[Bug c++/99377] [modules] undefined std::string_view::empty() if referenced in inline exported function

[johelegp at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99377

--- Comment #6 from Johel Ernesto Guerrero Peña <johelegp at gmail dot com> ---
A workaround for static member functions:
```C++
template<std::unsigned_integral I> [[nodiscard]] consteval I max() { return
std::numeric_limits<I>::max(); }
    if (v == std::numeric_limits<I>::max()) break;
    if (v == max<I>()) break;
```