p);
00202   public:
00204     virtual Actor* copy(Space& home, bool share);
00206     virtual ExecStatus advise(Space& home, Advisor& a, const Delta& d);
00208     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00210     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00212     static  ExecStatus post(Home home, ViewArray<VX>& x);
00214     virtual size_t dispose(Space& home);
00215   };
00216 
00217 
00218 
00219 
00226   template<class BV>
00227   class Le {
00228   public:
00230     static  ExecStatus post(Home home, BV b0, BV b1);
00231   };
00232 
00233 
00240   template<class BVA, class BVB>
00241   class BinOrTrue : public BoolBinary<BVA,BVB> {
00242   protected:
00243     using BoolBinary<BVA,BVB>::x0;
00244     using BoolBinary<BVA,BVB>::x1;
00246     BinOrTrue(Home home, BVA b0, BVB b1);
00248     BinOrTrue(Space& home, bool share, BinOrTrue& p);
00249   public:
00251     BinOrTrue(Space& home, bool share, Propagator& p,
00252               BVA b0, BVB b1);
00254     virtual Actor* copy(Space& home, bool share);
00256     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00258     static  ExecStatus post(Home home, BVA b0, BVB b1);
00259   };
00260 
00267   template<class BV>
00268   class TerOrTrue : public BoolBinary<BV,BV> {
00269   protected:
00270     using BoolBinary<BV,BV>::x0;
00271     using BoolBinary<BV,BV>::x1;
00273     BV x2;
00275     TerOrTrue(Home home, BV b0, BV b1, BV b2);
00277     TerOrTrue(Space& home, bool share, TerOrTrue& p);
00278   public:
00280     TerOrTrue(Space& home, bool share, Propagator& p,
00281               BV b0, BV b1, BV b2);
00283     virtual Actor* copy(Space& home, bool share);
00285     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00287     static  ExecStatus post(Home home, BV b0, BV b1, BV b2);
00289     virtual size_t dispose(Space& home);
00290   };
00291 
00298   template<class BV>
00299   class QuadOrTrue : public BoolBinary<BV,BV> {
00300   protected:
00301     using BoolBinary<BV,BV>::x0;
00302     using BoolBinary<BV,BV>::x1;
00304     BV x2;
00306     BV x3;
00308     QuadOrTrue(Home home, BV b0, BV b1, BV b2, BV b3);
00310     QuadOrTrue(Space& home, bool share, QuadOrTrue& p);
00311   public:
00313     QuadOrTrue(Space& home, bool share, Propagator& p,
00314                BV b0, BV b1, BV b2, BV b3);
00316     virtual Actor* copy(Space& home, bool share);
00318     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00320     static  ExecStatus post(Home home, BV b0, BV b1, BV b2, BV b3);
00322     virtual size_t dispose(Space& home);
00323   };
00324 
00331   template<class BVA, class BVB, class BVC>
00332   class Or : public BoolTernary<BVA,BVB,BVC> {
00333   protected:
00334     using BoolTernary<BVA,BVB,BVC>::x0;
00335     using BoolTernary<BVA,BVB,BVC>::x1;
00336     using BoolTernary<BVA,BVB,BVC>::x2;
00338     Or(Home home, BVA b0, BVB b1, BVC b2);
00340     Or(Space& home, bool share, Or& p);
00341   public:
00343     Or(Space& home, bool share, Propagator& p, BVA b0, BVB b1, BVC b2);
00345     virtual Actor* copy(Space& home, bool share);
00347     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00349     static  ExecStatus post(Home home, BVA b0, BVB b1, BVC b2);
00350   };
00351 
00358   template<class VX,class VY>
00359   class NaryOr
00360     : public MixNaryOnePropagator<VX,PC_BOOL_NONE,VY,PC_BOOL_VAL> {
00361   protected:
00362     using MixNaryOnePropagator<VX,PC_BOOL_NONE,VY,PC_BOOL_VAL>::x;
00363     using MixNaryOnePropagator<VX,PC_BOOL_NONE,VY,PC_BOOL_VAL>::y;
00365     int n_zero;
