> But on the other hand, if you have a `char const*`, it's trivial to obtain a
> string_view from it, whereas the reverse... isn't.
<source>:9:27: error: 'std::basic_string_view<char>' is not a valid type for a template non-type parameter because it is not structural
9 | template<std::string_view sv> consteval auto to_charp()
| ^~
Yeah :-(
This is actually a good reason to return string and vector<info> instead of string_view/char const* and span<info>. The containers will be usable as non-type template parameters (eventually), but the views will never be, and while char const* could be it's also not as usable.
Barry