Eli Zaretskii <eliz@gnu.org> schrieb am Sa., 20. Aug. 2016 um 17:34 Uhr:

> >  > +This does not take narrowing into account; to count the number of
> >  > +characters in the accessible portion of the buffer, use
> >  > +‘(- (point-max) (point-min))’. */)
> >
> >  The advice in the last sentence doesn't work when BUFFER is non-nil.
> >  (I actually doubt that the advice is needed here; it's enough to have
> >  something like that in the ELisp manual -- which already hints on
> >  that, but maybe we should make that more explicit.
> >
> > I'd prefer a bit of redundancy in a very basic function such as this. At
> least I wouldn't want to search the Elisp
> > manual for additional information unless really necessary. I'd reword it
> to "the accessible portion of the current
> > buffer".
>
> If we want to give advice like that, IMO we should also give such an
> advice for when BUFFER is non-nil.
>

OK, then I'd append ", and to count the number of characters
in some other BUFFER, use
`(with-current-buffer BUFFER (- (point-max) (point-min)))'.".