perl5-porters@perl.org discussions for August 2012

197	fixing smartmatch just hard enough (and when, too)

So, last year I said "we really ought to cut most of smart match away." http://www.nntp.perl.org/group/perl.perl5.porters/2011/07/msg174272.html I've slept on it about 380 times, and I'm still for ...

Ricardo Signes
Aug 16, 2012 at 9:58 pm
Sep 26, 2012 at 3:10 pm

69	Variable unavailability inconsistency ([perl #113930] Lexical subs)

This program: #!perl -w sub foo { my $x; print $x, "\n"; sub bar { $x = 3 } } bar; foo; outputs this: Variable "$x" will not stay shared at - line 4. 3 But this one: #!perl -w sub foo { my $x; print ...

Father Chrysostomos via RT
Aug 3, 2012 at 11:08 pm
Sep 17, 2012 at 1:31 pm

53	[perl #114498] List slice sometimes ignores undefined items

I don't think it's particularly inconsistent. In the first case the slicing operation finds a defined element in the 0-index position of the RH and assigns it to the array on the LH, and then (I ...

James E Keenan via RT
Aug 21, 2012 at 1:53 am
Dec 4, 2014 at 6:44 pm

53	[perl #114602] utf8 problems (still, )

# New Ticket Created by Linda Walsh # Please include the string: [perl #114602] # in the subject line of all future correspondence about this issue. # <URL ...

Linda Walsh
Aug 27, 2012 at 1:32 am
Sep 1, 2012 at 12:41 am

43	[perl #114576] check if %hash 500x times slower than if keys %hash

# New Ticket Created by <span class="m_body_email_addr" title="13c5ef929661dcd293954c96a0b3b8a7" mgrigoriev@nvidia.com</span # Please include the string: [perl #114576] # in the subject line of all ...

Mgrigoriev @ nvidia . com
Aug 24, 2012 at 11:32 pm
Aug 29, 2012 at 9:38 am

38	Why smartmatch

Just to step back, I thought I'd mention why I think smartmatch is a useful feature given all the ambiguity we're discussing. (1) It's a generic "test" operator It's effectively $rhs- test($lhs). It ...

David Golden
Aug 24, 2012 at 1:54 pm
Sep 5, 2012 at 3:40 pm

28	[perl #114674] 'package' docs say 'our' is lexical (?)

# New Ticket Created by Jim Avera # Please include the string: [perl #114674] # in the subject line of all future correspondence about this issue. # <URL ...

Jim Avera
Aug 30, 2012 at 9:58 pm
Sep 5, 2012 at 2:01 am

25	[Encode] 2.45 released!

Porters, Just did $Encode::VERSION++. =head1 Availability svn co http://svn.coderepos.org/share/lang/perl/Encode/trunk git clone git://github.com/dankogai/p5-encode.git ...

Dan Kogai
Aug 5, 2012 at 11:27 pm
Dec 8, 2014 at 12:51 pm

22	[perl #33096] win32_msgwait runs forever with non-infinite timeout

Looking at http://perl5.git.perl.org/perl.git/blob/eb92badec069d2041ebf51c3654ed7e62e7309e9:/win32/win32.c#l2154 . There is a wall time check and the timer is decreased (actually increased towards ...

bulk 88 via RT
Aug 21, 2012 at 6:21 am
Sep 19, 2012 at 5:03 pm

20	Dear hackers - a small request

I've just learned that our beloved pumpking is, once again, receiving hate mail - off list, of course - over his treatment of documentation patches. Last time this came to my attention it was Jesse ...

Matt S Trout
Aug 9, 2012 at 10:36 pm
Aug 13, 2012 at 6:06 pm

19	op/magic.t tests 154,157

I see op/magic.t failing tests 154 and 157 for me (Windows, VC++), and also in various other smoke reports (not just Windows). Is anyone looking into this? Here's the relevant output on my system; # ...

Steve Hay
Aug 1, 2012 at 9:11 pm
Aug 18, 2012 at 12:56 am

18	unhappy darwin -Dusemorebits (was Re: Smoke [5.17.4] v5.17.3-184-g699aa44 FAIL(F) darwin 12.1.0 (Intel Core 2 Duo/))

That seems to be quite a spectacular run of SEGVs: Any idea what it might be? eg, does running any of the failing t/op tests under valgrind throw up something immediately obvious? Nicholas Clark

Nicholas Clark
Aug 31, 2012 at 3:25 pm
Sep 6, 2012 at 1:31 am

17	perl 5.16.1-RC1 is now available

I was busy rescuing the captured maiden when the dragon showed up. Fifty feed of scaled terror glared down at us with smoldering red eyes. Tendrils of smoke drifted out from between fangs larger than ...

