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: 2011-10-07 11:28:27 +0200 (Fri, 07 Oct 2011) $ by $Author: schulte $
00013  *     $Revision: 12427 $
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 size_t dispose(Space& home);
00075   };
00076 
00078   template<class BVA, class BVB, class BVC>
00079   class BoolTernary : public Propagator {
00080   protected:
00081     BVA x0; 
00082     BVB x1; 
00083     BVC x2; 
00084 
00085     BoolTernary(Home home, BVA b0, BVB b1, BVC b2);
00087     BoolTernary(Space& home, bool share, BoolTernary& p);
00088   public:
00090     BoolTernary(Space& home, bool share, Propagator& p,
00091                 BVA b0, BVB b1, BVC b2);
00093     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00095     virtual size_t dispose(Space& home);
00096   };
00097 
00104   template<class BVA, class BVB>
00105   class Eq : public BoolBinary<BVA,BVB> {
00106   protected:
00107     using BoolBinary<BVA,BVB>::x0;
00108     using BoolBinary<BVA,BVB>::x1;
00110     Eq(Home home, BVA b0, BVB b1);
00112     Eq(Space& home, bool share, Eq& p);
00113   public:
00115     Eq(Space& home, bool share, Propagator& p,
00116        BVA b0, BVB b1);
00118     virtual Actor* copy(Space& home, bool share);
00120     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00122     static  ExecStatus post(Home home, BVA x0, BVB x1);
00123   };
00124 
00125 
00132   template<class BV>
00133   class NaryEq : public NaryPropagator<BV,PC_BOOL_VAL> {
00134   protected:
00135     using NaryPropagator<BV,PC_BOOL_VAL>::x;
00137     NaryEq(Home home, ViewArray<BV>& x);
00139     NaryEq(Space& home, bool share, NaryEq& p);
00140   public:
00142     virtual Actor* copy(Space& home, bool share);
00144     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00146     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00148     static  ExecStatus post(Home home, ViewArray<BV>& x);
00149   };
00150 
00151 
00158   template<class BV>
00159   class Lq : public BoolBinary<BV,BV> {
00160   protected:
00161     using BoolBinary<BV,BV>::x0;
00162     using BoolBinary<BV,BV>::x1;
00164     Lq(Home home, BV b0, BV b1);
00166     Lq(Space& home, bool share, Lq& p);
00167   public:
00169     virtual Actor* copy(Space& home, bool share);
00171     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00173     static  ExecStatus post(Home home, BV b0, BV b1);
00174   };
00175 
00182   template<class VX>
00183   class NaryLq : public NaryPropagator<VX,PC_BOOL_NONE> {
00184   protected:
00185     using NaryPropagator<VX,PC_BOOL_NONE>::x;
00187     bool run;
00189     int n_zero;
00191     int n_one;
00193     Council<Advisor> c;
00195     NaryLq(Home home,  ViewArray<VX>& x);
00197     NaryLq(Space& home, bool share, NaryLq<VX>& p);
00198   public:
00200     virtual Actor* copy(Space& home, bool share);
00202     virtual ExecStatus advise(Space& home, Advisor& a, const Delta& d);
00204     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00206     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00208     static  ExecStatus post(Home home, ViewArray<VX>& x);
00210     virtual size_t dispose(Space& home);
00211   };
00212 
00213 
00214 
00215 
00222   template<class BV>
00223   class Le {
00224   public:
00226     static  ExecStatus post(Home home, BV b0, BV b1);
00227   };
00228 
00229 
00236   template<class BVA, class BVB>
00237   class BinOrTrue : public BoolBinary<BVA,BVB> {
00238   protected:
00239     using BoolBinary<BVA,BVB>::x0;
00240     using BoolBinary<BVA,BVB>::x1;
00242     BinOrTrue(Home home, BVA b0, BVB b1);
00244     BinOrTrue(Space& home, bool share, BinOrTrue& p);
00245   public:
00247     BinOrTrue(Space& home, bool share, Propagator& p,
00248               BVA b0, BVB b1);
00250     virtual Actor* copy(Space& home, bool share);
