[ID 20000127.003] File-scope 'my' array is non-empty, but debugger says it's empty

[Rich Miller <rmiller@rmiller1.idx.com>]

This is a bug report for perl from rmiller@idx.com,
generated with the help of perlbug 1.26 running under perl 5.00503.


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[Please enter your report here]

The following two-line file illustrates the problem:

    my @res = ("A\n");
    print @res;

Running this with "perl -w" or "perl -w -d" produces the expected output
(a line containing the single letter 'A').  But in the perl debugger,
the command
	x @res
given after the first line executes, but before the second start,
erroneously reports
    empty array

[Please do not change anything below this line]
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Site configuration information for perl 5.00503:

Configured by root at Mon Aug 30 23:08:56 EDT 1999.

Summary of my perl5 (5.0 patchlevel 5 subversion 3) configuration:
  Platform:
    osname=linux, osvers=2.2.5-22smp, archname=i386-linux
    uname='linux porky.devel.redhat.com 2.2.5-22smp #1 smp wed jun 2 09:11:51 edt 1999 i686 unknown '
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef useperlio=undef d_sfio=undef
  Compiler:
    cc='cc', optimize='-O2', gccversion=egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)
    cppflags='-Dbool=char -DHAS_BOOL -I/usr/local/include'
    ccflags ='-Dbool=char -DHAS_BOOL -I/usr/local/include'
    stdchar='char', d_stdstdio=undef, usevfork=false
    intsize=4, longsize=4, ptrsize=4, doublesize=8
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    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 -lposix -lcrypt
    libc=, 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:
    

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@INC for perl 5.00503:
    /usr/local/bin/perl
    /home/rmiller/rel/pmake
    /usr/lib/perl5/5.00503/i386-linux
    /usr/lib/perl5/5.00503
    /usr/lib/perl5/site_perl/5.005/i386-linux
    /usr/lib/perl5/site_perl/5.005
    .

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Environment for perl 5.00503:
    HOME=/home/rmiller
    LANG=en_US
    LANGUAGE (unset)
    LC_ALL=en_US
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:/home/rmiller/bin:.
    PERL5LIB=/usr/local/bin/perl:/home/rmiller/rel/pmake
    PERL_BADLANG (unset)
    SHELL=/bin/bash

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Follow-Ups from:

Ilya Zakharevich <ilya@math.ohio-state.edu>

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