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  2. MIDRANGE-L
  3. October 2009

RE: Sorting Question

Instead of trying to add leading zeros to the digits (which is a bad
idea) consider sorting based on the output of inet_addr(). The
inet_addr() routine will convert the IP address to a 32-bit unsigned
integer (which is what's REALLY used in network packets, the
dotted-decimal representation of the octets is just for human
consumption).

Best idea yet.

I agree that this is an approach that can be created to be trouble free, but
I wonder at the reason for turning such a task into an elaborate program,
especially when there's a utility (such as Unix sort) available to perform
the function for you. I wonder also at the time spent in creating, testing,
promoting, re-testing, documenting such programs.

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
"Don't let life discourage you; everyone who got where he is had to begin
where he was."
-- Richard L. Evans


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