[Bug c++/105509] [compatibility] f16 suffix not supported in C++ mode - unable to find numeric literal operator ‘operator""f16’

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105509

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Thiago Macieira from comment #0)
> See also https://wg21.link/p1467, notably section 5.10 Literal suffixes

That isn't supported yet *at all*. And it's not in the C++ draft yet.

The current support in G++ is just "some of the C stuff as an extension", not
an attempt to implement P1467. We will need the f16 suffix for C++23 eventually
though.