% ./perl  -Mwarnings -Mstrict -e'my %a = ( a => 1); print %a->{a}'
Using a hash as a reference is deprecated at -e line 1
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Well, it still works in bleadperl, which is what will become 5.10. So you're safe for a number of years yet. Rafaël announced a code freeze some time back, so a major change that would force this syntax to be retired is unlikely to happen this round.

Still, it would be a good idea to go through the code base and clean that up.

"Using a hash as a reference is deprecated"

I guess I don't get what you mean from what you write. Could you provide a code example on how that's done?

I know of hashes, and anonymous hashes, and taking references to a named hash, and passing around hash references (i.e. scalars). But "using a hash as a reference" sounds to me like some not-yet-heard-of magic of evaluating a hash (in scalar context?) and getting a reference to a hash thereof. Hmm.

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

I didn't know about this either, but I just looked it up and it appears you can use a hash just like a hash-ref and it will work (but give that warning):

perl -Mwarnings -Mstrict -e'my %a = ( a => 1); print %a->{a}'
Using a hash as a reference is deprecated at -e line 1.
1
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"What should it profit a man, if he should win a flame war, yet lose his cool?"

Wow. I wonder how much thought and discussion went into this dwimmery now deprecated? What more of the like is in perl that I don't know?

I'm unable to interprete the shudders runinng down my back after knowing this right now. Pleasure? Fright? Have to work that out...

--shmem

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}