If I wanted to do this, I'd count only in one hash and use a hash-slice to extract the "given" ones.

Less code and more flexible.

Update

Alternatively a HoH where the first key decides what is given or rest.

Cheers Rolf
(addicted to the Perl Programming Language :)
see Wikisyntax for the Monastery

In reply to Re^3: Logical/defined or as lvalue by LanX
in thread Logical/defined or as lvalue by jo37

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