Ricardo Signes
Aug 3, 2012 at 7:00 pm
Aug 25, 2012 at 10:08 am

16	Slowdown in longer hash keys

I was trying to benchmark the effects of moving to a binary search instead of a swash hash, as was discussed in the recent thread entitled "Seeking guidance on Benchmarking and potentially removing ...

Karl Williamson
Aug 24, 2012 at 8:15 pm
Aug 26, 2012 at 8:25 pm

15	NetWare v. PerlIO

Hi, Finally into trying a PerlIO build with the LibC and NetWare, and for the most part the results are 'encouraging' (for me anyway). Of the Perl Core only 2 files are hold-outs (NetWare specific ...

NormW
Aug 13, 2012 at 12:06 am
Aug 19, 2012 at 11:58 pm

13	fixing smartmatch (again (still))

Let's try again. First, though, I want to say that I was really happy with the discussion about this. It was on topic, interesting, and helpful. Even if there *was* a holy ton of it! ## The New ~~ ...

Ricardo Signes
Aug 28, 2012 at 6:43 pm
Aug 31, 2012 at 3:03 pm

13	RFC: pack()ing long words

pack() and unpack() can handle words of 1, 2, 4, and (if you built your perl right) 8 bytes. And I use the same magic characters (although without using pack and unpack) in Data::Hexdumper. However, ...

David Cantrell
Aug 13, 2012 at 11:41 am
Aug 27, 2012 at 10:34 am

12	[perl #114624] =encoding not honored by 'perldoc' command

# New Ticket Created by Jim Avera # Please include the string: [perl #114624] # in the subject line of all future correspondence about this issue. # <URL ...

Jim Avera
Aug 28, 2012 at 4:43 am
Nov 19, 2013 at 5:38 pm

12	[perl #88840] t/op/fork.t blocks in external process test on Win32

I am using C:\ perl -V Summary of my perl5 (revision 5 version 17 subversion 3 patch blead 2012-08-02.1 5:28:40 4276fd3639b8e3fdebe28a2eb81d455f0f33fd05 v5.17.2-193-g4276fd3) configura tion: Snapshot ...

bulk 88 via RT
Aug 2, 2012 at 11:17 pm
Aug 10, 2012 at 12:07 am

11	broken L<> when deleting dead ports

So, there's list of "special biologist word" platforms in 5.16.0's perldelta: https://metacpan.org/module/RJBS/perl-5.16.0/pod/perldelta.pod#Platforms-with-no-supporting-programmers: I'd like to bump ...

Nicholas Clark
Aug 14, 2012 at 2:26 pm
Sep 19, 2012 at 4:49 pm

11	[perl #114644] [PATCH] Add more tests to the default perl debugger ("perl -d" , lib/perl5db.pl).

Here is a newer patch from the same branch, this time also fixing bugs and moving the core code away from «for(;;)» loops. The original impetus for the latter conversion was the fact that an ad-hoc ...

Shlomi Fish via RT
Aug 30, 2012 at 4:08 pm
Sep 5, 2012 at 2:58 am

11	[perl #114496] win32_getenv and perl_free under PERL_DESTRUCT_LEVEL=1 trys to access freed tmps_stack

Is there a reason why STATIC void S_nuke_stacks(pTHX) { dVAR; while (PL_curstackinfo- si_next) PL_curstackinfo = PL_curstackinfo- si_next; while (PL_curstackinfo) { PERL_SI *p = PL_curstackinfo- ...

bulk 88 via RT
Aug 21, 2012 at 10:33 pm
Aug 27, 2012 at 12:38 am

10	[perl #114460] RFE: class as conditional self-defining keyword for package

# New Ticket Created by Linda Walsh # Please include the string: [perl #114460] # in the subject line of all future correspondence about this issue. # <URL ...

Linda Walsh
Aug 12, 2012 at 5:09 pm
Sep 27, 2012 at 10:48 pm

10	My Perl Foundation Grant for Improving the Perl Debugger Was Accepted

Hi all, in case you are not following the Perl Foundation’s blog, I am happy to announce that the Perl Foundation’s grant committee voted to accept my grant proposal to improve the Perl Debugger: * ...

Shlomi Fish
Aug 30, 2012 at 3:00 pm
Sep 2, 2012 at 2:08 pm

10	[perl #114574] Setting the SIGFPE handler to SIG_IGN is problematic, especially when embedding perl

# New Ticket Created by <span class="m_body_email_addr" title="829c4602319681bad5aea2778e859594" andres@anarazel.de</span # Please include the string: [perl #114574] # in the subject line of all ...

Andres @ anarazel . de
Aug 24, 2012 at 9:37 pm
Aug 25, 2012 at 9:56 pm

10	optimise by not Copy()ing @_ ?

