Send the code.
-----Original Message-----
From: Eric Walker [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 20, 2003 2:52 PM
To: Perl Newbies
Subject: RE: Pointers
Well see the key is I am passing a value to a sub this is a pointer and
I am having trouble getting access to the hash with in the subroutine
$Rules is a pointer given to me by a prewritten Database function.
&sub(\$Rules);
I am actually passing in 2 hashes and need to compare the keys. so I am
using a nested foreach but can't access the values within each foreach.
hope this can clear it up a little.
On Thu, 2003-11-20 at 12:34, Daniel Staal wrote:
--As off Thursday, November 20, 2003 12:20 PM -0700, Eric Walker is
alleged to have said:
> ok why the $$ instead of the %$?
>
> sorry confused.
>
> On Thu, 2003-11-20 at 12:08, Paul Kraus wrote:
>>
>> $$overdate{key}
>>
>> Perldoc perlref
--As for the rest, it is mine.
$$ would get you the value of a certain value in the hash. (The
scalar value of the hash element.) %$ would get you the entire
hash.
Most often people want one value of the hash, not the whole hash,
though both have their uses.
Daniel T. Staal
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