* bug#8012: 23.2; set-difference broken
@ 2011-02-10 4:07 Dave Abrahams
2011-02-10 4:58 ` Glenn Morris
0 siblings, 1 reply; 4+ messages in thread
From: Dave Abrahams @ 2011-02-10 4:07 UTC (permalink / raw)
To: 8012
This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.
Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
and to the gnu.emacs.bug news group.
Please describe exactly what actions triggered the bug
and the precise symptoms of the bug. If you can, give
a recipe starting from `emacs -Q':
(set-difference '(a b (c)) '(a b (c)))
Result:
'((c))
Expected result:
nil
If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
`bt full' and `xbacktrace'.
For information about debugging Emacs, please read the file
/Applications/Emacs.app/Contents/Resources/etc/DEBUG.
In GNU Emacs 23.2.1 (x86_64-apple-darwin, NS apple-appkit-1038.29)
of 2010-05-08 on black.local
Windowing system distributor `Apple', version 10.3.1038
configured using `configure '--host=x86_64-apple-darwin' '--build=i686-apple-darwin' '--with-ns' 'build_alias=i686-apple-darwin' 'host_alias=x86_64-apple-darwin' 'CC=gcc -mmacosx-version-min=10.5''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: nil
value of $XMODIFIERS: nil
locale-coding-system: nil
default enable-multibyte-characters: t
Major mode: Folder
Minor modes in effect:
hl-line-mode: t
diff-auto-refine-mode: t
shell-dirtrack-mode: t
recentf-mode: t
global-auto-complete-mode: t
yas/global-mode: t
show-paren-mode: t
server-mode: t
global-auto-revert-mode: t
delete-selection-mode: t
tooltip-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n M-< C-n n n n n n n n n n n n n n n n n n n n n
n n n n n n n n n n n n n n p n <tab> n n n n n p p
p p n p p k y e s <return> M-! M-p C-g C-x C-f e l
0 <backspace> - <tab> <C-backspace> <C-backspace> e
l <tab> <C-backspace> . <C-backspace> <C-backspace>
D r <tab> h o <tab> . e <tab> m a <tab> e l - g e <tab>
i n i <tab> <return> C-n C-n C-p B y C-x C-n C-n C-n
C-n C-n C-n C-n C-n C-n C-p <return> C-, C-, C-, C-,
C-n C-n C-n C-e C-n C-n C-b C-f C-d C-d C-x C-s C-x
C-b C-p B y M-! M-p <return> M-x g n u s - b u g f
<backspace> <tab> <return> C-p C-p C-p C-n C-n C-n
M-x w l <return> M-x M-p M-p <return> M-x M-p C-SPC
C-. C-e e m a g <backspace> c e - b <backspace> <backspace>
<backspace> s - b u <tab> C-a r e p <tab> <return>
Recent messages:
gnus-mime-setup is not found.
emh-setup is not found.
Updating addresses...done
Checking environment...
