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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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