view-values.hpp /usr/include/gecode/int/branch.hh /usr/include/gecode/int/branch/view-values.hpp /usr/include/gecode/int/branch.hh Gecode::Int::Branch::PosValuesChoice Gecode::Int::Branch::PosValuesChoice::PosMin Gecode Gecode::Int Gecode::Int::Branch /*-*-mode:C++;c-basic-offset:2;indent-tabs-mode:nil-*-*/ /* *Mainauthors: *ChristianSchulte<schulte@gecode.org> * *Copyright: *ChristianSchulte,2008 * *Lastmodified: *$Date:2013-07-0417:03:13+0200(Thu,04Jul2013)$by$Author:schulte$ *$Revision:13801$ * *ThisfileispartofGecode,thegenericconstraint *developmentenvironment: *http://www.gecode.org * *Permissionisherebygranted,freeofcharge,toanypersonobtaining *acopyofthissoftwareandassociateddocumentationfiles(the *"Software"),todealintheSoftwarewithoutrestriction,including *withoutlimitationtherightstouse,copy,modify,merge,publish, *distribute,sublicense,and/orsellcopiesoftheSoftware,andto *permitpersonstowhomtheSoftwareisfurnishedtodoso,subjectto *thefollowingconditions: * *Theabovecopyrightnoticeandthispermissionnoticeshallbe *includedinallcopiesorsubstantialportionsoftheSoftware. * *THESOFTWAREISPROVIDED"ASIS",WITHOUTWARRANTYOFANYKIND, *EXPRESSORIMPLIED,INCLUDINGBUTNOTLIMITEDTOTHEWARRANTIESOF *MERCHANTABILITY,FITNESSFORAPARTICULARPURPOSEAND *NONINFRINGEMENT.INNOEVENTSHALLTHEAUTHORSORCOPYRIGHTHOLDERSBE *LIABLEFORANYCLAIM,DAMAGESOROTHERLIABILITY,WHETHERINANACTION *OFCONTRACT,TORTOROTHERWISE,ARISINGFROM,OUTOFORINCONNECTION *WITHTHESOFTWAREORTHEUSEOROTHERDEALINGSINTHESOFTWARE. * */ namespaceGecode{namespaceInt{namespaceBranch{ classGECODE_VTABLE_EXPORTPosValuesChoice:publicPosChoice{ private: classPosMin{ public: unsignedintpos; intmin; }; unsignedintn; PosMin*pm; public: GECODE_INT_EXPORT PosValuesChoice(constBrancher&b,constPos&p,IntViewx); GECODE_INT_EXPORT PosValuesChoice(constBrancher&b,unsignedintalt,Posp,Archive&e); intval(unsignedinta)const; GECODE_INT_EXPORT virtualsize_tsize(void)const; GECODE_INT_EXPORT virtual~PosValuesChoice(void); GECODE_INT_EXPORT virtualvoidarchive(Archive&e)const; }; forceinlineint PosValuesChoice::val(unsignedinta)const{ PosMin*l=&pm[0]; PosMin*r=&pm[n-1]; while(true){ PosMin*m=l+(r-l)/2; if(a<m->pos){ r=m-1; }elseif(a>=(m+1)->pos){ l=m+1; }else{ returnm->min+static_cast<int>(a-m->pos); } } GECODE_NEVER; return0; } template<intn,boolmin> forceinline ViewValuesBrancher<n,min>:: ViewValuesBrancher(Homehome,ViewArray<IntView>&x, ViewSel<IntView>*vs[n], BranchFilterbf,IntVarValPrintvvp0) :ViewBrancher<IntView,n>(home,x,vs,bf),vvp(vvp0){} template<intn,boolmin> BrancherHandle ViewValuesBrancher<n,min>::post(Homehome,ViewArray<IntView>&x, ViewSel<IntView>*vs[n], BranchFilterbf,IntVarValPrintvvp){ return*new(home)ViewValuesBrancher<n,min>(home,x,vs,bf,vvp); } template<intn,boolmin> forceinline ViewValuesBrancher<n,min>:: ViewValuesBrancher(Space&home,boolshared,ViewValuesBrancher&b) :ViewBrancher<IntView,n>(home,shared,b),vvp(b.vvp){} template<intn,boolmin> Actor* ViewValuesBrancher<n,min>::copy(Space&home,boolshared){ returnnew(home)ViewValuesBrancher<n,min>(home,shared,*this); } template<intn,boolmin> constChoice* ViewValuesBrancher<n,min>::choice(Space&home){ Posp=ViewBrancher<IntView,n>::pos(home); returnnewPosValuesChoice(*this,p, ViewBrancher<IntView,n>::view(p)); } template<intn,boolmin> constChoice* ViewValuesBrancher<n,min>::choice(constSpace&home,Archive&e){ (void)home; intp; unsignedinta; e>>p>>a; returnnewPosValuesChoice(*this,a,p,e); } template<intn,boolmin> ExecStatus ViewValuesBrancher<n,min>::commit(Space&home,constChoice&c, unsignedinta){ constPosValuesChoice&pvc =static_cast<constPosValuesChoice&>(c); IntViewx(ViewBrancher<IntView,n>::view(pvc.pos())); unsignedintb=min?a:(pvc.alternatives()-1-a); returnme_failed(x.eq(home,pvc.val(b)))?ES_FAILED:ES_OK; } template<intn,boolmin> NGL* ViewValuesBrancher<n,min>::ngl(Space&home,constChoice&c, unsignedinta)const{ constPosValuesChoice&pvc =static_cast<constPosValuesChoice&>(c); IntViewx(ViewBrancher<IntView,n>::view(pvc.pos())); unsignedintb=min?a:(pvc.alternatives()-1-a); returnnew(home)EqNGL<IntView>(home,x,pvc.val(b)); } template<intn,boolmin> void ViewValuesBrancher<n,min>::print(constSpace&home,constChoice&c, unsignedinta,std::ostream&o)const{ constPosValuesChoice&pvc =static_cast<constPosValuesChoice&>(c); IntVarx(ViewBrancher<IntView,n>::view(pvc.pos()).varimp()); unsignedintb=min?a:(pvc.alternatives()-1-a); intnn=pvc.val(b); if(vvp!=NULL) vvp(home,*this,a,x,pvc.pos().pos,nn,o); else o<<"var["<<pvc.pos().pos<<"]="<<nn; } }}} //STATISTICS:int-branch