It spits out two checksums, one is in paranthesis. What does each indicate?

I was hoping you understood that already, since the output of two different values is based directly on the original code that you posted.

As I mentioned earlier, I do not understand the need for the second value. The first value is simply the CRC32 checksum computed from a given data file. The second value is the "ones complement" of the first value (as you can see from the code, it is derived by subtracting the first value from 0xffffffff).

If you don't see any need for that second value, just ignore it (or remove if from the printf statement).

In reply to Re^5: Checksum Help by graff
in thread Checksum Help by TeamViterbi

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.