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[perl #117355] [lu]cfirst don't respect 'use bytes'

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From:
Brian Fraser
Date:
March 26, 2013 00:44
Subject:
[perl #117355] [lu]cfirst don't respect 'use bytes'
Message ID:
rt-3.6.HEAD-28177-1364258681-448.117355-75-0@perl.org
# New Ticket Created by  Brian Fraser 
# Please include the string:  [perl #117355]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org:443/rt3/Ticket/Display.html?id=117355 >


This is a bug report for perl from fraserbn@gmail.com,
generated with the help of perlbug 1.39 running under perl 5.16.2.


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

$_ = "\x{30cb}";
use Devel::Peek;
use bytes;
Dump $_ for uc, lc, CORE::fc, ucfirst, lcfirst;

ucfirst & lcfirst return a UTF-8 flagged scalar, while the first three
return bytes.

[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
    category=core
    severity=high
---
Site configuration information for perl 5.16.2:

Configured by hugmeir at Tue Nov 20 17:20:00 ART 2012.

Summary of my perl5 (revision 5 version 16 subversion 2) configuration:

  Platform:
    osname=linux, osvers=3.5.0-18-generic, archname=x86_64-linux-thread-multi
    uname='linux naw 3.5.0-18-generic #29-ubuntu smp fri oct 19
10:26:51 utc 2012 x86_64 x86_64 x86_64 gnulinux '
    config_args='-de
-Dprefix=/home/hugmeir/perl5/perlbrew/perls/perl-5.16.2 -DDEBUGGING
-Dusethreads -Doptimize=-g -O0 -ggdb3 -Uversiononly -Accflags=-Wall
-Wextra -Aeval:scriptdir=/home/hugmeir/perl5/perlbrew/perls/perl-5.16.2/bin'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -Wall -Wextra
-DDEBUGGING -fno-strict-aliasing -pipe -fstack-protector
-I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-g -O0 -ggdb3',
    cppflags='-D_REENTRANT -D_GNU_SOURCE -Wall -Wextra -DDEBUGGING
-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include'
    ccversion='', gccversion='4.7.2', 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 -ldb -ldl -lm -lcrypt -lutil -lpthread -lc
    perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
    libc=, so=so, useshrplib=false, libperl=libperl.a
    gnulibc_version='2.15'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fPIC', lddlflags='-shared -g -O0 -ggdb3
-L/usr/local/lib -fstack-protector'

Locally applied patches:


---
@INC for perl 5.16.2:
    /home/hugmeir/.perlbrew/libs/perl-5.16.2@all/lib/perl5/x86_64-linux-gnu-thread-multi
    /home/hugmeir/.perlbrew/libs/perl-5.16.2@all/lib/perl5/x86_64-linux-thread-multi
    /home/hugmeir/.perlbrew/libs/perl-5.16.2@all/lib/perl5
    /home/hugmeir/perl5/perlbrew/perls/perl-5.16.2/lib/site_perl/5.16.2/x86_64-linux-thread-multi
    /home/hugmeir/perl5/perlbrew/perls/perl-5.16.2/lib/site_perl/5.16.2
    /home/hugmeir/perl5/perlbrew/perls/perl-5.16.2/lib/5.16.2/x86_64-linux-thread-multi
    /home/hugmeir/perl5/perlbrew/perls/perl-5.16.2/lib/5.16.2
    .

---
Environment for perl 5.16.2:
    HOME=/home/hugmeir
    LANG=en_US.UTF-8
    LANGUAGE (unset)
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/home/hugmeir/.rbenv/shims:/home/hugmeir/.rbenv/bin:/home/hugmeir/.perlbrew/libs/perl-5.16.2@all/bin:/home/hugmeir/perl5/perlbrew/bin:/home/hugmeir/perl5/perlbrew/perls/perl-5.16.2/bin:/home/hugmeir/.rbenv/shims:/home/hugmeir/.rbenv/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
    PERL5LIB=/home/hugmeir/.perlbrew/libs/perl-5.16.2@all/lib/perl5/x86_64-linux-gnu-thread-multi:/home/hugmeir/.perlbrew/libs/perl-5.16.2@all/lib/perl5
    PERLBREW_BASHRC_VERSION=0.46
    PERLBREW_HOME=/home/hugmeir/.perlbrew
    PERLBREW_LIB=all
    PERLBREW_MANPATH=/home/hugmeir/.perlbrew/libs/perl-5.16.2@all/man:/home/hugmeir/perl5/perlbrew/perls/perl-5.16.2/man
    PERLBREW_PATH=/home/hugmeir/.perlbrew/libs/perl-5.16.2@all/bin:/home/hugmeir/perl5/perlbrew/bin:/home/hugmeir/perl5/perlbrew/perls/perl-5.16.2/bin
    PERLBREW_PERL=perl-5.16.2
    PERLBREW_ROOT=/home/hugmeir/perl5/perlbrew
    PERLBREW_VERSION=0.46
    PERL_BADLANG (unset)
    PERL_LOCAL_LIB_ROOT=/home/hugmeir/.perlbrew/libs/perl-5.16.2@all
    PERL_MB_OPT=--install_base /home/hugmeir/.perlbrew/libs/perl-5.16.2@all
    PERL_MM_OPT=INSTALL_BASE=/home/hugmeir/.perlbrew/libs/perl-5.16.2@all
    SHELL=/bin/bash


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