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Re: Exchanging Variables

by robsv (Curate)
on Aug 10, 2001 at 02:00 UTC ( #103674=note: print w/ replies, xml ) Need Help??

in reply to Exchanging Variables

I also used to code in Pascal (never mind how long ago). If I was swapping two numerics, I used the XOR function. Here's the Perl version (since we ain't Pascal Monks):

$a = 598; $b = 77; $a = $a ^ $b; $b = $a ^ $b; $a = $a ^ $b; print "$a $b\n";
Use the ($a,$b) = ($b,$a) version, though. I just put this up for fun: TMTOWTDI!

- robsv

Update: Aaargh! Ignore me. dailylemma posted this already. That's what I get for starting a reply, going for a soda, then finishing the reply.

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