Fix bug #33416, where typing a ) in a comment at EOB caused a loop (CC Mode).

* lisp/progmodes/cc-mode.el (c-fl-decl-start): A c-forward-syntactic-ws leaves
point inside whitespace when moving over a comment at EOB which has no
terminating LF.  Check this possibility and correct for it.

1 files changed, 4 insertions, 1 deletions

diff --git a/lisp/progmodes/cc-mode.el b/lisp/progmodes/cc-mode.el
index 664f01012b8..424cde52474 100644
--- a/lisp/progmodes/cc-mode.el
+++ b/lisp/progmodes/cc-mode.el
@@ -1512,7 +1512,10 @@ Note that this is a strict tail, so won't match, e.g. \"0x....\".")
          (c-syntactic-skip-backward "^;{}" bod-lim t)
          (> (point) bod-lim)
          (progn (c-forward-syntactic-ws)
-                (setq bo-decl (point))
+                ;; Have we got stuck in a comment at EOB?
+                (not (and (eobp)
+                          (c-literal-start))))
+         (progn (setq bo-decl (point))
                 (or (not (looking-at c-protection-key))
                     (c-forward-keyword-clause 1)))
          (progn