A case of autovivification for you, I suspect... On May 11, 2011 10:49 PM, "Ludwig Isaac Lim" <[email protected]> wrote: > Hi: > > A question for curiosity's sake: > > here's a snippet of code: > > use warnings; > > my $ref = undef; # in real code is a function that just returned undef > > foreach my $item (@{$ref}) { > } > > print $ref; > > > Expected output: > use of uninitialized value $ref in string > > > What I got: > ARRAY(<arbitrary address>) > > I know I can wrap the "foreach" with "if defined ($ref)" statement, but I like to know why > > Regards, > Ludwig
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