Re: default-toplevel-value and set-default-toplevel-value

[Eli Zaretskii]

> From: Stefan Monnier <address@hidden>
> Cc: address@hidden
> Date: Mon, 12 Dec 2016 11:57:09 -0500
> 
> > These functions were evidently introduced in Emacs 24.4, but they are
> > not documented, neither in NEWS nor in the ELisp manual.  The doc
> > strings are minimal, and leave me confused about how these are
> > different from default-value and set-default.  Is this just about a
> > possible let-binding of a localized variable,
> 
> Yes.
> 
> > or is there something else involved?
> 
> No, that's it.

I seem to see there's more to this than meets the eye, see
http://lists.gnu.org/archive/html/emacs-devel/2016-12/msg00924.html.
Could you please help me understand it?  I'd like to document this for
Emacs 25.2.

TIA