bug#49944: parse-partial-sexp fails to signal an error when (> START LIMIT).

[Lars Ingebrigtsen]

Alan Mackenzie <acm@muc.de> writes:

> Emacs-28, emacs started with site-start.el and .emacs.
>
> On calling
>
>     (parse-partial-sexp 19 18 nil nil s)
>
> Emacs surely ought to signal an error, since 18 < 19.  It doesn't,
> though.  It leaves point at a random position and returns
>
>     (0 nil nil nil nil nil 0 nil nil nil nil)
>
> This is a bug.

I've now made this change (and the doc string clarification discussed).
There are no test failures after the change, and I'm not getting any
errors when running it normally, either.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no