Fix clang-format-region-or-buffer and change binding to C-c f

config.org

@@ -1291,8 +1291,8 @@
      (defun clang-format-region-or-buffer ()
        "Format the region if it's active, otherwise format the entire buffer."
          (interactive)
-         (if (region-active-p)
-             (clang-format-region)
+         (if (use-region-p)
+             (clang-format-region (region-beginning) (region-end))
            (clang-format-buffer)))
    #+end_src
 
@@ -1302,7 +1302,7 @@
      (add-hook
       'c-mode-hook
       (lambda ()
-        (define-key c-mode-map (kbd "C-M-f")
+        (define-key c-mode-map (kbd "C-c f")
           'clang-format-region-or-buffer)))
    #+end_src