Am Mo., 26. Okt. 2020 um 19:07 Uhr schrieb Wolfgang Corcoran-Mathe
<xxxxxx@sigwinch.xyz>:
>
> On 2020-10-25 10:40 -0400, John Cowan wrote:
> > However, I'm thinking that it would be better to write a direct C
> > implementation and then provide a sample of FFI glue required to get the
> > information in and out of Scheme.  That way we escape all dependency on
> > bytevectors and deal only with floats, doubles, and ints across the
> > Scheme/C boundary.  I don't know if you are up for doing that.
>
> I'm not sure I want to commit to writing something like that, since I
> can't immediately visualize how much work it would be.  How much of a
> Scheme number system should we assume in order to write a good example
> of this concept?  Would it be sufficient to provide C versions of
> nan-quiet?, nan-negative?, etc., operating on doubles?  This would be
> fairly easy to wrap, I suppose, although my only FFI experience has
> been with Chibi.

Is this possible in portable C99 or C11?