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in reply to Re: Re: Detecting transpositions
in thread Detecting transpositions

Would it be possible for the product of $f ^ $s to contain a "1" and hence pollute your $_ string?

Yes, but no. It could certainly be possible that the XORred string contains a character "1". But this is ok, the tr/\x00/1/c turns anything that is not "\x00" into a "1" anyway - after the tr, the string will only contain "\x00" and "1" characters.

Abigail

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Re: Re: Detecting transpositions
by Jonathan (Curate) on Aug 08, 2003 at 09:58 UTC
    Oh of course they are. Looks like I'm being even more stupid than usual

    Sorry to have troubled you