[chipdart]

> Just because I included an rvalue constructor doesn't make it C++11.

Actually, it does. I mean, does it compile when you pass -std=c++98?

> This library was originally written in C.

Doesn't matter. If it uses C++11 features, it's C++11.

> I feel perfectly comfortable calling C++11 "classic" or even "baroque" compared to what people are doing with C++ in 2024.

Irrelevant. You can go the Humpty Dumpty way as far as you want to go and call anything any way. It doesn't matter. If you use C++11 features, it's C++11. If it's C++11 then you're discussing modern C++. You don't need to use all bells and whistles to quality.