00367     Council<Advisor> c;
00369     NaryOr(Home home,  ViewArray<VX>& x, VY y);
00371     NaryOr(Space& home, bool share, NaryOr<VX,VY>& p);
00372   public:
00374     virtual Actor* copy(Space& home, bool share);
00376     virtual ExecStatus advise(Space& home, Advisor& a, const Delta& d);
00378     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00380     virtual void reschedule(Space& home);
00382     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00384     static  ExecStatus post(Home home, ViewArray<VX>& x, VY y);
00386     virtual size_t dispose(Space& home);
00387   };
00388 
00389 
00396   template<class BV>
00397   class NaryOrTrue : public BinaryPropagator<BV,PC_BOOL_VAL> {
00398   protected:
00399     using BinaryPropagator<BV,PC_BOOL_VAL>::x0;
00400     using BinaryPropagator<BV,PC_BOOL_VAL>::x1;
00402     ViewArray<BV> x;
00404     ExecStatus resubscribe(Space& home, BV& x0, BV x1);
00406     NaryOrTrue(Home home, ViewArray<BV>& x);
00408     NaryOrTrue(Space& home, bool share, NaryOrTrue<BV>& p);
00409   public:
00411     virtual Actor* copy(Space& home, bool share);
00413     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00415     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00417     static  ExecStatus post(Home home, ViewArray<BV>& b);
00419     virtual size_t dispose(Space& home);
00420   };
00421 
00422 
00429   template<class BVA, class BVB, class BVC>
00430   class Eqv : public BoolTernary<BVA,BVB,BVC> {
00431   protected:
00432     using BoolTernary<BVA,BVB,BVC>::x0;
00433     using BoolTernary<BVA,BVB,BVC>::x1;
00434     using BoolTernary<BVA,BVB,BVC>::x2;
00436     Eqv(Space& home, bool share, Eqv& p);
00438     Eqv(Home home, BVA b0 ,BVB b1, BVC b2);
00439   public:
00441     virtual Actor* copy(Space& home, bool share);
00443     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00445     static  ExecStatus post(Home home, BVA b0, BVB b1, BVC b2);
00446   };
00447 
00448 
00457   class NaryEqv : public BinaryPropagator<BoolView,PC_BOOL_VAL> {
00458   protected:
00459     using BinaryPropagator<BoolView,PC_BOOL_VAL>::x0;
00460     using BinaryPropagator<BoolView,PC_BOOL_VAL>::x1;
00462     ViewArray<BoolView> x;
00464     int pm2;
00466     void resubscribe(Space& home, BoolView& x0);
00468     NaryEqv(Home home, ViewArray<BoolView>& x, int pm2);
00470     NaryEqv(Space& home, bool share, NaryEqv& p);
00471   public:
00473     GECODE_INT_EXPORT
00474     virtual Actor* copy(Space& home, bool share);
00476     GECODE_INT_EXPORT
00477     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00479     GECODE_INT_EXPORT
00480     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00482     GECODE_INT_EXPORT
00483     static ExecStatus post(Home home, ViewArray<BoolView>& x, int pm2);
00485     virtual size_t dispose(Space& home);
00486   };
00487 
00488 
00495   template<class VX, class VY>
00496   class Clause : public Propagator {
00497   protected:
00499     ViewArray<VX> x;
00501     ViewArray<VY> y;
00503     VX z;
00505     int n_zero;
00507     class Tagged : public Advisor {
00508     public:
00510       const bool x;
00512       Tagged(Space& home, Propagator& p, Council<Tagged>& c, bool x);
00514       Tagged(Space& home, bool share, Tagged& a);
00515     };
00517     Council<Tagged> c;
00519     void cancel(Space& home);
00521     Clause(Home home,  ViewArray<VX>& x, ViewArray<VY>& y, VX z);
00523     Clause(Space& home, bool share, Clause<VX,VY>& p);
00524   public:
00526     virtual Actor* copy(Space& home, bool share);
