Re^2: syntax of multidimensional arrays and hashes

Sorry that I don't understand, but I just don't.
$tsize[$tnum] = @{$threads{$thread}};
is nonsense.

Well syntactically it's correct %threads is a HoA, so @tsize is supposed to hold the sizes of these (now indexedą) arrays.

I agree that it's hard to imagine why to store the sizes statically...

Cheers Rolf

(1) Well should be noted that $tnum is initialized but never incremented... :-)

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Re^3: syntax of multidimensional arrays and hashes by Marshall (Canon) on Jul 18, 2009 at 05:17 UTC
The weird part here is that `$tsize[$tnum]` has pretty much no useful meaning in the code. In a list context, @{$threads{$thread}} has all the values in $threads{$threads}. In a scalar context @{$threads{$thread}} is the number of things in the @{$threads{$thread}} list. `$tsize[$tnum] = @{$threads{$thread}};` doesn't appear to have any real meaning or usefulness. use @{$threads{$thread}} instead of trying to assign a scalar value to a 'C' style @tsize array.	[reply] [d/l] [select]
Re^4: syntax of multidimensional arrays and hashes by hsfrey (Beadle) on Jul 19, 2009 at 04:43 UTC
I'm going to use @tsize a lot later, eg: to sort all the arrays, so I wanted to access it easily in parallel with the other arrays. And Yes, you've outed me! <G> I'm really a C programmer at heart! It'll take a while before I start thinking in Perl. In any case, $tsize is unrelated to my problem of being unable to retrieve the elements of the array members of the hash.	[reply]
Re^3: syntax of multidimensional arrays and hashes by hsfrey (Beadle) on Jul 19, 2009 at 04:37 UTC
Rolf: >should be noted that $tnum is initialized but never incremented< Yes it is - I just cut it off when copying the code to post it this time. It's there in the full code I posted previously.	[reply]