I do not understand your output in this case 'vzI&#..'

The last of the 4 characters, the ═ bit, is just a side effect of pasting console output into PMs code block.

Somewhere along the line, some characters with the high-bit set (ie. chars greater than 127) get converted into unicode html escape sequences.

Outside of a code block that looks like this: ═, which is exactly how it appeared on my console prior to C&P.

Is this behaviour unique to C?

No, it also applies to 'c' & 'W'.

As for documentation: for unpack, all it basically says is that it is the reverse of pack. Look at the docs for the latter, and think about the logical reverse.

But more than any other piece of Perl, the *only* way to understand pack & unpack, is to get yourself a REPL and sit and play.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

In reply to Re^5: How do unpack templates work by BrowserUk
in thread How do unpack templates work by unlinker

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.