While chatting with David Golden about subroutine entry, he commented on Copy(). I thought that we didn't copy things. I'm wrong (and I used to know this too) pp_entersub has this: cx- ...

Nicholas Clark
Aug 16, 2012 at 4:03 pm
Aug 20, 2012 at 10:11 am

9

jemalloc

Artur and Tim Bunce suggested investigating jemalloc, which is a high performance malloc implementation now used by (among others) FreeBSD and Facebook. Artur also suggest that our use of arenas of ...

Nicholas Clark
Aug 15, 2012 at 7:27 pm
Aug 16, 2012 at 6:55 pm

9	[perl #114414] indirect object heuristic misparses foo bar->baz

# New Ticket Created by <span class="m_body_email_addr" title="45db5860853bf0000bb73d4ad7c7677c" l.mai@web.de</span # Please include the string: [perl #114414] # in the subject line of all future ...

L . mai @ web . de
Aug 7, 2012 at 1:48 pm
Aug 7, 2012 at 9:40 pm

9	WIN64 builds with dmake

In the course of testing the new USE_64_BIT_INT option which 1f64ae1564 added to the Windows makefiles, I found that there are (existing) problems with doing a full 64-bit build (WIN64=define) when ...

Steve Hay
Aug 1, 2012 at 8:49 pm
Aug 3, 2012 at 7:56 am

8	[perl #114504] $ENV{foo}=undef

# New Ticket Created by Father Chrysostomos # Please include the string: [perl #114504] # in the subject line of all future correspondence about this issue. # <URL ...

Father Chrysostomos
Aug 19, 2012 at 7:20 pm
Oct 16, 2012 at 4:44 pm

8	Seeking guidance on Benchmarking and potentially removing swash caching

The data structure used to store and access Unicode properties and [bracketed character classes] in Perl regular expressions is a swash. A swash is a hash with a few keys. The value of one of those ...

Karl Williamson
Aug 19, 2012 at 6:15 pm
Aug 29, 2012 at 3:02 pm

8	changing Devel::Peek so it doesn't unconditionally print to STDERR

I've been writing a new debugger for perl [1] and a suggestion was provide Devel::Peek support. [2] The problem is that Devel::Peek writes to STDERR unconditionally and that's not what is always ...

Rocky Bernstein
Aug 25, 2012 at 11:43 pm
Aug 27, 2012 at 10:28 am

7	[perl #114444] [PATCH] [perlipc.pod] Replace some wrong use of "multithreaded" in perlipc.pod

# New Ticket Created by <span class="m_body_email_addr" title="f91fc0a43611147f2a559db40bda9083" shlomif@shlomifish.org</span # Please include the string: [perl #114444] # in the subject line of all ...

Shlomif @ shlomifish . org
Aug 10, 2012 at 10:18 am
Jun 4, 2013 at 10:03 am

7	[perl #114556] Bleadperl v5.17.3-44-g7261499 breaks ZEFRAM/Scope-Escape-0.004.tar.gz

Here is a more complete list: Devel::FindRef -- passes its tests, but still probably broken Broken; unpatched: B::C - broken already due to - op_attached Coro - tricky Lexical::Var - tricky ...

Father Chrysostomos via RT
Aug 31, 2012 at 9:07 pm
Oct 24, 2012 at 3:23 pm

7	[perl #114628] Bleadperl v5.17.3-133-g3da9985 breaks DOY/Moose-2.0603.tar.gz

# New Ticket Created by (Andreas J. Koenig) # Please include the string: [perl #114628] # in the subject line of all future correspondence about this issue. # <URL ...

Andreas J. Koenig) (via RT
Aug 28, 2012 at 4:49 am
Sep 20, 2012 at 6:58 am

7	UTF8 and Data::Dumper

Hi Karl, In the attached change (4b88fb76efce8c436e63b907c9842345d4fa77c7), you modified the XS in Data::Dumper to fix some UTF8 issue the details of which I do not know. That's great, but ...

Steffen Mueller
Aug 3, 2012 at 3:12 pm
Aug 7, 2012 at 6:59 am

6	What is UTF8CACHE for?

The documentation on this is lacking.

Karl Williamson
Aug 23, 2012 at 9:06 pm
Sep 26, 2012 at 6:06 pm

6	PATCH: PADLIST breaks C++ compiles

The attached patch gets it to compile, but I thought someone else should apply it, as I don't really know what I'm doing here, and what dual-life implications there might be, etc.

