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RE: Sorting a list of IP addresses (aka Why I hate Big O)

by Maqs (Deacon)
on Aug 03, 2000 at 22:01 UTC ( #26039=note: print w/replies, xml ) Need Help??

in reply to Sorting a list of IP addresses (aka Why I hate Big O)

I'd try another solution :)
why not to read all IP adresses, convert them to binary,
for each part do:
join "", unpack "B8", pack "I" , $value;

, getting rid of '.' (couse now they play no role)
write these adresses to a txt file and then sort them execing external 'sort'?
Then convert them back to decimal , '.'-separated.. and voi la...
I havent tested that, but it seems to me it'll be quicker.


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[LanX]: ha ... a cpan module in German =)
[LanX]: hmm strange, when doesn a module appear on CPAN but is excluded on MetaCPAN?

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