https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110353
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #2)
> (In reply to Diego Garcia from comment #1)
> > I would like to add to this that some <cmath> functions (such as nextafter
> > and nexttoward) have been constexpr since C++23, they are marked as such,
> > but the internals aren't constexpr, leading to errors:
> >
> > main.cpp:4:57: in ‘constexpr’ expansion of ‘std::nextafter(0.0f, 1.0e+0f)’
> > /opt/gcc-15/include/c++/15.1.0/cmath:2629:32: error:
> > ‘__builtin_nextafterf(0.0f, 1.0e+0f)’ is not a constant expression
> > 2629 | { return __builtin_nextafterf(__x, __y); }
> > | ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
> >
> >
> > Not sure if this would be a separate bug (due to being C++23 related) or
> > still part of this
>
> It is a seperate bug, -fno-trapping-math works around it ... There might be
> a bug already filed too.
Filed PR 120932 for that issue.
