The thought just occurred to me that I really need to have the characters themselves available as template parameters in order to create static buffers.

In essence, a variation of numeric literal that can handle other types of code unit...

On Wed, Sep 20, 2023 at 10:53 PM Chris Gary <cgary512@gmail.com> wrote:

I believe this is not allowed, and that the idea hasn't circulated:

template< std::size_t size_ >

constexpr FancyString operator ""_Str( const char (&str)[size_] ) noexcept
{

 etc...
}

I can't think of an ambiguity w.r.t. other variations of UD literals here, the only difference between the two-argument version being the template parameter array size (including null), which is also known at compile time. Presently, this can be emulated (badly) with just ordinary constructors.

The purpose is to allow UD literals like the above to be used in a constexpr context where the size parameter is forwarded to a template instantiation.