Re: Quickly check for differences in code and locate possible errors.

[Gregory Heytings]

> I would like to know whether it's possible to quickly check for 
> differences in code and locate possible errors with the help of Emacs. 
> Any tips will be appreciated.

I think the simplest way to do what you want is:

(defun ediff-regions-characterwise ()
  (interactive)
  (let ((ediff-forward-word-function #'forward-char))
    (call-interactively 'ediff-regions-wordwise)))

Open the two files, call M-x ediff-regions-characterwise, select the two 
buffers, and type C-x h C-M-c twice.