(require 'irony) (add-hook 'c-mode-hook 'irony-mode) (add-hook 'c++-mode-hook 'irony-mode) (add-hook 'objc-mode-hook 'irony-mode) (add-hook 'irony-mode-hook 'irony-cdb-autosetup-compile-options) (add-to-list 'company-backends 'company-irony) ; backend追加