OK, here's a quicky for you:

I have a program that needs to check the results of a DBI call against a list of possible values, and set other variables based on that. Since this is supposed to run interactively and could have to evaluate a huge number of replies, speed is a huge factor.

'Effective Programming in Perl' says that the eq operator is faster than using a RegExp '=~', but what about if you have to do a case-insensitive search? Are multiple 'eq' operations faster than one RegExp? What about an lc()

For example, which of these would run fastest:

if (lc($type) eq 'cr') { $foo = 1 }

-or-

if ($type eq 'cr' or $type eq 'CR') { $foo = 1 }

-or-

if ($type =~ /CR/i) { $foo = 1 }

[download]
Thanks in advance...
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In reply to Function speeds: lc() vs. eq vs. =~ by Clownburner

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