(cwarn-font-lock-match-assignment-in-expression):

Add shift-assignment operators to those highlighted, and highlight
the whole operator rather than just the "=".  From Broadey Kevin
<Kevin.Broadey@motorola.com>.

lisp/ChangeLog

+2001-12-05  Eli Zaretskii  <eliz@is.elta.co.il>
+
+	* progmodes/cwarn.el (cwarn-font-lock-match-assignment-in-expression):
+	Add shift-assignment operators to those highlighted, and highlight
+	the whole operator rather than just the "=".  From Broadey Kevin
+	<Kevin.Broadey@motorola.com>.
+
 2001-12-04  Juanma Barranquero  <lektu@terra.es>
 	* files.el (save-abbrevs, save-some-buffers): Don't ask the user

lisp/progmodes/cwarn.el

@@ -394,7 +394,9 @@ brace."
   (let ((res nil))
     (while
 	(progn
-	  (setq res (re-search-forward "[^!<>=]\\(=\\)[^=]" limit t))
+	  (setq res (re-search-forward
+		     "[^!<>=]\\(\\([-+*/%&^|]\\|<<\\|>>\\)?=\\)[^=]"
+		     limit t))
 	  (and res
 	       (save-excursion
 		 (goto-char (match-beginning 1))