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man attributes does not mention the lvalue attribute #1188

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p5pRT opened this issue Feb 15, 2000 · 2 comments
Closed

man attributes does not mention the lvalue attribute #1188

p5pRT opened this issue Feb 15, 2000 · 2 comments
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distro-Linux type-utilities

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@p5pRT
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p5pRT commented Feb 15, 2000

Migrated from rt.perl.org#2157 (status was 'resolved')

Searchable as RT2157$
@p5pRT
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p5pRT commented Feb 15, 2000

From dcd@tc.fluke.com

Created by dcd@tc.fluke.com

While walking through attributes.pm and trying to
figure out where the .xs code was that was being
called as bootstrap I came upon xsutils.c
and noticed that lvalue was one of the attributes,
but it is not listed in the attributes.pm man page.

lvalue is mentioned in perlsub but why isn't it
mentioned in attributes.pm or perldoc attributes?

Perl Info 


Site configuration information for perl v5.5.650:

Configured by dcd at Wed Feb  9 12:36:33 PST 2000.

Summary of my perl5 (revision 5.0 version 5 subversion 650) configuration:
  Platform:
    osname=linux, osvers=2.3.40, archname=i686-linux
    uname='linux dd 2.3.40 #1 fri jan 21 12:06:36 pst 2000 i686 '
    config_args='-Doptimize=-g -de -Dcf_email=dcd@tc.fluke.com'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef
    usesocks=undef useperlio=undef d_sfio=undef
    use64bits=undef uselargefiles=define usemultiplicity=undef
  Compiler:
    cc='cc', optimize='-g', gccversion=2.7.2.3
    cppflags='-Dbool=char -DHAS_BOOL -DDEBUGGING -I/usr/local/include'
    ccflags ='-Dbool=char -DHAS_BOOL -DDEBUGGING -I/usr/local/include'
    stdchar='char', d_stdstdio=define, 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 /shlib /lib /usr/lib
    libs=-lgdbm -ldbm -ldb -ldl -lm -lc
    libc=/lib/libc.so.5.4.44, 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 v5.5.650:
    /usr/local/lib/perl5/5.5.650/i686-linux
    /usr/local/lib/perl5/5.5.650
    /usr/local/lib/perl5/site_perl/5.5.650/i686-linux
    /usr/local/lib/perl5/site_perl/5.5.650
    /usr/local/lib/perl5/site_perl
    .


Environment for perl v5.5.650:
    HOME=/home/dcd
    LANG (unset)
    LANGUAGE (unset)
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
    PATH=/home/dcd/bin:/sbin:/usr/local/bin:/bin:/usr/bin:/usr/X11/bin:/usr/games:/usr/local/samba:/home/hobbes/tools/scripts:/home/hobbes/tools/linux:/usr0/hobbes/tools/scripts:/usr0/dcd/bin:/apps/general/bin:/usr/public
    PERL_BADLANG (unset)
    SHELL=/bin/bash

@p5pRT
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p5pRT commented Feb 16, 2000

From [Unknown Contact. See original ticket]

David Dyck (lists.p5p)​:

lvalue is mentioned in perlsub but why isn't it
mentioned in attributes.pm or perldoc attributes?

Good question.

Inline Patch 
--- attributes.pm~      Wed Feb 16 19:18:58 2000
+++ attributes.pm       Wed Feb 16 19:23:46 2000
@@ -169,6 +169,12 @@
 as described there.  It also means that a subroutine so marked
 will not trigger the "Ambiguous call resolved as CORE::%s" warning.

+=item lvalue
+
+Indicates that the referenced subroutine is a valid lvalue and can
+be assigned to. The subroutine must return a modifiable value such
+as a scalar variable, as described in L<perlsub>.
+
 =back

 There are no built-in attributes for anything other than subroutines.

--

Cats are smarter than dogs. You can't make eight cats pull a sled through
the snow.

@p5pRT p5pRT closed this as completed Nov 28, 2003
@p5pRT p5pRT mentioned this issue Oct 19, 2019
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