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[perl #114594] version->new("0.52_0") numifies incorrectly

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From:
David Golden
Date:
August 25, 2012 17:46
Subject:
[perl #114594] version->new("0.52_0") numifies incorrectly
Message ID:
rt-3.6.HEAD-11172-1345941980-1436.114594-75-0@perl.org
# New Ticket Created by  David Golden 
# Please include the string:  [perl #114594]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=114594 >



This is a bug report for perl from dagolden@cpan.org,
generated with the help of perlbug 1.39 running under perl 5.16.0.


-----------------------------------------------------------------
[Please describe your issue here]

As discussed on #toolchain:

haarg> perl -mversion -le'print version->new("0.52_0")->numify' # outputs 0._520

xdg> haarg, i think it's a bug because 0._520 warns if eval'd ("misplaced _ in number") and that shouldn't happen.

xdg> i'm not sure what would be right.  possibly 0.520_000, but that might compare funny

xdg> $ perl -mversion -we 'my $v1=version->new("0.52_0"); my $v2=version->new("0.520_000"); say $v1==$v2' # true (whew)

xdg> $ perl -mversion=is_lax -we 'my $v1=version->new("0.52_0"); say $v1->normal . (is_lax($v1->normal) ? " lax" : " not lax")' 

xdg> v0_520.0 not lax

xdg> $ perl -mversion=is_lax -we 'my $v1=version->new("0.520_000"); say $v1->normal . (is_lax($v1->normal) ? " lax" : " not lax")' 

xdg> v0.520_0 lax


[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
    category=core
    severity=medium
---
Site configuration information for perl 5.16.0:

Configured by david at Fri Jul 20 11:04:40 PDT 2012.

Summary of my perl5 (revision 5 version 16 subversion 0) configuration:
   
  Platform:
    osname=linux, osvers=3.0.0-22-generic, archname=x86_64-linux
    uname='linux icarus 3.0.0-22-generic #36-ubuntu smp tue jun 12 17:37:42 utc 2012 x86_64 x86_64 x86_64 gnulinux '
    config_args='-de -Dprefix=/home/david/perl5/perlbrew/perls/perl-5.16.0'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=undef, usemultiplicity=undef
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O2',
    cppflags='-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
    ccversion='', gccversion='4.6.1', gccosandvers=''
    intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
    ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -fstack-protector -L/usr/local/lib'
    libpth=/usr/local/lib /lib/x86_64-linux-gnu /lib/../lib /usr/lib/x86_64-linux-gnu /usr/lib/../lib /lib /usr/lib
    libs=-lnsl -ldl -lm -lcrypt -lutil -lc
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc
    libc=, so=so, useshrplib=false, libperl=libperl.a
    gnulibc_version='2.13'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib -fstack-protector'

Locally applied patches:
    

---
@INC for perl 5.16.0:
    /home/david/perl5/perlbrew/perls/perl-5.16.0/lib/site_perl/5.16.0/x86_64-linux
    /home/david/perl5/perlbrew/perls/perl-5.16.0/lib/site_perl/5.16.0
    /home/david/perl5/perlbrew/perls/perl-5.16.0/lib/5.16.0/x86_64-linux
    /home/david/perl5/perlbrew/perls/perl-5.16.0/lib/5.16.0
    .

---
Environment for perl 5.16.0:
    HOME=/home/david
    LANG=en_US.UTF-8
    LANGUAGE=en_US:en
    LC_COLLATE=C
    LC_CTYPE=en_US.UTF-8
    LC_MESSAGES=en_US.UTF-8
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/home/david/perl5/perlbrew/bin:/home/david/perl5/perlbrew/perls/perl-5.16.0/bin:~/bin:~/git/utility-scripts:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/opt/vagrant/bin:.
    PERLBREW_BASHRC_VERSION=0.45
    PERLBREW_HOME=/home/david/.perlbrew
    PERLBREW_MANPATH=/home/david/perl5/perlbrew/perls/perl-5.16.0/man
    PERLBREW_PATH=/home/david/perl5/perlbrew/bin:/home/david/perl5/perlbrew/perls/perl-5.16.0/bin
    PERLBREW_PERL=perl-5.16.0
    PERLBREW_ROOT=/home/david/perl5/perlbrew
    PERLBREW_VERSION=0.45
    PERL_BADLANG (unset)
    PERL_EXTUTILS_AUTOINSTALL=--defaultdeps
    SHELL=/bin/bash


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