[ID 20000407.003] print\@foo=~/^ARRAY/?"yes\n":"no\n"changes behaviour in 5.6.0

This is a bug report for perl from stephen.mulcahy@compaq.com,
generated with the help of perlbug 1.28 running under perl v5.6.0.


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[Please enter your report here]

The following codes behaviour has changed moving to 5.6.0. 
While accepting that ref is the correct way to do this, is
this change intentional or accidental?

$ perl5.6.0 -e 'print \@foo=~/^ARRAY/?"yes\n":"no\n"'
no
$ perl5.00503 -e 'print \@foo=~/^ARRAY/?"yes\n":"no\n"'
yes

Note that the following both produce the same output

$ perl5.6.0 -e 'print \@foo . "\n"'
$ perl5.00503 -e 'print \@foo . "\n"'

ARRAY(....)



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

Configured by smulcahy at Thu Mar 30 11:51:10 BST 2000.

Summary of my perl5 (revision 5.0 version 6 subversion 0) configuration:
  Platform:
    osname=dec_osf, osvers=4.0, archname=alpha-dec_osf
    uname='osf1 fuse.ilo.dec.com v4.0 1091 alpha '
    config_args=''
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
    useperlio=undef d_sfio=undef uselargefiles=define 
    use64bitint=define use64bitall=define uselongdouble=define usesocks=undef
  Compiler:
    cc='cc', optimize='-O4', gccversion=
    cppflags='-std -ieee -D_INTRINSICS -I/usr/local/include -DLANGUAGE_C'
    ccflags ='-std -fprm d -ieee -D_INTRINSICS -I/usr/local/include -DLANGUAGE_C'
    stdchar='unsigned char', d_stdstdio=define, usevfork=false
    intsize=4, longsize=8, ptrsize=8, doublesize=8
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=8
    ivtype='long', ivsize=8, nvtype='long double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=8, usemymalloc=n, prototype=define
  Linker and Libraries:
    ld='ld', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /var/shlib
    libs=-ldbm -ldb -lm -liconv
    libc=/usr/shlib/libc.so, so=so, useshrplib=true, libperl=libperl.so
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='  -Wl,-rpath,/usr/local/lib/perl5/5.6.0/alpha-dec_osf/CORE'
    cccdlflags=' ', lddlflags='-shared -expect_unresolved "*" -O4 -msym -std -s -L/usr/local/lib'

Locally applied patches:
    

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@INC for perl v5.6.0:
    /usr/local/lib/perl5/5.6.0/alpha-dec_osf
    /usr/local/lib/perl5/5.6.0
    /usr/local/lib/perl5/site_perl/5.6.0/alpha-dec_osf
    /usr/local/lib/perl5/site_perl/5.6.0
    /usr/local/lib/perl5/site_perl/5.005/alpha-dec_osf
    /usr/local/lib/perl5/site_perl/5.005
    /usr/local/lib/perl5/site_perl
    .

---
Environment for perl v5.6.0:
    HOME=/usr/users/smulcahy
    LANG (unset)
    LANGUAGE (unset)
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/usr/users/smulcahy/ftp/vrweb/bin/scripts:/usr/local/bin:/usr/dt/bin:/usr/bin/X11:/usr/X11R6/bin:/usr/local/netpbm:/usr/users/jquinn/povray3/include:/usr/users/jquinn/java:/bin:/usr/local/bin:/usr/ucb:/usr/bin:/usr/etc:/etc:/usr/games:/usr/bin/mh:/sbin:/usr/sbin:/usr/users/smulcahy/bin:/usr/users/smulcahy/bin/alpha-OSF1:/disk01/app/oracle/product/7.3.4/bin:/usr/local/enlightenment/bin
    PERL_BADLANG (unset)
    SHELL=/bin/bash

• [ID 20000407.003] print\@foo=~/^ARRAY/?"yes\n":"no\n"changes behaviour in 5.6.0 by Stephen Mulcahy
• Re: [ID 20000407.003] print \@foo=~/^ARRAY/?"yes\n":"no\n" changes by Ilya Zakharevich