Re: set-text-properties, remove-set-properties, add-text-properties: 1) doc string 2) return value

[David Kastrup]

Luc Teirlinck <address@hidden> writes:

> I could add:
>
>     This function returns nil if it _knows_ that it did not replace any
>     properties, non-nil otherwise.
>
> to both the docstring and the Elisp manual, if desired.

Since the programmer has no way of guessing what a function might or
might not know (interesting word choice, anyway), this sounds like the
worst of all solutions.

I'd rather have "no useful value is returned".

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum