I guess that is possible, you could for example use scalar::weaken, but I've never seen a place where that behavior would be desirable, do you have an example?

Usually, one let scopes take care of this:

use strict; use warnings;

my $z = bless {}, "XXX";
my $w;
{
   $w = \$z;
}
print "hurray!\n"     if ! $w;
print "still got \$z" if   $z;

[download]

But, it would be interesting to see a good use for the solution you are asking for.

hth
Edit: unintentionally my'ed $w inside the inner scope...

In reply to Re: How to explicitly destroy an object so that all other references to it would become false? by stiller
in thread How to explicitly destroy an object so that all other references to it would become false? by bdimych

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