Perl question: array member of referenced hash

[Shachar Shemesh]

Noam Rathaus wrote:
> Shachar,
>
> { } in Perl are casting when they surround a value
> And the second set of { } around the 'a' mean variable of Hash
>
>
>   
Grumble grumble grumble....

Okay, I'm sorry for being difficult. I really couldn't find the answer 
in the Perl documentation.

I understand the second set of curly braces. I also, somewhat, 
understand that the -> replaces the % (i.e. - reference dereferencing). 
What I'm not so clear is what the first set of curly braces do (what do 
you mean by "casting" - casting to what? How is that decided?). I'm also 
not clear on why the surrounding round brackets are needed. I understand 
they are so this will be a list context, but I don't understand why it's 
needed once I put a @ to dereference the array.

Thanks,
Shachar
>
>> foreach my $elem (@{$ref->{a}})
>>     

-- 
Shachar Shemesh
Lingnu Open Source Consulting Ltd.
http://www.lingnu.com

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