Here's a famous old chestnut:

$ perl -e'my $c=2; my $d=3; $c^=$d^=$c^=$d; print $c,$d,$/'
32
$

[download]
It's worthwhile to run through the bit twiddling by hand and see how that works.

After Compline,
Zaxo

In reply to Re: Lost when exchanging values by Zaxo
in thread Lost when exchanging values by Sigmund

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