The following suffices: 

rutine($hoh{'A'});

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Remember, $hoh{'A'}{1} is actually short for $hoh{'A'}->{1}. %hoh is a hash of references (to hashes).

I wouldn't call it a HoH slice, though. It's simply a reference to a hash.

In reply to Re: Pass reference to internal hash? by ikegami
in thread Pass reference to internal hash? by tamaguchi

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