What is the portable 128-bit floating point type?

[Cy Schubert]

In message <20190526120809.GB65430 at night.db.net>, Diane Bruce writes:
> On Sun, May 26, 2019 at 12:02:34PM +0200, Dimitry Andric wrote:
> > On 26 May 2019, at 02:20, Yuri <yuri at rawbw.com> wrote:
> > > 
> > > On 2019-05-25 14:30, Dimitry Andric wrote:
> > >> But from clang's OSTargets.h file, it looks like 128 bit float support
> > >> is never set to enabled for FreeBSD.
> > > 
> > > 
> > > If clang supports __float128, and clang is FreeBSD's main compiler, shoul
> dn't it be enabled on FreeBSD then?
> > 
> > It probably should, but those kinds of things don't just magically appear
> > out of thin air: Somebody(TM) has to do the actual work to implement the
> > support, test it, maintain it, and so on.  Apparently there has not yet
> > been any great need for this floating point precision.
> > 
> > Are you volunteering? :)
>
> I've been slowly looking at it already in my copious spare time.
> It's really something we should be supporting. The libgcc_s wrong version
> problem is being dealt with by others by linking gfortran with a static
> version of libgcc_s (!). (As discussed with Cy at BSDCan 2019)
> See https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=208120#c24
> specifically comment 35

My thoughts were that the base libgcc_s should have a different name so 
as not to be confused with the real libgcc_s from ports.

>
> > 
> > -Dimitry
> > 
> > P.S.: I believe one of the first requirements is a <quadmath.h> header.
> > 
>
> - Diane
> -- 
> - db at FreeBSD.org db at db.net http://www.db.net/~db


-- 
Cheers,
Cy Schubert <Cy.Schubert at cschubert.com>
FreeBSD UNIX:  <cy at FreeBSD.org>   Web:  http://www.FreeBSD.org

	The need of the many outweighs the greed of the few.