THANK YOU EVERYONE FOR THE GREAT REPLIES. I must go commune with myself now since it's truly perplexing when one must derefernece and when not to, and when the dereference is implicit.

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original question Below:

Commonly one can index out multiple keys simultaneously from a hash like this:

my (%H) = (1,100,2,200,3,300);
@A=  @H{ (1,3) };

[download]

@A now contains (100,200)

But how do I do this when I have not the Hash itself but a reference to the hash?

I want to be able to write something like this:

my $Href = {1 => 100,3 =>300};
@A = @{$Href}->{ (1,3) };

[download]

But that does not work.

It would be crazy to reconsitutute the hash (if the hash is enormous) so I don't consider the following a viable option:

$Href = {1 => 100,3 =>300};
%H = %{$Href};
@A = @H{ (1,3) };

[download]

The following does work but it is a hideous kludge I think should not be neccessary:

$Href = {1 => 100,3 =>300};
my @A;
{ local %G;  *G = $Href; @A = @G->{ (1,3) } }

[download]

Yuck...

SO what's the right way to slice index a a hash reference?

Code tags added by GrandFather

In reply to Looking up an array of keys with a Hash reference by cems22

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