#!/usr/bin/debugperl -w # http://www.perlmonks.org/?node_id=642604 use strict; use Devel::Leak; use Scalar::Util qw/weaken/; my ($handle); leak(); my $test1 = "foo"; my $count1 = Devel::Leak::NoteSV ($handle); leak(); $test1 = undef; my $count2 = Devel::Leak::CheckSV($handle); print "$count1 $count2\n"; exit(0); sub leak { for (1..3) { my $h = {}; $h->{myself} = $h; #weaken($h->{myself}); $h->{label} = 'testing $_'; } }