Loading msgdb for +draft...done
Checking environment...done
Checking type of variables...done
Initializing folder...done
Inserting group Messages...done
gnus-bug: Gnus has been shut down
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/Users/dave/.emacs.d/3rd-party/package.d/flim/lisp/flim/sasl-digest hides /Applications/Emacs.app/Contents/Resources/lisp/net/sasl-digest
/Users/dave/.emacs.d/3rd-party/package.d/flim/lisp/flim/sasl-cram hides /Applications/Emacs.app/Contents/Resources/lisp/net/sasl-cram
/Users/dave/.emacs.d/3rd-party/package.d/flim/lisp/flim/ntlm hides /Applications/Emacs.app/Contents/Resources/lisp/net/ntlm
/Users/dave/.emacs.d/3rd-party/package.d/flim/lisp/flim/hmac-md5 hides /Applications/Emacs.app/Contents/Resources/lisp/net/hmac-md5
/Users/dave/.emacs.d/3rd-party/package.d/flim/lisp/flim/hmac-def hides /Applications/Emacs.app/Contents/Resources/lisp/net/hmac-def
/Users/dave/.emacs.d/3rd-party/package.d/wanderlust/lisp/wl/rfc2368 hides /Applications/Emacs.app/Contents/Resources/lisp/mail/rfc2368
/Users/dave/.emacs.d/3rd-party/package.d/wanderlust/lisp/wl/utf7 hides /Applications/Emacs.app/Contents/Resources/lisp/gnus/utf7
/Users/dave/.emacs.d/3rd-party/package.d/semi/lisp/semi/smime hides /Applications/Emacs.app/Contents/Resources/lisp/gnus/smime
/Users/dave/.emacs.d/3rd-party/package.d/planner/contrib/timeclock hides /Applications/Emacs.app/Contents/Resources/lisp/calendar/timeclock
Features:
(shadow emacsbug elmo-nntp elmo-sendlog elmo-internal elmo-imap4
time-stamp elmo-net elmo-dop elmo-cache elmo-map hl-line modb-standard
wl-mime mime-edit pgg-parse pccl pccl-20 ccl mailalias mime-setup
mail-mime-setup semi-setup mime-pgp pgg-def mime-play filename
mime-image wl-demo wl-draft eword-encode wl-template sendmail wl-news
derived wl-address wl-thread wl-folder wl-spam wl-action elmo-spam
elsp-header elsp-generic wl-gravatar gravatar url-cache url url-proxy
url-privacy url-expand url-methods url-history url-cookie url-util
url-parse url-vars bbdb signature org-wl org ob-emacs-lisp ob-tangle
ob-ref ob-lob ob-table org-footnote org-src ob-comint ob-keys ob
ob-eval org-complete pcomplete org-list org-faces org-compat
org-entities org-macs noutline outline cal-menu calendar cal-loaddefs
filladapt wl-summary ps-print ps-def lpr wl-refile wl-message
elmo-mime mmelmo-buffer mmelmo-imap mime-view calist semi-def mmimap
mime-parse mmbuffer mmgeneric wl-highlight elmo-multi mime-conf wl
wl-e21 wl-util pp elmo-flag elmo-localdir wl-vars wl-version elmo
elmo-signal elmo-msgdb modb modb-generic modb-entity mime elmo-util
emu invisible inv-23 poem poem-e20 poem-e20_3 utf7 eword-decode std11
elmo-date timezone elmo-vars elmo-version luna gnus-msg gnus-art mm-uu
mml2015 epg-config mm-view smime mel mime-def alist mcharset mcs-20
mcs-e20 pces pces-e20 pces-20 broken pcustom path-util poe pym static
apel-ver product gnus-sum nnoo gnus-group gnus-undo nnmail mail-source
gnus-start gnus-spec gnus-int gnus-range gnus-win message ecomplete
rfc822 mml mml-sec mm-decode mm-bodies mm-encode mailcap mail-parse
rfc2231 rfc2047 rfc2045 qp ietf-drums mailabbrev gmm-utils mailheader
canlock sha1 sha1-el hex-util hashcash vc-git byte-opt warnings
bytecomp byte-compile dired-aux magit-svn magit diff-mode log-edit
easy-mmode pcvs-util add-log magit-key-mode dired multi-isearch
my-xmlunicode quail info package reporter init w3m-load
remember-autoloads planner-autoloads muse-autoloads
color-theme-autoloads bbdb-autoloads my-loaddefs compile tramp-gw
tramp-fish tramp-smb tramp-cache tramp-ftp tramp-cmds tramp regexp-opt
auth-source shell comint ring password-cache format-spec tramp-compat
trampver recentf tree-widget auto-complete-config auto-complete popup
