Rejected how? "Invalid type 'Q' in unpack"? Note the comment at the bottom of my previous post. Your Perl can't handle 64-bit numbers because your processor can't handle them natively. You could build a Perl that supports 64-bit numbers (even if your processor doesn't handle them natively), or you could use Math::BigInt to hold such a big number. I'll even code the solution if you tell me which byte ordering you want to use.

turns out that the last two fields are six bytes and eight bytes

There's no unpack specifier for reading 6-byte ints. j and J might be 6-bytes on your machine, but I'd be surprised. Nobody uses 6-byte ints. That's part of why I said your data is messed up. 

You expect         To get that        What you have
----------------   ----------------   ----------------
0                  0000000000000000
5967*              000000000000174f   000000000000174f
74                 000000000000004a     0100000000004a
74                 000000000000004a   000000000000004a

[download]

* — You actually said 5976. I presume that's a typo.

In reply to Re^3: reading packed unsigned long long by ikegami
in thread reading packed unsigned long long by Spooky

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.