00528     virtual ExecStatus advise(Space& home, Advisor& a, const Delta& d);
00530     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00532     virtual void reschedule(Space& home);
00534     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00536     static  ExecStatus post(Home home, ViewArray<VX>& x, ViewArray<VY>& y,
00537                             VX z);
00539     virtual size_t dispose(Space& home);
00540   };
00541 
00542 
00549   template<class VX, class VY>
00550   class ClauseTrue
00551     : public MixBinaryPropagator<VX,PC_BOOL_VAL,VY,PC_BOOL_VAL> {
00552   protected:
00553     using MixBinaryPropagator<VX,PC_BOOL_VAL,VY,PC_BOOL_VAL>::x0;
00554     using MixBinaryPropagator<VX,PC_BOOL_VAL,VY,PC_BOOL_VAL>::x1;
00556     ViewArray<VX> x;
00558     ViewArray<VY> y;
00560     ClauseTrue(Home home, ViewArray<VX>& x, ViewArray<VY>& y);
00562     ClauseTrue(Space& home, bool share, ClauseTrue<VX,VY>& p);
00563   public:
00565     virtual Actor* copy(Space& home, bool share);
00567     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00569     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00571     static  ExecStatus post(Home home, ViewArray<VX>& x, ViewArray<VY>& y);
00573     virtual size_t dispose(Space& home);
00574   };
00575 
00576 
00583   template<class V0, class V1, class V2, PropCond pc>
00584   class IteBase : public Propagator {
00585   protected:
00587     BoolView b;
00589     V0 x0; V1 x1; V2 x2;
00591     IteBase(Space& home, bool share, IteBase& p);
00593     IteBase(Home home, BoolView b, V0 x0, V1 x1, V2 x2);
00594   public:
00596     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00598     virtual void reschedule(Space& home);
00600     virtual size_t dispose(Space& home);
00601   };
00602 
00609   template<class V0, class V1, class V2>
00610   class IteBnd : public IteBase<V0,V1,V2,PC_INT_BND> {
00611   protected:
00612     using IteBase<V0,V1,V2,PC_INT_BND>::b;
00613     using IteBase<V0,V1,V2,PC_INT_BND>::x0;
00614     using IteBase<V0,V1,V2,PC_INT_BND>::x1;
00615     using IteBase<V0,V1,V2,PC_INT_BND>::x2;
00617     IteBnd(Space& home, bool share, IteBnd& p);
00619     IteBnd(Home home, BoolView b, V0 x0, V1 x1, V2 x2);
00620   public:
00622     virtual Actor* copy(Space& home, bool share);
00624     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00626     static ExecStatus post(Home home, BoolView b, V0 x0, V1 x1, V2 x2);
00627   };
00628 
00635   template<class V0, class V1, class V2>
00636   class IteDom : public IteBase<V0,V1,V2,PC_INT_DOM> {
00637   protected:
00638     using IteBase<V0,V1,V2,PC_INT_DOM>::b;
00639     using IteBase<V0,V1,V2,PC_INT_DOM>::x0;
00640     using IteBase<V0,V1,V2,PC_INT_DOM>::x1;
00641     using IteBase<V0,V1,V2,PC_INT_DOM>::x2;
00643     IteDom(Space& home, bool share, IteDom& p);
00645     IteDom(Home home, BoolView b, V0 x0, V1 x1, V2 x2);
00646   public:
00648     virtual Actor* copy(Space& home, bool share);
00650     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00652     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00654     static ExecStatus post(Home home, BoolView b, V0 x0, V1 x1, V2 x2);
00655   };
00656 
00657 }}}
00658 
00659 #include <gecode/int/bool/base.hpp>
00660 #include <gecode/int/bool/eq.hpp>
00661 #include <gecode/int/bool/lq.hpp>
00662 #include <gecode/int/bool/or.hpp>
00663 #include <gecode/int/bool/eqv.hpp>
00664 #include <gecode/int/bool/clause.hpp>
00665 #include <gecode/int/bool/ite.hpp>
00666 
00667 #endif
00668 
00669 // STATISTICS: int-prop
00670