This works also. 
my %all_keys;
%all_keys->@{keys %A, keys %Z} = ();

[download]
deparser says 
my %all_keys;
@all_keys{keys %A, keys %Z} = ();

[download]
So it doesn't seem to be requiring a hash reference in that context.

In reply to Re^5: Problem combining hashes by Danny
in thread Problem combining hashes by jh

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