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Re: Bitwise Operator Error

by jethro (Monsignor)
on Oct 02, 2008 at 19:21 UTC ( #715077=note: print w/replies, xml ) Need Help??


in reply to Bitwise Operator Error

Even if you follow broomdusters advice, you still have a big problem. The internal numbers presentation automatically changes a number to floating point if it gets too big. Anding floating point numbers is quite useless as you can see here:

$maskResult = 4000000000000000 & 4000000000000000; print $maskResult,"\n"; ####prints 4294967295 $maskResult = 1000000000000000 & 4000000000000000; print $maskResult,"\n"; ####prints 4294967295

If you want to use really large integers you need bigint or Math:BigInt

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