SPUG: 5.6.1 vs. 5.005
Alex Leites
Alex.Leites at esca.com
Wed Sep 19 11:51:46 CDT 2001
> > Perhaps this question is outdated, but I recently migrated one of my
> > boxes from Linux2.4.x to FreeBSD4.3. I had been using perl5.6.1
> > flawlessly for quite some time now, but FreeBSD4.3 still relies on
> > 5.005. My programs and the CPAN modules I use compile fine under
> > 5.005.
> >
> > However, I'm wondering if there are any signficant
> > performance/implementation differences between 5.005 and 5.6.1 that
> > would motivate me to upgrade to 5.6.1. Anyone know if 5.6.1 performs
> > better, uses resources better, or something like that?
>
> One of the biggest incentives for me is that 5.6 handles dying with
> objects instead of just strings, which allows for true exception
> handling.
This is not really new in 5.6, 5.005 can do it as well, as experimental
feature (thus not documented in 5.005 perlfunc):
http://www.perldoc.com/perl5.005/pod/perldelta.html#Extended-support-for-exc
eption-handling
Another good link for Perl EH:
http://perl.apache.org/guide/perl.html#Exception_Handling_for_mod_perl
Also, for those interested in circular references etc. have a look at
Weak References, experimental in 5.6:
http://www.perldoc.com/perl5.6/pod/perldelta.html#Weak-references
Alex
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