[ID 20010309.004] my-variables lose values while goto'ing withina for(;;)-loop

This is a bug report for perl from ts@snafu.de,
generated with the help of perlbug 1.28 running under perl v5.6.0.


-----------------------------------------------------------------
[Please enter your report here]


Dear maintainers, 

the following program behaves unexpected:

#--------------------------------------------------
#!/usr/bin/perl

for ($i=1; $i<=1; $i++) {
    my $var='val';
    print "before \$var='$var'\n";
    goto Jump; 
    Jump:
    print  "after \$var='$var'\n";
}
#--------------------------------------------------

The output is:

#--------------------------------------------------
before $var='val'
after $var=''
#--------------------------------------------------

It seems, all ingredients (C-style for, my-variable, goto) are crucial;
e.g. a for(1)-loop behaves as expected.

I think it would be a good idea to correct this glitch in an otherwise
excellent language.

Sincerely,
Thomas Schmitt



[Please do not change anything below this line]
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---
Flags:
    category=core
    severity=medium
---
Site configuration information for perl v5.6.0:

Configured by bod at Tue Feb 27 03:27:16 EST 2001.

Summary of my perl5 (revision 5.0 version 6 subversion 0) configuration:
  Platform:
    osname=linux, osvers=2.2.18, archname=i386-linux
    uname='linux duende 2.2.18 #1 thu dec 28 14:51:40 est 2000 i686 unknown '
    config_args='-Dccflags=-DDEBIAN -Darchname=i386-linux -Dprefix=/usr -Dprivlib=/usr/share/perl/5.6.0 -Darchlib=/usr/lib/perl/5.6.0 -Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 -Dvendorarch=/usr/lib/perl5 -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl/5.6.0 -Dsitearch=/usr/local/lib/perl/5.6.0 -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dman1ext=1 -Dman3ext=3 -Dpager=/usr/bin/pager -Uafs -Ud_csh -Uusesfio -Duseshrplib -Dlibperl=libperl.so.5.6.0 -Dd_dosuid -des'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
    useperlio=undef d_sfio=undef uselargefiles=define 
    use64bitint=undef use64bitall=undef uselongdouble=undef usesocks=undef
  Compiler:
    cc='cc', optimize='-O2', gccversion=2.95.3 20010219 (prerelease)
    cppflags='-DDEBIAN -fno-strict-aliasing -I/usr/local/include'
    ccflags ='-DDEBIAN -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'
    stdchar='char', d_stdstdio=define, usevfork=false
    intsize=4, longsize=4, ptrsize=4, doublesize=8
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=4, usemymalloc=n, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lnsl -ldl -lm -lc -lcrypt
    libc=/lib/libc-2.2.2.so, so=so, useshrplib=true, libperl=libperl.so.5.6.0
  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 v5.6.0:
    /usr/local/lib/perl/5.6.0
    /usr/local/share/perl/5.6.0
    /usr/lib/perl5
    /usr/share/perl5
    /usr/lib/perl/5.6.0
    /usr/share/perl/5.6.0
    /usr/lib/perl5/5.6/i386-linux
    /usr/lib/perl5/5.6
    /usr/lib/perl5/5.005/i386-linux
    .

---
Environment for perl v5.6.0:
    HOME=/home/ts
    LANG=de_DE
    LANGUAGE (unset)
    LD_LIBRARY_PATH=/usr/lib
    LOGDIR (unset)
    PATH=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/usr/local/mybin:/opt/kde/bin:/home/ts/bin
    PERL_BADLANG (unset)
    SHELL=/bin/bash

• [ID 20010309.004] my-variables lose values while goto'ing withina for(;;)-loop by ts