Yes it is legal (pretty dumb, but legal).
But it's NOT work with perl, v5.8.4 built for i686-linux-thread-multi
Of course it works. Sure it does something different, but it works. The real question is what is it supposed to do? If you had written @a{(undef) } = () you'd have gotten the same result. I would guess that this "new" behaviour is the correct behaviour (all expressions which evaluate to undef should be turned into the empty string "").

MJD says "you can't just make shit up and expect the computer to know what you mean, retardo!"
I run a Win32 PPM repository for perl 5.6.x and 5.8.x -- I take requests (README).
** The third rule of perl club is a statement of fact: pod is sexy.

In reply to Re: using "my" in hash slice by PodMaster
in thread using "my" in hash slice by ccn

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