From 41a962dd92097089fa8d3e31d39a7b8c4af472af Mon Sep 17 00:00:00 2001
From: Glenn Morris <rgm@gnu.org>
Date: Wed, 17 Oct 2007 01:36:24 +0000
Subject: [PATCH] (cc-imenu-c++-generic-expression): Tweak regexp to avoid
 overflow.

---
 lisp/progmodes/cc-menus.el | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lisp/progmodes/cc-menus.el b/lisp/progmodes/cc-menus.el
index 95359689b9..eced014d4e 100644
--- a/lisp/progmodes/cc-menus.el
+++ b/lisp/progmodes/cc-menus.el
@@ -106,7 +106,9 @@ A sample value might look like: `\\(_P\\|_PROTO\\)'.")
     (nil
      ,(concat
        "^\\<"                                 ; line MUST start with word char
-       "[^()]*"                               ; no parentheses before
+       ;; \n added to prevent overflow in regexp matcher.
+       ;; http://lists.gnu.org/archive/html/emacs-pretest-bug/2007-02/msg00021.html
+       "[^()\n]*"                             ; no parentheses before
        "[^" c-alnum "_:<>~]"                  ; match any non-identifier char
        "\\([" c-alpha "_][" c-alnum "_:<>~]*\\)" ; match function name
        "\\([ \t\n]\\|\\\\\n\\)*("	      ; see above, BUT the arg list
-- 
2.39.2