spacemacs.org<2>

      (evil-define-text-object rsb/textobj-inner-c-defun (count &optional beg end type)
        (save-excursion
          (mark-defun)
          (re-search-forward "{")
          (exchange-point-and-mark)
          (re-search-backward "}")
          (evil-range (region-beginning) (region-end) type :expanded t)))

      (evil-define-text-object rsb/textobj-outer-c-defun
        (count &optional beg end type)
        :type line
        (save-excursion
          (mark-defun)
          (if (looking-at "[:space:]*$")
              (forward-line))
          (exchange-point-and-mark)
          (unless (save-excursion
                    (forward-line)
                    (looking-at "[:space:]*$"))
            (forward-line))
          (evil-range (region-beginning)
                      (region-end)
                      type
                      :expanded t)))

      (define-key evil-inner-text-objects-map "f"
        'rsb/textobj-inner-c-defun)
      (define-key evil-outer-text-objects-map "f"
        'rsb/textobj-outer-c-defun)