view-base.hpp /usr/include/gecode/int/count.hh /usr/include/gecode/int/count.hh /usr/include/gecode/int/count/view-base.hpp Gecode Gecode::Int Gecode::Int::Count /*-*-mode:C++;c-basic-offset:2;indent-tabs-mode:nil-*-*/ /* *Mainauthors: *ChristianSchulte<schulte@gecode.org> * *Copyright: *ChristianSchulte,2003 * *Lastmodified: *$Date:2011-08-2914:59:24+0200(Mon,29Aug2011)$by$Author:schulte$ *$Revision:12359$ * *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{namespaceCount{ template<classVX,classVY,classVZ> forceinline ViewBase<VX,VY,VZ>::ViewBase(Homehome, ViewArray<VX>&x0,VYy0,VZz0,intc0) :Propagator(home),x(x0),y(y0),z(z0),c(c0){ if(vtd(y)==VTD_INTSET) home.notice(*this,AP_DISPOSE); x.subscribe(home,*this,PC_INT_DOM); subscribe(home,*this,y); z.subscribe(home,*this,PC_INT_BND); } template<classVX,classVY,classVZ> forceinline ViewBase<VX,VY,VZ>::ViewBase(Space&home,boolshare,ViewBase<VX,VY,VZ>&p) :Propagator(home,share,p),c(p.c){ x.update(home,share,p.x); y.update(home,share,p.y); z.update(home,share,p.z); } template<classVX,classVY,classVZ> PropCost ViewBase<VX,VY,VZ>::cost(constSpace&,constModEventDelta&)const{ returnPropCost::linear(PropCost::LO,x.size()+1); } template<classVX,classVY,classVZ> forceinlinesize_t ViewBase<VX,VY,VZ>::dispose(Space&home){ if(vtd(y)==VTD_INTSET) home.ignore(*this,AP_DISPOSE); x.cancel(home,*this,PC_INT_DOM); cancel(home,*this,y); z.cancel(home,*this,PC_INT_BND); (void)Propagator::dispose(home); returnsizeof(*this); } template<classVX,classVY,classVZ> forceinlinevoid ViewBase<VX,VY,VZ>::count(Space&home){ intn=x.size(); for(inti=n;i--;) switch(holds(x[i],y)){ caseRT_FALSE: x[i].cancel(home,*this,PC_INT_DOM);x[i]=x[--n]; break; caseRT_TRUE: x[i].cancel(home,*this,PC_INT_DOM);x[i]=x[--n]; c--; break; caseRT_MAYBE: break; default: GECODE_NEVER; } x.size(n); } template<classVX,classVY,classVZ> forceinlineint ViewBase<VX,VY,VZ>::atleast(void)const{ return-c; } template<classVX,classVY,classVZ> forceinlineint ViewBase<VX,VY,VZ>::atmost(void)const{ returnx.size()-c; } template<classVX> forceinlinebool shared(constIntSet&,VX){ returnfalse; } template<classVX,classVY,classVZ> forceinlinebool ViewBase<VX,VY,VZ>::sharing(constViewArray<VX>&x, constVY&y,constVZ&z){ if(shared(y,z)) returntrue; for(inti=x.size();i--;) if(shared(x[i],z)) returntrue; returnfalse; } }}} //STATISTICS:int-prop