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Re^2: XML::Twig and Processing Instructions

by mirod (Canon)
on Mar 19, 2009 at 17:42 UTC ( #751814=note: print w/replies, xml ) Need Help??

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    choroba's discovered two instances of a weird animal in the code at work: \@$var
    [Eily]: hum, tied scalar, generates a new array when derefed ? :D
    [Corion]: choroba: Ah, when doing a shallow copy, I prefer [ @$var ] - I think \@$var might return the same reference instead of a reference to a fresh copy
    [Corion]: perl -wle "my $ar = [1,2,3]; my $br=\@$ar; print qq($ar / $br)" confirms this to me
    [karlgoethebier]: "discovered" this to sum an array: perl -E 'say scalar map {1 .. $_} (1..3);'

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