Because the code is different :)

True, the code is different, but the expressions are all equivalent: they're all 'degenerate' single-item slices.

Because @warnme... is different from @$derefNowarn...

I don't understand the significance of this statement. Are scalar derefs in this context (single-item slices) simply not warned about? If so, is there a rationale for this? (I could understand if this was simply beyond the scope of the warnings system as it now stands. After all, you can't warn about everything.)

For verbosity see diagnostics...

diagnostics are indeed more verbose, but don't throw more light, for me, on this (admittedly somewhat trivial) problem. Oh well, going to bed now...

In reply to Re^11: Perl list items by AnomalousMonk
in thread Perl list items by robertw

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.