Beefy Boxes and Bandwidth Generously Provided by pair Networks
more useful options

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
They are not the same. Sure, they both "point" to something, but that's about it. In C, a pointer is just an integer - you can add to it: you can say, don't give me the thing it's pointing at, give me whatever is 5 places further. Regardless whether 5 places further actually has stored something that's meaningful.

You can't do that in Perl. You cannot stuff an integer in a reference and have Perl retrieve what's in that memory address. And while you can add something to a reference, the result is a number - not a reference. You cannot dereference the result of the addition.

IMO, saying that "Perl references" and "C pointer" are kind of the same is only useful if you know enough Perl and C to know the differences.

In reply to Re: difference between pointer and referrence in perl by JavaFan
in thread difference between pointer and referrence in perl by sir_com

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 or How to display code and escape characters are good places to start.
Log In?

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

How do I use this? | Other CB clients
Other Users?
Others exploiting the Monastery: (5)
As of 2021-06-16 02:18 GMT
Find Nodes?
    Voting Booth?
    What does the "s" stand for in "perls"? (Whence perls)

    Results (74 votes). Check out past polls.