Oh wise monks,

I have toiled at this question and can't seem to get it.

I have a data structure that's a hash consisting of an array of arrays, created like this:

push @{$results{$addr}},[@output];

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I need to get the count of how many elements are in the lowest level of this structure (that is, how many @outputs are there in the hash $results{$addr}).

I've tried a lot of solutions, and none seem to work. This:

my @a = $results{$addr};

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returns an array with a single element, that then contains all the @output's. But if I try to 'scalar @a' I get '1', and if I scalar @a[0] or scalar($a[0]) I get a bunch of ARRAY refs.

$a = $results{$addr}[0] returns what appears to be an array ref in $a, but scalar(@$a) doesn't return anything, oddly.

No more direct manipulation of $results{$addr} seems to result in anything usable... If I do scalar @$results{$addr} I get 'Variable "$results" is not imported'. If I try print scalar $results{$addr} I get a list of array refs again.

I'm quite frustrated and though I feel I'm missing something simple, I can't figure out what the heck it might be.

All help appreciated.
"Non sequitur. Your facts are un-coordinated." - Nomad

In reply to Counting the elements of a hash of arrays of arrays by Clownburner

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