[perl #75596] Iterator not reset on array assignment

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# Please include the string:  [perl #75596]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=75596 >


This is a bug report for perl from [email protected],
generated with the help of perlbug 1.39 running under perl 5.10.1.


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[Please describe your issue here]

Perl doesn't reset the array iterator when the array is cleared :

    $ perl5.12.1-64 -M5.012 -E 'my @a = "a" .. "c"; my ($i, $v) = each @a; say "$i: $v"; @a = "A" .. "C"; ($i, $v) = each @a; say "$i: $v"'
    0: a
    1: B

The issue is still present in 5.13.1.

Vincent.

[Please do not change anything below this line]
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---
Flags:
    category=core
    severity=medium
---
Site configuration information for perl 5.10.1:

Configured by Gentoo at Sat Feb 13 19:44:25 CET 2010.

Summary of my perl5 (revision 5 version 10 subversion 1) configuration:
   
  Platform:
    osname=linux, osvers=2.6.32.7-fuuka.profvince.com, archname=x86_64-linux
    uname='linux fuuka 2.6.32.7-fuuka.profvince.com #1 smp sat jan 30 18:37:12 cet 2010 x86_64 intel(r) core(tm)2 duo cpu e6750 @ 2.66ghz genuineintel gnulinux '
    config_args='-des -Duseshrplib -Darchname=x86_64-linux -Dcc=x86_64-pc-linux-gnu-gcc -Doptimize=-march=core2 -O3 -fomit-frame-pointer -ftree-vectorize -ftree-vectorizer-verbose=1 -pipe -DNDEBUG -Dscriptdir=/usr/bin -Dprefix=/usr -Dvendorprefix=/usr -Dsiteprefix=/usr -Dprivlib=/usr/lib64/perl5/5.10.1 -Darchlib=/usr/lib64/perl5/5.10.1/x86_64-linux -Dvendorlib=/usr/lib64/perl5/vendor_perl/5.10.1 -Dvendorarch=/usr/lib64/perl5/vendor_perl/5.10.1/x86_64-linux -Dsitelib=/usr/lib64/perl5/site_perl/5.10.1 -Dsitearch=/usr/lib64/perl5/site_perl/5.10.1/x86_64-linux -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dinstallman1dir=/usr/share/man/man1 -Dinstallman3dir=/usr/share/man/man3 -Dman1ext=1 -Dman3ext=3pm -Dlibperl=libperl.so.5.10.1 -Dlocincpth=  -Duselargefiles -Dd_semctl_semun -Dinc_version_list=5.10.0 5.10.0/x86_64-linux -Dcf_by=Gentoo -Dmyhostname=localhost -Dperladmin=root@localhost -Dinstallusrbinperl=n -Ud_csh -Uusenm -Di_ndbm -Di_gdbm -Di_db -Dusrinc=/usr/incl
 ude -Dlibpth=/usr/local/lib64 /lib64 /usr/lib64'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=undef, usemultiplicity=undef
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef
    use64bitint=define, use64bitall=define, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='x86_64-pc-linux-gnu-gcc', ccflags ='-fno-strict-aliasing -pipe -fstack-protector -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-march=core2 -O3 -fomit-frame-pointer -ftree-vectorize -ftree-vectorizer-verbose=1 -pipe -DNDEBUG',
    cppflags='-fno-strict-aliasing -pipe -fstack-protector'
    ccversion='', gccversion='4.4.3', 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='x86_64-pc-linux-gnu-gcc', ldflags =' -fstack-protector'
    libpth=/usr/local/lib64 /lib64 /usr/lib64
    libs=-lpthread -lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lc -lgdbm_compat
    perllibs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc
    libc=/lib/libc-2.11.so, so=so, useshrplib=true, libperl=libperl.so.5.10.1
    gnulibc_version='2.11'
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E'
    cccdlflags='-fPIC', lddlflags='-shared -march=core2 -O3 -fomit-frame-pointer -ftree-vectorize -ftree-vectorizer-verbose=1 -pipe -DNDEBUG -fstack-protector'

Locally applied patches:
    

---
@INC for perl 5.10.1:
    /usr/lib64/perl5/site_perl/5.10.1/x86_64-linux
    /usr/lib64/perl5/site_perl/5.10.1
    /usr/lib64/perl5/site_perl
    /usr/lib64/perl5/vendor_perl/5.10.1/x86_64-linux
    /usr/lib64/perl5/vendor_perl/5.10.1
    /usr/lib64/perl5/vendor_perl
    /usr/lib64/perl5/5.10.1/x86_64-linux
    /usr/lib64/perl5/5.10.1
    .

---
Environment for perl 5.10.1:
    HOME=/home/vince
    LANG=fr_FR.UTF-8
    LANGUAGE (unset)
    LC_ALL=fr_FR.UTF-8
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/home/vince/bin:/home/vince/perl/builds/bin:/usr/local/bin:/usr/bin:/bin:/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/4.4.3:/opt/intel/cce/10.1.018/bin:/usr/games/bin
    PERL_BADLANG (unset)
    SHELL=/bin/bash