asinacos.hpp Gecode Gecode::Float Gecode::Float::Trigonometric /*-*-mode:C++;c-basic-offset:2;indent-tabs-mode:nil-*-*/ /* *Mainauthors: *VincentBarichard<Vincent.Barichard@univ-angers.fr> * *Copyright: *VincentBarichard,2012 * *Lastmodified: *$Date:2012-07-2702:28:31+0200(Fri,27Jul2012)$by$Author:vbarichard$ *$Revision:12968$ * *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{namespaceFloat{namespaceTrigonometric{ /* *Boundsconsistentarcsinusoperator * */ template<classA,classB> forceinline ASin<A,B>::ASin(Homehome,Ax0,Bx1) :MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>(home,x0,x1){} template<classA,classB> ExecStatus ASin<A,B>::post(Homehome,Ax0,Bx1){ if(same(x0,x1)){ GECODE_ME_CHECK(x0.eq(home,0.0)); }else{ GECODE_ME_CHECK(x0.gq(home,-1.0)); GECODE_ME_CHECK(x0.lq(home,1.0)); (void)new(home)ASin<A,B>(home,x0,x1); } returnES_OK; } template<classA,classB> forceinline ASin<A,B>::ASin(Space&home,boolshare,ASin<A,B>&p) :MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>(home,share,p){} template<classA,classB> Actor* ASin<A,B>::copy(Space&home,boolshare){ returnnew(home)ASin<A,B>(home,share,*this); } template<classA,classB> ExecStatus ASin<A,B>::propagate(Space&home,constModEventDelta&){ if((x0.max()<-1)||(x0.min()>1))returnES_FAILED; GECODE_ME_CHECK(x1.eq(home,asin(x0.domain()))); GECODE_ME_CHECK(x0.eq(home,sin(x1.domain()))); return(x0.assigned()||x1.assigned())?home.ES_SUBSUMED(*this):ES_FIX; } /* *Boundsconsistentarccosinusoperator * */ template<classA,classB> forceinline ACos<A,B>::ACos(Homehome,Ax0,Bx1) :MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>(home,x0,x1){} template<classA,classB> ExecStatus ACos<A,B>::post(Homehome,Ax0,Bx1){ if(same(x0,x1)){ GECODE_ME_CHECK(x0.gq(home,0.7390851332151)); GECODE_ME_CHECK(x0.lq(home,0.7390851332152)); boolmod; do{ mod=false; GECODE_ME_CHECK_MODIFIED(mod,x0.eq(home,acos(x0.val()))); }while(mod); }else{ GECODE_ME_CHECK(x0.gq(home,-1.0)); GECODE_ME_CHECK(x0.lq(home,1.0)); (void)new(home)ACos<A,B>(home,x0,x1); } returnES_OK; } template<classA,classB> forceinline ACos<A,B>::ACos(Space&home,boolshare,ACos<A,B>&p) :MixBinaryPropagator<A,PC_FLOAT_BND,B,PC_FLOAT_BND>(home,share,p){} template<classA,classB> Actor* ACos<A,B>::copy(Space&home,boolshare){ returnnew(home)ACos<A,B>(home,share,*this); } template<classA,classB> ExecStatus ACos<A,B>::propagate(Space&home,constModEventDelta&){ if((x0.max()<-1)||(x0.min()>1))returnES_FAILED; GECODE_ME_CHECK(x1.eq(home,acos(x0.domain()))); GECODE_ME_CHECK(x0.eq(home,cos(x1.domain()))); return(x0.assigned()||x1.assigned())?home.ES_SUBSUMED(*this):ES_FIX; } }}} //STATISTICS:float-prop