Karl Williamson
Aug 22, 2012 at 5:26 pm
Aug 28, 2012 at 1:12 am

5	[perl #114410] Substr giving wrong results on $1 with utf8

I’ve fixed this in commit 7d1328bb7c by reset utf8 caches in mg_get -- Father Chrysostomos --- via perlbug: queue: perl5 status: open https://rt.perl.org:443/rt3/Ticket/Display.html?id=114410

Father Chrysostomos via RT
Aug 31, 2012 at 1:20 am
Sep 9, 2012 at 5:31 am

5	utf8 pos cache: always keep the most recent value

I've just pushed the following. Can anyone see any flaw in my logic? commit 88621eaff54e5f5ea9adea13440d1750968643a6 Author: David Mitchell <davem@iabyn.com AuthorDate: Tue Aug 21 10:55:00 2012 +0100 ...

Dave Mitchell
Aug 21, 2012 at 10:52 am
Aug 27, 2012 at 4:09 pm

5	ALIAS breaks PPCODE (Re: [perl.git] branch blead, updated. v5.17.2-321-gbe8851f)

In article <E1T1CWq-0006Wa-FZ@camel.ams6.corp.booking.com , <span class="m_body_email_addr" title="c5daac4ffa518ab29d93f4c471e4b974" nick@ccl4.org</span ("Nicholas Clark") wrote: The problem with ...

Craig A. Berry
Aug 16, 2012 at 11:04 pm
Aug 19, 2012 at 10:56 am

5	Pod-Simple 3.23?

Is there any sign of a Pod-Simple 3.23 on the horizon? ... perhaps in time for 5.17.3 on 20th? Bleadperl is currently on 3.20 because the last time it was updated to 3.22 it caused failures in ...

Steve Hay
Aug 10, 2012 at 1:27 am
Aug 14, 2012 at 11:40 pm

5	Re: [perl #88840] [PATCH] t/op/fork.t blocks in external process test on Win32

I tried this and ran t/op/fork.t in a loop. First time it deadlocked after 7 runs, second it deadlocked after 27 runs. I increased delay to 10 ms and it successfully ran the test 500 times. Also, ...

Tony Cook
Aug 10, 2012 at 7:32 am
Aug 14, 2012 at 4:57 pm

5	blead (Zlib) no longer compiles in gcc's C++ mode

Commit 9d90bd60fec830834e56dfd4cc1aaf499c322831 broke this. The attached patch adds the missing casts that are required in C++ mode. But I'm not sure what to do with it, since cpan is upstream

Karl Williamson
Aug 10, 2012 at 12:07 am
Aug 11, 2012 at 11:46 am

5	[perl #114404] Filehandle capture confuses PerlIO layers

# New Ticket Created by David Golden # Please include the string: [perl #114404] # in the subject line of all future correspondence about this issue. # <URL ...

David Golden
Aug 7, 2012 at 12:19 am
Aug 7, 2012 at 7:46 am

5	[perl #114378] cond_signal does not wake up a thread

# New Ticket Created by Matti Linnanvuori # Please include the string: [perl #114378] # in the subject line of all future correspondence about this issue. # <URL ...

Matti Linnanvuori
Aug 2, 2012 at 9:36 am
Aug 3, 2012 at 10:08 am

5	[perl #114004] Bleadperl v5.17.1-280-ge6cee8c breaks ROKR/String-Comments-Extract-0.023.tar.gz

I cannot reproduce this on v5.17.2-146-g7e2a0d4. -- Father Chrysostomos --- via perlbug: queue: perl5 status: new https://rt.perl.org:443/rt3/Ticket/Display.html?id=114004

Father Chrysostomos via RT
Aug 1, 2012 at 5:52 am
Aug 3, 2012 at 3:24 am

4	[perl #114576] check if %hash 500x times slower than if keys %hash

I’m reopening this, as there are still unresolved issues. -- Father Chrysostomos --- via perlbug: queue: perl5 status: open https://rt.perl.org:443/rt3/Ticket/Display.html?id=114576

Father Chrysostomos via RT
Aug 30, 2012 at 3:44 am
Jun 14, 2013 at 9:41 am

4	[perl #114424] Bleadperl v5.17.0-325-gbaed7fa breaks OPI/Linux-Smaps-0.09.tar.gz

# New Ticket Created by (Andreas J. Koenig) # Please include the string: [perl #114424] # in the subject line of all future correspondence about this issue. # <URL ...

Andreas J. Koenig) (via RT
Aug 8, 2012 at 5:11 am
Sep 19, 2012 at 1:15 pm

4	[perl #114532] Refactor t/op/arith.t to not make TAP by hand

# New Ticket Created by Colin Kuskie # Please include the string: [perl #114532] # in the subject line of all future correspondence about this issue. # <URL ...

Colin Kuskie
Aug 22, 2012 at 3:56 am
Sep 8, 2012 at 6:09 pm

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