Date: Fri, 29 Jun 2001 06:13:24 -0400
From: Benjamin Goldberg <goldbb2@earthlink.net>
Subject: Re: Naming a hash
Message-Id: <3B3C54C4.BD290F98@earthlink.net>

Just in wrote:
> 
> Dear group,
> 
> Suppose I was in a loop, and I wanted to push some values into a hash,
> but I wanted the hash to have a different name for each iteration of
> the loop. i.e how can I do this:-
> 
> for ($a = 0; $a <= $#SomeArray; $a++)
> {
>     # do something to get data here
> 
>     $NewHash$a{$Var} = $Val;
> }
> 
> Obviously this wont work, and variations of the theme (that I have
> attempted), dont work either.
> 
> I would really appreciate if someone were to enlighten me.

What you're asing for is how to do symrefs.  As mentioned, symrefs are
evil, and another method should be used [eg, a hash of hashes, or an
array of hashes].  However, if you *really* want to know, here's how to
do it:
	for my $a ( 0 .. $#SomeArray ) {
		${"NewHash$a"}{$Var} = $Val;
	}
Note that the above will not work if "use strict" is in your program.

Personally, I would [probably] use an array of hashes instead, though.
	for my $a ( 0 .. $#SomeArray ) {
		$NewHash[$a]{$Var} = $Val;
	}

-- 
The longer a man is wrong, the surer he is that he's right.