https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96088
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Marc Glisse from comment #3)
> > Adding hash<string>::operator()(string_view) is an interesting idea for the
> > standard though.
>
> Indeed. If we want to, I think it is possible to add some overloads for when
> the argument is exactly const char* or string_view, which should remain
> conforming and provide a significant part of the benefits.
It would probably have to be:
template<typename T>
requires same_as<T, basic_string_view<Char,Traits>>
size_t
operator()(T) const;
otherwise it can introduce ambiguities for things convertible to both string
and string_view. But that annoyance aside, it seems worth exploring.
