Slowly, please. :-) Bitwise anything is new to me, and I struggle with even understanding what it means.

Yes, I can see how (1 << $firstbit) is a constant. But its purpose is to get at that first bit, 0b10000000000000000000000000000000, i.e. 2**31. What is a better way to do that? I originally had "2**$firstbit" in place of "(1 << $firstbit)". Would that be better here? Is that what you mean by 'extracting' it?

As for your second paragraph, you'll have to slow down and explain how to do what you're saying, as you lost me completely with everything beginning with "checking the high-bit."

In any case, thanks!

In reply to Re^2: Implementing a signed/sign-propagating right bitwise shift by LonelyPilgrim
in thread Implementing a signed/sign-propagating right bitwise shift by LonelyPilgrim

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.