Forum: Ruby Re: Shortcut for .pack("p*").unpack("l").first ?

Announcement (2017-05-07): is now read-only since I unfortunately do not have the time to support and maintain the forum any more. Please see and for other Rails- und Ruby-related community platforms.
Berger, Daniel (Guest)
on 2006-05-03 20:58
(Received via mailing list)
> > > an extension then there's probably an easier way to get at the
> > str2 = "hello"
> > # Using string addresses
> >, addr2) # 0
> >, addr3) # -1
> Now you lost me again: if you can use a string as well as a
> pointer then why bother to use the pointer? Are there places
> where you cannot do that?

Yes, pointers to pointers.  Typically for unraveling data structures.

> Just a thought: does it make sense to raise an exception or
> print a warning if the string is not frozen?  Otherwise the
> address could point into limbo...

Hm, good point.


This communication is the property of Qwest and may contain confidential
privileged information. Unauthorized use of this communication is
prohibited and may be unlawful.  If you have received this communication
in error, please immediately notify the sender by reply e-mail and
all copies of the communication and any attachments.
This topic is locked and can not be replied to.