https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109758
--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to g.peterhoff from comment #7)
> 1) Can you please still submit a proposal to the STD/ISO committee so that
> abs (besides copysign/signbit) ALWAYS works ?
What does that even mean?
Should abs("") work?
Why should the committee say anything about the behaviour of a non-standard
__float128 type?
So no, I won't submit anything related to this to the committee. This is just a
bug in a libstdc++ function, like I already said.
> 2) What do you think about my proposal for a C++ interface quadmath.hpp ?
I already said we don't want to do that. If you want full support in the
standard library, use standard types.
