Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

Thanks for the update/correction ... although saying that I'm wrong is merely semantics. The URL you point to leaves me with the impression that Larry is implying that this could change in the future - whether that is within Perl5 (as the implication at the time could have been) or Perl6, is left open. Given that, I would suggest that any statement implying that this code "works" is misleading. It happens to work with a current version of perl, but is open to breakage under newer versions of perl (including PONIE), with Larry not sounding too concerned about it.

I'm somewhat curious if intervening memory usage could clobber this trick - e.g., calling IsMatrix early, then using 200MB of memory, then coming back and calling IsMatrix a second time. Or does this trick make Perl think it's static (closed-off scope with lexical references in a global sub), thus leaking memory where, without the if 0, it would not be a memory leak? (I realise that "memory leak" is debatable here.)


In reply to Re^2: my $cache = undef if undef; by Tanktalus
in thread my $cache = undef if undef; by szabgab

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!
  • 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, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            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.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others chanting in the Monastery: (10)
    As of 2014-07-24 21:11 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      My favorite superfluous repetitious redundant duplicative phrase is:









      Results (167 votes), past polls