GNU bug report logs - #10480
24.0.92; cc-mode breakage due to "Large brace-block initialisation makes CC Mode slow: Fix"

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Alex <alex <at> bennee.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.92;
	cc-mode breakage due to "Large brace-block initialisation makes CC
	Mode slow: Fix"
Date: Wed, 11 Jan 2012 16:37:51 +0100

I'm currently tracking the Emacs BZR/GIT repo for the current bleeding
edge code. It seems it broke over Christmas. While editing C code I was
constantly hit with back traces like the following:

Debugger entered--Lisp error: (args-out-of-range 10389 15607)
  parse-partial-sexp(10389 15607)
  c-literal-limits(nil nil t)
  c-indent-new-comment-line(t)
  default-indent-new-line(t)
  do-auto-fill()
  apply(do-auto-fill nil)
  c-mask-paragraph(nil t do-auto-fill)
  c-do-auto-fill()
  self-insert-command(1)
  newline()
  newline-and-indent()
  call-interactively(newline-and-indent nil nil)

This often left emacs unusable, sometime wiping the current editing
buffer. Bisecting through the code tree I found it was the Large
brace-block fix that causes the regression. I'm afraid I can't provide
the code it broke on but was occurring all over the place so I don't
think it was anything special.

Regards,

Alex

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