IEEE Interchange floating point and extended floating point for C++

[Jonathan Wakely]

On Thu, 11 Mar 2021 at 15:07, Gabriel Ravier via Gcc <gcc@gcc.gnu.org> wrote:
>
> On 3/11/21 1:56 PM, Jonathan Wakely via Gcc wrote:
> > On Thu, 11 Mar 2021 at 09:43, Kito Cheng via Gcc <gcc@gcc.gnu.org> wrote:
> >> Hi:
> >>
> >> Would it be possible to support interchange floating point and/or
> >> extended floating point for C++, which is introduced by ISO/IEC TS
> >> 18661-3?
> >>
> >> I've read the note about C++ support from the initial commit log[1],
> >> so I know there is some concern about C++ support for that, is it
> >> possible to enable that for C++ like a language extension for C++?
> >>
> >> The main demand comes from the data type for half-precision, ISO/IEC
> >> TS 18661-3 is the only common spec which supports half-precision and
> >> both GCC and clang are supported.
> >>
> >> However it can't be used on C++ for GCC, so it's hard to use that as a
> >> workable solution for half-precision data types.
> >>
> >> Or maybe ISO/IEC JTC1 SC22 WG14 N2016[2] is a better way for
> >> half-precision data types?
> > See https://wg21.link/p1467 and https://wg21.link/p1467 for the
> > relevant C++ proposals.
> Isn't that the same link two times ?

The difference is smaller than epsilon.

Sorry, the second one should be https://wg21.link/p14678