“Inline”, though, is a request, like a hint. It doesn’t _enforce_ it. And this is my problem with most optimisations: you can’t guarantee they’ve happened. Putt

“Inline”, though, is a request, like a hint. It doesn’t _enforce_ it. And this is my problem with most optimisations: you can’t guarantee they’ve happened. Putting them in the type system is definitely the right way of doing this. constexpr, however, does seem to be enforced.