Thanks, jwkrahn and sleet. It seems that starting with Perl 5.12 it's valid to call length with an undef value. It's a relatively recent change.

My only concern with this is that it seems too obtuse, so I wondered if it is really idiomatic. I checked a couple of modules and that seems to be the case.

Thanks. I consider this resolved.

In reply to Re: Checking string emptiness by dave93
in thread Checking string emptiness by dave93

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