How to associate more than two file-types as C code, code included

[Mike H]

I want the files .cu and .txx to be recognized as C files..
One block of the following codes works separately, but when I put them
together.. it doesn't work.

How should I do it ?

when ((string-match "\\.cu$" fn) || (string-match "\\.txx$" fn))

will something like above work? i tried, and it doesn't...

Thanks..


(defun my-find-file-hook()
  (let ((fn (buffer-file-name)))
    (when (string-match "\\.cu$" fn)
      (c-mode))))
(add-hook 'find-file-hooks 'my-find-file-hook)

(defun my-find-file-hook()
  (let ((fn (buffer-file-name)))
    (when (string-match "\\.txx$" fn)
      (c-mode))))
(add-hook 'find-file-hooks 'my-find-file-hook)