[ID 20010903.005] (if|unless) ( local ... ) not undone

This is a bug report for perl from bwarnock@capita.com,
generated with the help of perlbug 1.33 running under perl v5.6.1.


-----------------------------------------------------------------
Local variables declared in a conditional expression of a
conditional block are not restored at the end of scope.

$a = 10;
if (local $a = 1){
}
print $a; # Should be 10, not 1

Applies to local variables declared in 'if (expr)', 'unless(expr)',
and 'elsif (expr)'.  Lexical variables are okay, as are local
variables in the conditional expression of a loop block.

Occurs in 5.005_03 through 5.7.2.
-----------------------------------------------------------------
---
Flags:
    category=core
    severity=low
---
Site configuration information for perl v5.6.1:

Configured by bryan at Sat Jun  9 11:24:22 EDT 2001.

Summary of my perl5 (revision 5.0 version 6 subversion 1) configuration:
  Platform:
    osname=linux, osvers=2.4.3-20mdk, archname=i686-linux-64all-ld
    uname='linux wakko.idiocity.nut 2.4.3-20mdk #1 sun apr 15 23:03:10 cest
2001 i686 unknown '
    config_args=''
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef
usemultiplicity=undef
    useperlio=undef d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=define use64bitall=define uselongdouble=define
  Compiler:
    cc='gcc', ccflags ='-DDEBUGGING -fno-strict-aliasing -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64',
    optimize='-g',
    cppflags='-DDEBUGGING -fno-strict-aliasing'
    ccversion='', gccversion='2.96 20000731 (Linux-Mandrake 8.0
2.96-0.48mdk)', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=12345678
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long long', ivsize=8, nvtype='long double', nvsize=12,
Off_t='off_t', lseeksize=8
    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 -ldb -ldl -lm -lc -lcrypt -lutil
    perllibs=-lnsl -ldl -lm -lc -lcrypt -lutil
    libc=/lib/libc-2.2.2.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/local/lib/perl5/5.6.1/i686-linux-64all-ld
    /usr/local/lib/perl5/5.6.1
    /usr/local/lib/perl5/site_perl/5.6.1/i686-linux-64all-ld
    /usr/local/lib/perl5/site_perl/5.6.1
    /usr/local/lib/perl5/site_perl
    .

---
Environment for perl v5.6.1:
    HOME=/home/bryan
    LANG=en
    LANGUAGE=en_US:en
    LC_COLLATE=en_US
    LC_CTYPE=en_US
    LC_MESSAGES=en_US
    LC_MONETARY=en_US
    LC_NUMERIC=en_US
    LC_TIME=en_US
    LD_LIBRARY_PATH=/usr/lib
    LOGDIR (unset)

PATH=.:/home/bryan/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:/sbin:/us
r/sbin PERL_BADLANG (unset)
    SHELL=/bin/tcsh


• [ID 20010903.005] (if|unless) ( local ... ) not undone by Bryan C . Warnock