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[perl #21785] The magic of while (Patch 900) never got documented
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From:
perlbug-followup
Date:
April 1, 2003 07:11
Subject:
[perl #21785] The magic of while (Patch 900) never got documented
Message ID:
rt-21785-54438.11.3961742397346@bugs6.perl.org
# New Ticket Created by kriegjcb@sunu991.rz.ruhr-uni-bochum.de
# Please include the string: [perl #21785]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt2/Ticket/Display.html?id=21785 >
This is a bug report for perl from kriegjcb@sunu991.rz.ruhr-uni-bochum.de,
generated with the help of perlbug 1.34 running under perl v5.8.0.
-----------------------------------------------------------------
[Please enter your report here]
As perlmonks and the fifth German Perl workshop found out,
"while" has some special magic in handling a few operators.
While (sic) everyone knows that
while(<>) {}
really means
while(defined($_=<>)) {}
it never got documented that patch 900
also introduced similar behaviou?r for
"readdir", "glob" and "each".
One problem is where to document it (probably under "while"),
but the old thing is documented under "readline".
Another small problem for me is how "each" can ever return something defined
but false.
Jost
[Please do not change anything below this line]
-----------------------------------------------------------------
---
Flags:
category=docs
severity=low
---
Site configuration information for perl v5.8.0:
Configured by kriegjcb at Fri Jul 19 13:58:46 MSZ 2002.
Summary of my perl5 (revision 5.0 version 8 subversion 0) configuration:
Platform:
osname=solaris, osvers=2.8, archname=sun4-solaris
uname='sunos sunu991 5.8 generic_108528-14 sun4u sparc '
config_args='-de'
hint=recommended, useposix=true, d_sigaction=define
usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=undef uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='gcc', ccflags ='-fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
optimize='-O',
cppflags='-fno-strict-aliasing -I/usr/local/include'
ccversion='', gccversion='3.0', gccosandvers='solaris2.8'
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=4321
d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='gcc', ldflags =' -L/usr/local/lib '
libpth=/usr/local/lib /usr/lib /usr/ccs/lib
libs=-lsocket -lnsl -lgdbm -ldb -ldl -lm -lc
perllibs=-lsocket -lnsl -ldl -lm -lc
libc=/lib/libc.so, so=so, useshrplib=false, libperl=libperl.a
gnulibc_version=''
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' '
cccdlflags='-fPIC', lddlflags='-G -L/usr/local/lib'
Locally applied patches:
---
@INC for perl v5.8.0:
/usr/local/perl/lib/5.8.0/sun4-solaris
/usr/local/perl/lib/5.8.0
/usr/local/perl/lib/site_perl/5.8.0/sun4-solaris
/usr/local/perl/lib/site_perl/5.8.0
/usr/local/perl/lib/site_perl/5.6.1
/usr/local/perl/lib/site_perl/5.6.0
/usr/local/perl/lib/site_perl
.
---
Environment for perl v5.8.0:
HOME=/home/kriegjcb
LANG=C
LANGUAGE (unset)
LD_LIBRARY_PATH=/usr/local/gnu/lib:/usr/local/gcc/lib:/opt/SUNWits/Graphics-sw/xil/lib:/usr/openwin/lib:/opt/SUNWits/Graphics-sw/xgl/lib:/usr/dt/lib:/usr/openwin/lib:/usr/local/lib:/usr/lib:/usr/ucblib
LOGDIR (unset)
PATH=/home/kriegjcb/bin.sun4:/usr/openwin/bin:/usr/local/net/bin:/usr/local/graphics/bin:/usr/local/perl/bin:/usr/local/gnu/bin:/usr/local/gcc/bin:/home/kriegjcb/bin/sun4/SunOS-5.8:/home/kriegjcb/bin/sun4:/home/kriegjcb/bin:/usr/local/bin:/usr/bin:/usr/sbin:/usr/lib/netsvc/yp:/usr/openwin/bin:/opt/SUNWspro/bin:/usr/dt/bin:/opt/SUNWmfwm/bin:/opt/SUNWguide/bin:/usr/ccs/bin:/usr/ucb:.:/usr/sbin
PERL_BADLANG (unset)
PERL_READLINE_NOWARN=1
SHELL=/bin/bash
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