in reply to Re^2: store a warning in a variable
in thread store a warning in a variable

You are right. It even becomes much simpler: 
my $warning;
$SIG{__WARN__} = sub {$warning = shift};

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Re^4: store a warning in a variable
by 7stud (Deacon) on Nov 10, 2010 at 01:43 UTC
    You are right.

    No, it wasn't a rhetorical question. I thought you were going to have an explanation for me.

    Thanks :)

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