Perl as OOP language is much more flexiable language than C++ and there is no really reason to not use this flexibility when it makes sence. Return under (or any other special value) or raising an exception as a sign of error is really just a matter of style. Best Practices for Exception Handling covers it so you may find it interesting.
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Ilya Martynov, ilya@iponweb.net
CTO IPonWEB (UK) Ltd
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Personal website - http://martynov.org
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