00252     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00254     static  ExecStatus post(Home home, BVA b0, BVB b1);
00255   };
00256 
00263   template<class BV>
00264   class TerOrTrue : public BoolBinary<BV,BV> {
00265   protected:
00266     using BoolBinary<BV,BV>::x0;
00267     using BoolBinary<BV,BV>::x1;
00269     BV x2;
00271     TerOrTrue(Home home, BV b0, BV b1, BV b2);
00273     TerOrTrue(Space& home, bool share, TerOrTrue& p);
00274   public:
00276     TerOrTrue(Space& home, bool share, Propagator& p,
00277               BV b0, BV b1, BV b2);
00279     virtual Actor* copy(Space& home, bool share);
00281     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00283     static  ExecStatus post(Home home, BV b0, BV b1, BV b2);
00285     virtual size_t dispose(Space& home);
00286   };
00287 
00294   template<class BV>
00295   class QuadOrTrue : public BoolBinary<BV,BV> {
00296   protected:
00297     using BoolBinary<BV,BV>::x0;
00298     using BoolBinary<BV,BV>::x1;
00300     BV x2;
00302     BV x3;
00304     QuadOrTrue(Home home, BV b0, BV b1, BV b2, BV b3);
00306     QuadOrTrue(Space& home, bool share, QuadOrTrue& p);
00307   public:
00309     QuadOrTrue(Space& home, bool share, Propagator& p,
00310                BV b0, BV b1, BV b2, BV b3);
00312     virtual Actor* copy(Space& home, bool share);
00314     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00316     static  ExecStatus post(Home home, BV b0, BV b1, BV b2, BV b3);
00318     virtual size_t dispose(Space& home);
00319   };
00320 
00327   template<class BVA, class BVB, class BVC>
00328   class Or : public BoolTernary<BVA,BVB,BVC> {
00329   protected:
00330     using BoolTernary<BVA,BVB,BVC>::x0;
00331     using BoolTernary<BVA,BVB,BVC>::x1;
00332     using BoolTernary<BVA,BVB,BVC>::x2;
00334     Or(Home home, BVA b0, BVB b1, BVC b2);
00336     Or(Space& home, bool share, Or& p);
00337   public:
00339     Or(Space& home, bool share, Propagator& p, BVA b0, BVB b1, BVC b2);
00341     virtual Actor* copy(Space& home, bool share);
00343     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00345     static  ExecStatus post(Home home, BVA b0, BVB b1, BVC b2);
00346   };
00347 
00354   template<class VX,class VY>
00355   class NaryOr
00356     : public MixNaryOnePropagator<VX,PC_BOOL_NONE,VY,PC_BOOL_VAL> {
00357   protected:
00358     using MixNaryOnePropagator<VX,PC_BOOL_NONE,VY,PC_BOOL_VAL>::x;
00359     using MixNaryOnePropagator<VX,PC_BOOL_NONE,VY,PC_BOOL_VAL>::y;
00361     int n_zero;
00363     Council<Advisor> c;
00365     NaryOr(Home home,  ViewArray<VX>& x, VY y);
00367     NaryOr(Space& home, bool share, NaryOr<VX,VY>& p);
00368   public:
00370     virtual Actor* copy(Space& home, bool share);
00372     virtual ExecStatus advise(Space& home, Advisor& a, const Delta& d);
00374     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00376     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00378     static  ExecStatus post(Home home, ViewArray<VX>& x, VY y);
00380     virtual size_t dispose(Space& home);
00381   };
00382 
00383 
00390   template<class BV>
00391   class NaryOrTrue : public BinaryPropagator<BV,PC_BOOL_VAL> {
00392   protected:
00393     using BinaryPropagator<BV,PC_BOOL_VAL>::x0;
00394     using BinaryPropagator<BV,PC_BOOL_VAL>::x1;
00396     ViewArray<BV> x;
00398     ExecStatus resubscribe(Space& home, BV& x0, BV x1);
00400     NaryOrTrue(Home home, ViewArray<BV>& x);
00402     NaryOrTrue(Space& home, bool share, NaryOrTrue<BV>& p);
00403   public:
00405     virtual Actor* copy(Space& home, bool share);
00407     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00409     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00411     static  ExecStatus post(Home home, ViewArray<BV>& b);
00413     virtual size_t dispose(Space& home);
