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better "enum class" indent in Emacs
;; This hack fixes indentation for C++11's "enum class" in Emacs.
(defun inside-class-enum-p (pos)
"Checks if POS is within the braces of a C++ \"enum class\"."
(goto-char pos)
(up-list -1)
(backward-sexp 1)
(looking-back "enum[ \t]+class[ \t]+[^}]+"))))
(defun align-enum-class (langelem)
(if (inside-class-enum-p (c-langelem-pos langelem))
(c-lineup-topmost-intro-cont langelem)))
(defun align-enum-class-closing-brace (langelem)
(if (inside-class-enum-p (c-langelem-pos langelem))
(defun fix-enum-class ()
"Setup `c++-mode' to better handle \"class enum\"."
(add-to-list 'c-offsets-alist '(topmost-intro-cont . align-enum-class))
(add-to-list 'c-offsets-alist
'(statement-cont . align-enum-class-closing-brace)))
(add-hook 'c++-mode-hook 'fix-enum-class)
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