Which ones? Cut/paste into <code></code> tags. 
rmpath( '/no/such/path', {error => \my $err} );

[download]
is the same as 
my $err;
rmpath( '/no/such/path', {error => \$err} );

[download]
does that help?

In reply to Re: References in Perl by Anonymous Monk
in thread References in Perl by misterMatt

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