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[perl #22181] goto undefines my() variables
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From:
Ilya Sandler
Date:
May 12, 2003 13:25
Subject:
[perl #22181] goto undefines my() variables
Message ID:
rt-22181-57482.6.90649485196403@bugs6.perl.org
# New Ticket Created by Ilya Sandler
# Please include the string: [perl #22181]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt2/Ticket/Display.html?id=22181 >
This is a bug report for perl from sandler@etak.com
generated with the help of perlbug 1.33 running under perl v5.6.1.
-----------------------------------------------------------------
[Please enter your report here]
The following one-liner illustrates the problem
perl -we ' for($i=0; $i< 4; $i++) { my $x=2; goto bar; bar: print $x}'
It produces:
Use of uninitialized value in print at -e line 1.
Use of uninitialized value in print at -e line 1.
Use of uninitialized value in print at -e line 1.
Use of uninitialized value in print at -e line 1.
Instead of expected "2222"
A bug? Or am I missing something?
Thanks for your attention
Ilya
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=core
severity=medium
---
Site configuration information for perl v5.6.1:
Configured by bhcompile at Mon Apr 1 12:22:19 EST 2002.
Summary of my perl5 (revision 5.0 version 6 subversion 1) configuration:
Platform:
osname=linux, osvers=2.4.17-0.13smp, archname=i386-linux
uname='linux daffy.perf.redhat.com 2.4.17-0.13smp #1 smp fri feb 1 10:30:48 est 2002 i686 unknown '
config_args='-des -Doptimize=-O2 -march=i386 -mcpu=i686 -Dcc=gcc -Dcf_by=Red Hat, Inc. -Dcccdlflags=-fPIC -Dinstallprefix=/usr -Dprefix=/usr -Darchname=i386-linux -Dvendorprefix=/usr -Dsiteprefix=/usr -Uusethreads -Uuseithreads -Uuselargefiles -Dd_dosuid -Dd_semctl_semun -Di_db -Di_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm'
hint=recommended, useposix=true, d_sigaction=define
usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
useperlio=undef d_sfio=undef uselargefiles=undef usesocks=undef
use64bitint=undef use64bitall=undef uselongdouble=undef
Compiler:
cc='gcc', ccflags ='-fno-strict-aliasing -I/usr/local/include',
optimize='-O2 -march=i386 -mcpu=i686',
cppflags='-fno-strict-aliasing -I/usr/local/include'
ccversion='', gccversion='2.96 20000731 (Red Hat Linux 7.2 2.96-109)', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=4
alignbytes=4, usemymalloc=n, prototype=define
Linker and Libraries:
ld='gcc', ldflags =' -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib
libs=-lnsl -ldl -lm -lc -lcrypt -lutil
perllibs=-lnsl -ldl -lm -lc -lcrypt -lutil
libc=/lib/libc-2.2.5.so, so=so, useshrplib=false, libperl=libperl.a
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'
Locally applied patches:
---
@INC for perl v5.6.1:
/usr/lib/perl5/5.6.1/i386-linux
/usr/lib/perl5/5.6.1
/usr/lib/perl5/site_perl/5.6.1/i386-linux
/usr/lib/perl5/site_perl/5.6.1
/usr/lib/perl5/site_perl/5.6.0
/usr/lib/perl5/site_perl
/usr/lib/perl5/vendor_perl/5.6.1/i386-linux
/usr/lib/perl5/vendor_perl/5.6.1
/usr/lib/perl5/vendor_perl
.
---
Environment for perl v5.6.1:
HOME=/home/sandler
LANG=en_US.iso885915
LANGUAGE (unset)
LC_CTYPE=iso_8859_1
LD_LIBRARY_PATH=
LOGDIR (unset)
PATH=/vol/durham/coresoft/sol/j2se/bin:/home/sandler/bin:/usr/openwin/bin:/usr/bin:/site/tools/gnu/bin:/usr/ccs/bin:/site/tools/util/bin:/usr/ucb:/bin:/usr/sccs:/usr/local/bin:/site/tools/local/bin:/site/tools/com/bin:/vol/local/bin:/usr/dt/bin:/usr/sbin:.:/home/sandler/s/hybrid/poi/bin:/home/sandler/tools:/home/sandler/s/kiwi/tools:/home/sandler/s/javamap/jtools
PERL_BADLANG=0
SHELL=/site/tools/util/bin/tcsh
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[perl #22181] goto undefines my() variables
by Ilya Sandler