I think this answers your question. 

perl -w -e 'use strict;my $t = undef;
my %p = keys %{$t->{r}};
print "t->{r} = $t->{r}
";
'

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In reply to Re: does if(%{$ptr->{key}}) define? by Juerd
in thread does if(%{$ptr->{key}}) define? by jmo

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