As dave_the_m points out, you're not dereferencing quite properly. Whenever I get output that doesn't match what I think it should, I always (always always) resort to Data::Dumper. Add something like this to your code:

use Data::Dumper; print Dumper($mctest);
You'll see that it's not an array of arrays very quickly this way. And that should lead you to suspect you're using it incorrectly. You may still have the question of how to dereference incorrectly, but at least it'll be the right question. :-)

Data::Dumper has given me many a forehead-slapping "d'oh!" moment. Why? Because it has already had all the derefencing bugs worked out. It just works. My code generally isn't quite so reliable. :-)


In reply to Re^3: Blessing object changes array attribute in array of arrays? by Tanktalus
in thread Blessing object changes array attribute into array of arrays? by mclow

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.