Re: C23 support for libm

On 11/27/25 09:31, Robert Clausecker wrote:
> Greetings!
> 
> I have started a project page [1] to track our effort to support C23
> on FreeBSD.  Many new and exciting libm functions were added in this
> standard revision, and it seems like so far we only have
> {sin,cos,tan}pi{,f,l}() implemented (thanks to kargl for the work!)
> 
> If anybody is interested in working on this, please let me know.
> I am not an expert in numerical programming, but will try ot look
> into adding some of these if nobody else comes forth.
> 

Last time I looked, there are 6 or so functions from C99 that are
still not implemented.  I don't remember if new functions appeared
in C11.

I'll also suggest that pulling in functions from other projects
(e.g., cephus) without thorough testing should be frowned upon.
There are a few examples of this already in libm, which have
accuracy issues and bugs.

As usual and time permitting, I'll slowly peck away the
unimplemented functions.

-- 
steve