Re: Re: dereferencing nightmares...

You may know this already but... if you end up doing this as Zaxo suggested, then your @array better be my()ed in the loop for $i; otherwise, all elemets of $page_graphic->[$i] will point to the same set of values (probably not what you want).

You could do

$page_graphic->[$i]->{array} = [@array];

# ... other stuff ...
[download]


loop_construct {
 my @array = @other_array;
 $page_graphic->[$i]->{array} = [@array];

 # ... other stuff ...


}
[download]

Regards.

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Re: Re: Re: dereferencing nightmares... by Anonymous Monk on Jan 08, 2002 at 20:39 UTC
err... obviously i ment `loop_construct { my @array = @other_array; $page_graphic->[$i]->{array} = \@array; # ... other stuff ... }` [download] Sorry about that.	[reply] [d/l]
Re(3): dereferencing nightmares... by dmmiller2k (Chaplain) on Jan 09, 2002 at 00:15 UTC
Perhaps this is beating a dead horse, but it appears you've hit upon what cLive ;-) apparently originally meant to do with this. `$page_graphic->[$i]->{array} = [@array];` By specifying the square brackets around `@array`, assigning a reference to an anonymous array containing copies of the elements of `@array`. No need of correction (IMHO), since cLive ;-) didn't give us the full context of his code (i.e., how is `@array` populated?), although declaring `@array` with `my` within the loop and using `\` to take a reference to it is a perfectly valid Way To Do It. Generally, though, taking references to named array and/or hash variables within a loop raises a red flag with me. dmm You can give a man a fish and feed him for a day ... Or, you can teach him to fish and feed him for a lifetime	[reply] [d/l] [select]
(cLive ;-) Re: dereferencing nightmares... by cLive ;-) (Prior) on Jan 09, 2002 at 01:38 UTC
Y'know, that is a very good point. It's probably only because every var I used is as localised as possible with 'my' that this has never been a problem - yes, in this has the array is purely local to the sub it's used in, but the $page reference isn't. Most of the other elements referenced are anonymous. I think I was definitely having too long a session yesterday. What I've done works, but I think I'll rewrite it later when i have a better idea of the general context it will be used in. And, I'll mark the reference of @ array possible issue in the comments in case it manages to creep in (unlikely, but safer :) Thanks again for an interesting point. cLive ;-)	[reply]