You could also use Meta::Ds::Hash. Something like this (untested): 
use Meta::Ds::Hash;
my($hash)=Meta::Ds::Hash->new();
$hash->insert($bar);
$hash->insert($baz);
$hash->insert($boo);
# later
if($hash->has($foo)) {
  print "Found it\n";
}

[download]
It would be interesting to compare these various solutions for large and small numbers of comparison sets.

HTH, --traveler

In reply to Re: Comparing against multiple values by traveler
in thread Comparing against multiple values by doran

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