Marcos Rebelo wrote:
Some time ago I read one article about this
Consider that you have:
{ # make $a point to itself
my $a;
$a = \$a;
}
Or
{ # make $a and $b point to each other
my ($a, $b);
$a = \$b;
$b = \$a;
}
This memory will be free just at the end of the process. This can became
a problem.
If I'm not wrong there is a subroutine that makes a reference as a weak
referenc but how?
perldoc Scalar::Util
weaken()
isweak()
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