Just caught that one myself! :-)

I've updated my example - as it now shows, the 'xop' is not that much faster than just iterating over the array with a properly constructed 'for' loop. In fact, in this example, 'grep' has turned out to be the most consistent performer (but that might be because there is no overhead in creating a hash). Grep is probably fastest because it is coded directly in C, rather than including any extra Perl contructs. Just goes to show that you should always test and test again before you go proclaiming one method over another! :-) (Serves me right for trying to be a smart-ass!)

Cheers,

-- Dave :-)

In reply to Re: Re^4: Set Operators by DaveH
in thread Set Operators by Anonymous Monk

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