On Fri, Oct 31, 2014 at 10:47 AM, Stefan Monnier <monnier@iro.umontreal.ca>
wrote:
>
> What do you use them for?


It's left over code, I presume they were there because, upon first read of
the documentation, it looked as though you needed to call (ad-start-advice)
to get things going.

> Whatever you think of people (over)using 'advice, the 'ad-start-advice and
> > 'ad-stop-advice were a part of the tutorial and documentation in 24.3.
>
> Which tutorial are you referring to?
>

advice.el (distributed with Emacs 24.3) lines 861-1694, beginning with:

;; @ Foo games: An advice tutorial
;; ===============================
;; The following tutorial was created in Emacs 18.59. Left-justified
;; s-expressions are input forms followed by one or more result forms.
;; First we have to start the advice magic:
;;
;; (ad-start-advice)
;; nil


Though it's also in the info pages installed on my machine - I have no idea
where/when they're from.


TJ


-- 
Trey Jackson
bigfaceworm@gmail.com

"Like any truly useful program, `hello' contains a built-in mail reader."
-- GNU's Bulletin, July 1996