Perl gurus: why do we need Scalar::Util?

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Subject: Perl gurus: why do we need Scalar::Util?
From: Johannes Schindelin <Johannes.Schindelin@xxxxxx>
Date: Mon, 10 Jul 2006 13:44:39 +0200 (CEST)

Hi,

please do not let my die dumb: what is this "blessed" thing all about? And 
why do we need it in the private-Error.pm??

Thanks,
Dscho

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