minor speed improvement for initialization (~ 10%)
minor speed improvement for initialization (~ 10%)

ZahidDev/primesieve,fredwang00/primesieve,fredwang00/primesieve,anatoliyrazin/primesieve,ZahidDev/primesieve,kimwalisch/primesieve,anatoliyrazin/primesieve,tempbottle/primesieve,fredwang00/primesieve,tempbottle/primesieve,tempbottle/primesieve,ZahidDev/primesieve,kimwalisch/primesieve,kimwalisch/primesieve,anatoliyrazin/primesieve