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Postings from September 2014
On Sat Jul 27 05:06:39 2002, nospam-abuse@ilyaz.org wrote:
> [A complimentary Cc of this posting was sent to
> Martien Verbruggen
> <mgjv@tradingpost.com.au>], who wrote in article
> <slrnak1205.n5.mgjv@verbruggen.comdyn.com.au>:
> > But why would you consider using anything but the ($a, $b) = ($b, $a)
> > expression? It's clearly the clearest, and will work for anything.
>
> IIRC, this construction (well, a similar one) has subtle problems with
> aliasing present. Found this the hard way with File::Find...
>
> perl5.6.0 -wle 'BEGIN{ *a=\$a::a; *b = \$b::b } \
> ($a, $b) = (2,3); print "$a $b"; \
> ($a::a, $b::b) = ($b, $a); print "$a $b"'
> 2 3
> 3 3
>
> I think this may be considered as a bug, the parser has enough info to
> detect this...
>
> Hope this helps,
Twelve years after the report, this is finally fixed, in commit ff2a62e0c.
--
Father Chrysostomos
---
via perlbug: queue: perl5 status: stalled
https://rt.perl.org/Ticket/Display.html?id=15667
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