This Week on perl5-porters (14-20 June 2004)
Maybe it's due to the conferences, but this week was a low-traffic one.
When tieing doesn't return a tied
Peter Scott asks: if a tie constructor doesn't return a blessed
reference, the resulting object is not tied, but perl doesn't produce
any warning. Is this behaviour deliberate? Or, in other words, is there
useful (and documented) cases where a tie constructor would like to
decline the construction of a tied object.
http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2004-06/msg00379.html
Taint things
Ton Hospel asks whether SvPOK should return "true" on tainted strings.
Nicholas Clark answers negatively, arguing that tainted strings have
taint magic, meaning that their string value shouldn't be accessed
directly. Paul Fenwick further comments on the handling on tainted
scalars through C code.
http://groups.google.com/groups?selm=caibs1$elq$1%40post.home.lunix
Meanwhile, Tim Bunce suggests that adding a mechanism to taint
everything would be a good way to flush out magic-related bugs (more
precisely, missing SvGETMAGIC calls to get string values).
http://groups.google.com/groups?selm=20040618170806.GB476%40dansat.data-plan.com
Peculiar locale failures
Some regression tests for the newest versions of I18N::LangInfo are
failing for Rafael. Besides some corrections that have been made by Sean
Burke to the tests, tests keeps failing, and a system problem is
suspected.
In Brief
Andrew Savige reports a case of random crash when sort() with a named
subroutine is invoked from different threads. (Bug #30333.) I imagine
that the implementation of sort() calling subroutines must be reviewed
for thread-safety.
Paul Johnson wonders whether the "deep recursion" warning could be
issued only for deeper recursions than currently. There is no compelling
reason to so this, however.
http://groups.google.com/groups?selm=20040618161310.GA5773%40pjcj.net
Colin Watson reports that localising the $? variable looses the exit
value from the "perl" command. This shouldn't occur, since $? is
documented to affect the exit status of "perl" only within END blocks.
(Bug #30296.)
About this summary
This summary was written by Rafael Garcia-Suarez. Weekly summaries are
published on http://use.perl.org/ and posted on a mailing list, which
subscription address is [EMAIL PROTECTED] Comments and
corrections welcome.
