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bug#5209: 23.1.90; CC Mode version 5.31.8 does not indent properly when

From: Steve Revilak
Subject: bug#5209: 23.1.90; CC Mode version 5.31.8 does not indent properly when writing new C files
Date: Sun, 13 Dec 2009 11:22:10 -0500
User-agent: Mutt/1.5.19 (2009-01-05)

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 address@hidden mailing list.

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':

                                * * *


(1) Start emacs with the command line "emacs -nw -Q foo.c".

    foo.c should be a new file, which does not exist prior to starting

(2) Type "#include <stdio.h>" and RETURN

(3) Type RETURN to leave a blank line

(4) type "static void add_one(int * x) {" and RETURN

(5) type "*x += 1;" and RETURN

(6) type "}" and RETURN (to close the function definition)

NOTE: the statement written in step (5) is left-aligned to column
zero.  The statement should be indented.

(7) Place point in column zero of the line "*x += 1;".  Press TAB.

    Before pressing TAB, "*x += 1;" is aligned to column zero.  After
    pressing TAB, "*x += 1;" is still aligned to column zero.  TAB did
    not indent the statement.

(8) Type "C-x h TAB" (i.e., to select and re-indent the entire

    The minibuffer displays "Indenting region... done".  However, the
    statement "*x += 1;" is still aligned to column zero.

After step 8, buffer "foo.c" looks like this:
#include <stdio.h>

static void add_one(int * x) {
*x += 1;
NOTE: the fourth line is not indented (but it should be).


In buffer "foo.c",  "M-x describe-key RET TAB" produces:
TAB runs the command c-indent-line-or-region, which is an interactive
compiled Lisp function in `cc-cmds.el'.

It is bound to TAB, <menu-bar> <C> <Indent Line or Region>.

(c-indent-line-or-region &optional ARG REGION)

Indent active region, current line, or block starting on this line.
In Transient Mark mode, when the region is active, reindent the region.
Otherwise, with a prefix argument, rigidly reindent the expression
starting on the current line.
Otherwise reindent just the current line.

NOTE: In step (8), when the entire buffer was selected, with transient
mark mode enabled, TAB did not re-indent the region correctly.

Likewise, in step (7) TAB did not re-indent the current line
("Otherwise reindent just the current line").

In buffer "foo.c",  "M-x desribe-mode" produces:
Enabled minor modes: Abbrev Auto-Composition Auto-Compression
Auto-Encryption File-Name-Shadow Font-Lock Global-Auto-Composition
Global-Font-Lock Line-Number Menu-Bar Mouse-Wheel Tool-Bar Tooltip

(Information about these minor modes follows the major mode info.)

C/l mode:
Major mode for editing K&R and ANSI C code.
To submit a problem report, enter `C-c C-b' from a
c-mode buffer.  This automatically sets up a mail buffer with version
information already added.  You just need to add a description of the
problem, including a reproducible test case, and send the message.

To see what version of CC Mode you are running, enter `M-x c-version'.

The hook `c-mode-common-hook' is run with no args at mode
initialization, then `c-mode-hook'.

  [rest of describe-mode output omitted]

M-x c-version produces the following:
Using CC Mode version 5.31.8

Finally, the same behavior occurs when emacs is started as "emacs -Q"
(i.e., if the -nw option is ommitted from the command line).

                                * * *

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

In GNU Emacs (i386-apple-darwin9.8.0, NS apple-appkit-949.54)
 of 2009-12-09 on oatmeal.ma.runwaynine.com
Windowing system distributor `Apple', version 10.3.949
configured using `configure  '--with-ns''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  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: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
ESC x r e p o r t - e m a c s - b u TAB RET

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
None found.

(shadow mail-extr message ecomplete rfc822 mml mml-sec password-cache
mm-decode mm-bodies mm-encode mailcap mail-parse rfc2231 rfc2047 rfc2045
qp ietf-drums mailabbrev nnheader gnus-util netrc time-date mm-util
mail-prsvr gmm-utils wid-edit mailheader canlock sha1 hex-util hashcash
mail-utils warnings emacsbug sendmail regexp-opt 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 text-properties
overlay md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process ns multi-tty

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