00414   };
00415 
00416 
00423   template<class BVA, class BVB, class BVC>
00424   class Eqv : public BoolTernary<BVA,BVB,BVC> {
00425   protected:
00426     using BoolTernary<BVA,BVB,BVC>::x0;
00427     using BoolTernary<BVA,BVB,BVC>::x1;
00428     using BoolTernary<BVA,BVB,BVC>::x2;
00430     Eqv(Space& home, bool share, Eqv& p);
00432     Eqv(Home home, BVA b0 ,BVB b1, BVC b2);
00433   public:
00435     virtual Actor* copy(Space& home, bool share);
00437     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00439     static  ExecStatus post(Home home, BVA b0, BVB b1, BVC b2);
00440   };
00441 
00442 
00451   class NaryEqv : public BinaryPropagator<BoolView,PC_BOOL_VAL> {
00452   protected:
00453     using BinaryPropagator<BoolView,PC_BOOL_VAL>::x0;
00454     using BinaryPropagator<BoolView,PC_BOOL_VAL>::x1;
00456     ViewArray<BoolView> x;
00458     int pm2;
00460     void resubscribe(Space& home, BoolView& x0);
00462     NaryEqv(Home home, ViewArray<BoolView>& x, int pm2);
00464     NaryEqv(Space& home, bool share, NaryEqv& p);
00465   public:
00467     GECODE_INT_EXPORT 
00468     virtual Actor* copy(Space& home, bool share);
00470     GECODE_INT_EXPORT 
00471     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00473     GECODE_INT_EXPORT 
00474     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00476     GECODE_INT_EXPORT 
00477     static ExecStatus post(Home home, ViewArray<BoolView>& x, int pm2);
00479     virtual size_t dispose(Space& home);
00480   };
00481 
00482 
00489   template<class VX, class VY>
00490   class Clause : public Propagator {
00491   protected:
00493     ViewArray<VX> x;
00495     ViewArray<VY> y;
00497     VX z;
00499     int n_zero;
00501     class Tagged : public Advisor {
00502     public:
00504       const bool x;
00506       Tagged(Space& home, Propagator& p, Council<Tagged>& c, bool x);
00508       Tagged(Space& home, bool share, Tagged& a);
00509     };
00511     Council<Tagged> c;
00513     void cancel(Space& home);
00515     Clause(Home home,  ViewArray<VX>& x, ViewArray<VY>& y, VX z);
00517     Clause(Space& home, bool share, Clause<VX,VY>& p);
00518   public:
00520     virtual Actor* copy(Space& home, bool share);
00522     virtual ExecStatus advise(Space& home, Advisor& a, const Delta& d);
00524     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00526     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00528     static  ExecStatus post(Home home, ViewArray<VX>& x, ViewArray<VY>& y,
00529                             VX z);
00531     virtual size_t dispose(Space& home);
00532   };
00533 
00534 
00541   template<class VX, class VY>
00542   class ClauseTrue
00543     : public MixBinaryPropagator<VX,PC_BOOL_VAL,VY,PC_BOOL_VAL> {
00544   protected:
00545     using MixBinaryPropagator<VX,PC_BOOL_VAL,VY,PC_BOOL_VAL>::x0;
00546     using MixBinaryPropagator<VX,PC_BOOL_VAL,VY,PC_BOOL_VAL>::x1;
00548     ViewArray<VX> x;
00550     ViewArray<VY> y;
00552     ClauseTrue(Home home, ViewArray<VX>& x, ViewArray<VY>& y);
00554     ClauseTrue(Space& home, bool share, ClauseTrue<VX,VY>& p);
00555   public:
00557     virtual Actor* copy(Space& home, bool share);
00559     virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
00561     virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
00563     static  ExecStatus post(Home home, ViewArray<VX>& x, ViewArray<VY>& y);
00565     virtual size_t dispose(Space& home);
00566   };
00567 
00568 
00569 }}}
00570 
00571 #include <gecode/int/bool/base.hpp>
00572 #include <gecode/int/bool/eq.hpp>
00573 #include <gecode/int/bool/lq.hpp>
00574 #include <gecode/int/bool/or.hpp>
00575 #include <gecode/int/bool/eqv.hpp>
00576 #include <gecode/int/bool/clause.hpp>
00577 
00578 #endif
00579 
00580 // STATISTICS: int-prop
00581