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Postings from June 2019
I expect this will be due to commit
ce6f496d720f6206455628425320badd95b07372, with which RT 41202 was resolved.
With that commit, we can expect that expressions like "0xFF"+0 and
"0b1001"+0 will numify to the same NV as POSIX::strtod("0xFF") and
POSIX::strtod("0b1001") respectively.
Is this a behaviour that should be changed ?
For me, strtod() does not understand the '0b' prefix and simply numifies
such strings to an NV of zero.
C:\>perl -MPOSIX -le "@x=POSIX::strtod('0b11111'); print for @x;"
0
6
But it does understand the '0x' prefix:
C:\>perl -MPOSIX -le "@x=POSIX::strtod('0xff'); print for @x;"
255
0
Cheers,
Rob
On Fri, Jun 28, 2019 at 12:50 AM H.Merijn Brand <h.m.brand@xs4all.nl> wrote:
> On Thu, 27 Jun 2019 07:35:45 -0700, "Dan Book \(via RT\)"
> <perlbug-followup@perl.org> wrote:
>
> > perl -Mwarnings -e 'print "0xFF" + 0, "\n"'
>
> Interesting
>
> $ perl-all -le 'print "0xFF" + 0'
> Running perl-all -le print "0xFF" + 0
>
> === base/perl5.6.0 5.006 x86_64-linux
> 255
> === base/perl5.6.1 5.006001 x86_64-linux-perlio
> 255
> === base/tperl5.6.1 5.006001 x86_64-linux-thread-multi-ld-perlio
> 255
> === base/perl5.6.2 5.006002 x86_64-linux-perlio
> 255
> === base/tperl5.6.2 5.006002 x86_64-linux-thread-multi-ld-perlio
> 255
> === base/perl5.6 5.006002 x86_64-linux-perlio
> 255
> === base/tperl5.6 5.006002 x86_64-linux-thread-multi-ld-perlio
> 255
> === base/perl5.8.0 5.008 x86_64-linux
> 0
> === base/tperl5.8.0 5.008 x86_64-linux-thread-multi-ld
> 0
> === base/perl5.8.1 5.008001 x86_64-linux
> 0
> === base/tperl5.8.1 5.008001 x86_64-linux-thread-multi-ld
> 0
> === base/perl5.8.2 5.008002 x86_64-linux
> 0
>
> ... 0 all the way to
>
> === base/tperl5.28 5.028001 x86_64-linux-thread-multi-ld
> 0
> === base/perl5.29.0 5.029000 x86_64-linux
> 0
> === base/tperl5.29.0 5.029000 x86_64-linux-thread-multi-ld
> 0
> === base/perl5.29.1 5.029001 x86_64-linux
> 0
> === base/tperl5.29.1 5.029001 x86_64-linux-thread-multi-ld
> 0
> === base/perl5.29.2 5.029002 x86_64-linux
> 255
> === base/tperl5.29.2 5.029002 x86_64-linux-thread-multi-ld
> 255
> === base/perl5.29.3 5.029003 x86_64-linux
> 255
> === base/tperl5.29.3 5.029003 x86_64-linux-thread-multi-ld
> 255
> === base/perl5.29.4 5.029004 x86_64-linux
> 255
> === base/tperl5.29.4 5.029004 x86_64-linux-thread-multi-ld
> 255
> === base/perl5.29.5 5.029005 x86_64-linux
> 255
> === base/tperl5.29.5 5.029005 x86_64-linux-thread-multi-ld
> 255
> === base/perl5.29.6 5.029006 x86_64-linux
> 255
> === base/tperl5.29.6 5.029006 x86_64-linux-thread-multi-ld
> 255
> === base/perl5.29 5.029006 x86_64-linux
> 255
> === base/tperl5.29 5.029006 x86_64-linux-thread-multi-ld
> 255
>
> I have more perl's at home
>
> --
> H.Merijn Brand http://tux.nl Perl Monger http://amsterdam.pm.org/
> using perl5.00307 .. 5.29 porting perl5 on HP-UX, AIX, and openSUSE
> http://mirrors.develooper.com/hpux/ http://www.test-smoke.org/
> http://qa.perl.org http://www.goldmark.org/jeff/stupid-disclaimers/
>
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