Yes. You've committed the same flaw as:
@array = undef;
which is that it makes @array have one element of undef, not zero elements (empty).

Do not use undef for anything other than the scalar undefined value. Your program could use:

my %href = ();
But I'd probably flag that on code review as "potential signs of cluelessness - look very carefully at the remaining code", since that's also the default, and people who override the default with the default tend to make other mistakes. {grin}

-- Randal L. Schwartz, Perl hacker


In reply to Re: Odd number of elements in hash assignment warning. Use of uninitialized value warning by merlyn
in thread Odd number of elements in hash assignment warning. Use of uninitialized value warning by princepawn

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.