GNU bug report logs - #22378
24.5; hide-ifdef wrongly handles "#if defined X"

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: ydirson <at> free.fr
Subject: bug#22378: closed (Re: bug#22378: 24.5; hide-ifdef wrongly
 handles "#if defined X")
Date: Sat, 16 Jan 2016 07:00:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#22378: 24.5; hide-ifdef wrongly handles "#if defined X"

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 22378 <at> debbugs.gnu.org.

-- 
22378: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=22378
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Eli Zaretskii <eliz <at> gnu.org>
To: ydirson <at> free.fr
Cc: 22378-done <at> debbugs.gnu.org
Subject: Re: bug#22378: 24.5; hide-ifdef wrongly handles "#if defined X"
Date: Sat, 16 Jan 2016 08:59:42 +0200

> Date: Fri, 15 Jan 2016 22:56:58 +0100 (CET)
> From: ydirson <at> free.fr
> Cc: 22378 <at> debbugs.gnu.org
> 
> * emacs -Q foo.txt
> * M-x hide-ifdef-mode
> * C-c @ h
>   => OK, everywhere "no"
> * C-c @ d A
>   => OK, everywhere "yes" except the "B && !A"
> * C-c @ u A
>   => only "#ifdef A" switches back

Thanks.  With this recipe, I can reproduce this in Emacs 24.5, but not
with the current emacs-25 branch.  So I guess this bug was already
solved, and I'm marking the bug done.

[Message part 3 (message/rfc822, inline)]

From: ydirson <at> free.fr
To: bug-gnu-emacs <at> gnu.org
Subject: 24.5; hide-ifdef wrongly handles "#if defined X"
Date: Fri, 15 Jan 2016 09:55:01 +0100 (CET)

With the following text in buffer, with "hide some ifdefs" activated,
when I define/undef A (and whether B is defined or not) the first block
properly switches between "yes" and "no", whereas all ther others
consistently stay at "yes"

---->8----
#ifdef A
yes
#else
no
#endif

#if defined A
yes
#else
no
#endif

#if defined(A)
yes
#else
no
#endif

#if !defined(A)
no
#else
yes
#endif

#if defined B && !defined A
no
#else
yes
#endif
---->8----

In GNU Emacs 24.5.1 (x86_64-pc-linux-gnu, GTK+ Version 3.18.2)
 of 2015-10-24 on trouble, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11703000
System Description:	Debian GNU/Linux testing (stretch)

Configured using:
 `configure --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/lib
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-pop=yes
 --enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.5/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.5/site-lisp:/usr/share/emacs/site-lisp
 --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib
 --libexecdir=/usr/lib --localstatedir=/var/lib
 --infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes
 --enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.5/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.5/site-lisp:/usr/share/emacs/site-lisp
 --with-x=yes --with-x-toolkit=gtk3 --with-toolkit-scroll-bars
 'CFLAGS=-g -O2 -fstack-protector-strong -Wformat
 -Werror=format-security -Wall' CPPFLAGS=-D_FORTIFY_SOURCE=2
 LDFLAGS=-Wl,-z,relro'

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: C/l

Minor modes in effect:
  hide-ifdef-mode: t
  diff-auto-refine-mode: t
  show-paren-mode: t
  tooltip-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Recent messages:
Hiding done
Hiding...
Hiding done
Hiding...
Hiding done
Auto-saving...
Hiding...
Hiding done
Hiding...
Hiding done

Load-path shadows:
/usr/share/emacs/24.5/site-lisp/debian-startup hides /usr/share/emacs/site-lisp/debian-startup
/usr/share/emacs24/site-lisp/flim/hex-util hides /usr/share/emacs/24.5/lisp/hex-util
/usr/share/emacs24/site-lisp/flim/md4 hides /usr/share/emacs/24.5/lisp/md4
/usr/share/emacs24/site-lisp/flim/sasl hides /usr/share/emacs/24.5/lisp/net/sasl
/usr/share/emacs24/site-lisp/flim/hmac-def hides /usr/share/emacs/24.5/lisp/net/hmac-def
/usr/share/emacs24/site-lisp/flim/sasl-digest hides /usr/share/emacs/24.5/lisp/net/sasl-digest
/usr/share/emacs24/site-lisp/flim/sasl-cram hides /usr/share/emacs/24.5/lisp/net/sasl-cram
/usr/share/emacs24/site-lisp/flim/ntlm hides /usr/share/emacs/24.5/lisp/net/ntlm
/usr/share/emacs24/site-lisp/flim/sasl-ntlm hides /usr/share/emacs/24.5/lisp/net/sasl-ntlm
/usr/share/emacs24/site-lisp/flim/hmac-md5 hides /usr/share/emacs/24.5/lisp/net/hmac-md5

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-utils hideif conf-mode two-column vc vc-dispatcher smerge-mode
diff-mode easy-mmode help-fns mail-prsvr password-cache url-vars
mule-util etags ring help-mode make-mode dabbrev misearch multi-isearch
vc-git cc-langs cl-loaddefs cl-lib cc-mode cc-fonts easymenu cc-guess
cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs rect
sh-script smie executable paren cus-start cus-load server debian-el
debian-el-loaddefs dpkg-dev-el dpkg-dev-el-loaddefs time-date tooltip
electric uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd
tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment
lisp-mode prog-mode register page menu-bar rfn-eshadow timer select
scroll-bar 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 minibuffer nadvice loaddefs button faces cus-face macroexp files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote make-network-process
dbusbind gfilenotify dynamic-setting system-font-setting
font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs)

Memory information:
((conses 16 276436 32948)
 (symbols 48 24493 0)
 (miscs 40 766 3904)
 (strings 32 30487 9317)
 (string-bytes 1 902469)
 (vectors 16 21073)
 (vector-slots 8 1225676 187424)
 (floats 8 89 880)
 (intervals 56 21262 254)
 (buffers 960 57)
 (heap 1024 63382 3299))

-- 
Yann

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