You are trying to make an array of arrays, and this is not possible in perl.

When you hear of AoA, it is really an array of array references! So @tlist$tnum is not doing at all what you expected, use strict; use warnings; could have given you some hints about the problem.

I think this is more like what you were trying to achieve (not tested)

foreach $thread (keys %threads) {
    $tsub[$tnum] = $thread;    
    $tlist[$tnum] = $threads{$thread};
    $tsize[$tnum] = @{$tlist[$tnum]};
    $tnum++;
}

print "\n\nThe Thread Arrays\n\n";
for ($i=0;$i<$tnum ;$i++) {
    print "\n$tsub[$i], size=$tsize[$i], @{$tlist[$i]}";
}

[download]

Now @tlist is an array of reference, and it should work.

As a matter of style, I would write it in a slightly different fashion>

# Define the arrays as lexical vars. 
# So you are sure they are not conflicting with other vars in the prog
+ram
my @tsub;
my @tlist;
foreach $thread (keys %threads) {
    # using push you don't need the counter
    push(@tsub, $thread);
    push(@tlist, $threads{$thread}); 
}

print "\n\nThe Thread Arrays\n\n";
for ($i=0;$i<@tsub ;$i++) {
    # compute tsize only when you need it, another array is useless
    my $tsize=@{$tlist[$i]};
    print "\n$tsub[$i], size=$tsize, @{$tlist[$i]}";
}

[download]

Rule One: "Do not act incautiously when confronting a little bald wrinkly smiling man."

In reply to Re: hash of arrays to array of arrays by psini
in thread hash of arrays to array of arrays by hsfrey

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.