div.hpp /usr/include/gecode/int/div.hh Gecode Gecode::Int /*-*-mode:C++;c-basic-offset:2;indent-tabs-mode:nil-*-*/ /* *Mainauthors: *ChristianSchulte<schulte@gecode.org> * *Copyright: *ChristianSchulte,2013 * *Lastmodified: *$Date:2013-02-1915:42:19+0100(Tue,19Feb2013)$by$Author:schulte$ *$Revision:13315$ * *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{ template<classIntType> forceinlineIntType ceil_div_pp(IntTypex,IntTypey){ assert((x>=0)&&(y>=0)); /* *Thisissmarterthanitlooks:formanycpus,%and/are *implementedbythesameinstructionandanoptimizingcompiler *willgeneratetheinstructiononlyonce. */ return((x%y)==0)?x/y:(x/y+1); } template<classIntType> forceinlineIntType floor_div_pp(IntTypex,IntTypey){ assert((x>=0)&&(y>=0)); returnx/y; } template<classIntType> forceinlineIntType ceil_div_px(IntTypex,IntTypey){ assert(x>=0); return(y>=0)?ceil_div_pp(x,y):-floor_div_pp(x,-y); } template<classIntType> forceinlineIntType floor_div_px(IntTypex,IntTypey){ assert(x>=0); return(y>=0)?floor_div_pp(x,y):-ceil_div_pp(x,-y); } template<classIntType> forceinlineIntType ceil_div_xp(IntTypex,IntTypey){ assert(y>=0); return(x>=0)?ceil_div_pp(x,y):-floor_div_pp(-x,y); } template<classIntType> forceinlineIntType floor_div_xp(IntTypex,IntTypey){ assert(y>=0); return(x>=0)?floor_div_pp(x,y):-ceil_div_pp(-x,y); } template<classIntType> forceinlineIntType ceil_div_xx(IntTypex,IntTypey){ return(x>=0)?ceil_div_px(x,y):-floor_div_px(-x,y); } template<classIntType> forceinlineIntType floor_div_xx(IntTypex,IntTypey){ return(x>=0)?floor_div_px(x,y):-ceil_div_px(-x,y); } }} //STATISTICS:int-prop