sorting on IP addresses
justin at iago.org
Wed Mar 7 05:29:50 CET 2001
Sam Wun <swun at esec.com.au> writes:
> Does anyone know what is the quickly way to sort a list of IP addresses?
> ie. 188.8.131.52 should be larger than 184.108.40.206
Convert to longs and sort on those values?
Not all that quick, I suppose, but I don't know of a faster correct way.
I suppose you could do it one octet at a time, which might be faster
for cases like your example where the addresses are fairly close.
The actual code for either of those approaches is short and
straightforward. Just write a little function to compare two
addresses using the method of your choice, and pass it to your list's
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