master 639adf26a1: CC Mode: Fix the "asymmetry rule" for fontifying a type followed by *

[Alan Mackenzie]

branch: master
commit 639adf26a1b43445eaf52e4246cf1f5b46b5e12d
Author: Alan Mackenzie <acm@muc.de>
Commit: Alan Mackenzie <acm@muc.de>

    CC Mode: Fix the "asymmetry rule" for fontifying a type followed by *
    
    This fixes bug #59427.  We now handle correctly the case when a parenthesis
    follows the * which is ambiguously a multiplication or indirection operator.
    Also, we don't recognise a type thus found as a found type - the evidence is
    too weak.
    
    * lisp/progmodes/cc-engine.el (c-forward-decl-or-cast-1): Fix CASE 17.5 as
    above.
---
 lisp/progmodes/cc-engine.el | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lisp/progmodes/cc-engine.el b/lisp/progmodes/cc-engine.el
index 9e09e5150d..11ddb39ed9 100644
--- a/lisp/progmodes/cc-engine.el
+++ b/lisp/progmodes/cc-engine.el
@@ -11077,8 +11077,9 @@ This function might do hidden buffer changes."
                              at-decl-start))
                 (let ((space-before-id
                        (save-excursion
-                         (goto-char name-start)
-                         (or (bolp) (memq (char-before) '(?\  ?\t)))))
+                         (goto-char id-start) ; Position of "*".
+                         (and (> (skip-chars-forward "* \t\n\r") 0)
+                              (memq (char-before) '(?\  ?\t ?\n ?\r)))))
                       (space-after-type
                        (save-excursion
                          (goto-char type-start)
@@ -11088,6 +11089,8 @@ This function might do hidden buffer changes."
                                   (memq (char-after) '(?\  ?\t)))))))
                   (when (not (eq (not space-before-id)
                                  (not space-after-type)))
+                    (when (eq at-type 'maybe)
+                      (setq unsafe-maybe t))
                     (setq maybe-expression t)
                     (throw 'at-decl-or-cast t)))))