ido maxframe osx-plist xml windmove ffap dwa-util initsplit find-func
yasnippet advice advice-preload edmacro kmacro help-mode view assoc cl
cl-19 paren server gnus gnus-ems nnheader gnus-util netrc time-date
mail-utils mm-util mail-prsvr wid-edit autorevert delsel cus-start
cus-load autoload help-fns org-install tooltip ediff-hook vc-hooks
lisp-float-type mwheel ns-win easymenu tool-bar dnd fontset image
fringe lisp-mode register page menu-bar rfn-eshadow timer select
scroll-bar mldrag mouse jit-lock font-lock syntax facemenu font-core
frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai
tai-viet lao korean japanese hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese case-table epa-hook
jka-cmpr-hook help simple abbrev loaddefs button minibuffer faces
cus-face files text-properties overlay md5 base64 format env
code-pages mule custom widget hashtable-print-readable backquote
make-network-process ns multi-tty emacs)
--
Dave Abrahams
BoostPro Computing
http://www.boostpro.com
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#8012: 23.2; set-difference broken
2011-02-10 4:07 bug#8012: 23.2; set-difference broken Dave Abrahams
@ 2011-02-10 4:58 ` Glenn Morris
2011-02-10 11:30 ` Dave Abrahams
0 siblings, 1 reply; 4+ messages in thread
From: Glenn Morris @ 2011-02-10 4:58 UTC (permalink / raw)
To: Dave Abrahams; +Cc: 8012
Dave Abrahams wrote:
> (set-difference '(a b (c)) '(a b (c)))
>
> Result:
>
> '((c))
>
> Expected result:
>
> nil
Maybe you want to use
(set-difference '(a b (c)) '(a b (c)) :test 'equal) ?
since
(eq '(c) '(c)) ; -> nil
(equal '(c) '(c)) ; -> t
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#8012: 23.2; set-difference broken
2011-02-10 4:58 ` Glenn Morris
@ 2011-02-10 11:30 ` Dave Abrahams
2011-07-14 17:49 ` Lars Magne Ingebrigtsen
0 siblings, 1 reply; 4+ messages in thread
From: Dave Abrahams @ 2011-02-10 11:30 UTC (permalink / raw)
To: Glenn Morris; +Cc: 8012
At Wed, 09 Feb 2011 23:58:15 -0500,
Glenn Morris wrote:
>
> Dave Abrahams wrote:
>
> > (set-difference '(a b (c)) '(a b (c)))
> >
> > Result:
> >
> > '((c))
> >
> > Expected result:
> >
> > nil
>
> Maybe you want to use
>
> (set-difference '(a b (c)) '(a b (c)) :test 'equal) ?
>
> since
>
> (eq '(c) '(c)) ; -> nil
> (equal '(c) '(c)) ; -> t
Okay, thanks! But, where is it documented that set-difference is
going to use eq? Oh, I see it in the info.
Rather a shame that the docstrings for the cl set functions don't
mention this; it would have saved me embarrassing myself and both of
us from spending time on this.
Cheers,
--
Dave Abrahams
BoostPro Computing
http://www.boostpro.com
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#8012: 23.2; set-difference broken
2011-02-10 11:30 ` Dave Abrahams
@ 2011-07-14 17:49 ` Lars Magne Ingebrigtsen
0 siblings, 0 replies; 4+ messages in thread
From: Lars Magne Ingebrigtsen @ 2011-07-14 17:49 UTC (permalink / raw)
To: Dave Abrahams; +Cc: 8012
Dave Abrahams <dave@boostpro.com> writes:
> Rather a shame that the docstrings for the cl set functions don't
> mention this; it would have saved me embarrassing myself and both of
> us from spending time on this.
Replicating the entire Common Lisp The Hyperspec in the doc strings of
the cl.el functions would be an interesting project, but I'm closing
this report, as this doesn't seem to be a bug.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog http://lars.ingebrigtsen.no/
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-07-14 17:49 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-02-10 4:07 bug#8012: 23.2; set-difference broken Dave Abrahams
2011-02-10 4:58 ` Glenn Morris
2011-02-10 11:30 ` Dave Abrahams
2011-07-14 17:49 ` Lars Magne Ingebrigtsen
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