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What does $$ mean ?
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*Shaji Kalidasan*
May 17, 2013, 8:39:10 AM5/17/13
to Perl Beginners
Greetings,
What does this mean
[CODE1]
keys %{$$disk_type_ref{$pool}};
[/CODE1]
Moreover, what does $$ mean here
[CODE2]
@{$$disk_type_ref{$pool}{$med_value}}
[/CODE2]
What data structures does the above things denote? Any pointers will be of great help.
Thanking you in advance.
Shaji
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Dr.Ruud
May 17, 2013, 8:47:19 AM5/17/13
to begi...@perl.org
On 17/05/2013 14:39, *Shaji Kalidasan* wrote:
> [CODE1]
> keys %{$$disk_type_ref{$pool}};
> [/CODE1]
>
> Moreover, what does $$ mean here
%{$$disk_type_ref{$pool}};
> [CODE1]
> keys %{$$disk_type_ref{$pool}};
> [/CODE1]
>
> Moreover, what does $$ mean here
can also be written as
%{ $disk_type_ref->{ $pool } };
See further perldsc.
> -------------------------------------------------------------------------------
> Your talent is God's gift to you. What you do with it is your gift back
> to God.
> -------------------------------------------------------------------------------
--
Ruud
Frank K.
May 17, 2013, 10:03:06 AM5/17/13
to begi...@perl.org
Gosh, I always thought "$$" is what you have to pay when you get a divorce <vbg>.. flk k
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*Shaji Kalidasan*
May 18, 2013, 12:52:45 AM5/18/13
to Dr.Ruud, begi...@perl.org
Dr. Ruud,
Thank you very much for your kind explanation. The pointers you suggested is very handy in understanding the complex data structures.
best,
Shaji
Shaji
-------------------------------------------------------------------------------
Your talent is God's gift to you. What you do with it is your gift back to God.
-------------------------------------------------------------------------------
Your talent is God's gift to you. What you do with it is your gift back to God.
-------------------------------------------------------------------------------
Subject: Re: What does $$ mean ?
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