Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
After reading the pack/unpack tutorial by pfaut I felt brave and decided to do some things with the scariest function in Perl. I saw something very weird that I hope you might explain to me.

$number = 1145258561; print pack( "l", $number ); # prints: ABCD
The number above is the result of a concatenation of the letters ABCD ( I'll put the whole thing in the code snippets section later ). What I don't understand is why Perl convert the number into four characters instead of into a "long" number

I'm completely puzzled, and Perl even converts the number into the correct letters ( okay, I converted them to binary, concatenated and converted to a long again before doing the above ). Could somebody explain this madness to me, as my work with pack/unpack is purely hit-and-miss :-(

Thanks for your help.

In reply to pack peculiarity by bl0rf

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?

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

How do I use this?Last hourOther CB clients
Other Users?
Others avoiding work at the Monastery: (4)
As of 2024-05-20 06:02 GMT
Find Nodes?
    Voting Booth?

    No recent polls found