> this reminds me of the msvc specific __declspec modifier selectany that seems to squash all identical variables with external linkage into the same instance that just sounds like `inline` to me?
i came across it from a search that led me to the 2nd link, where i was trying to define `extern constexpr` (in the context i think constexpr would have been inline implicitly). either way I didn't use it... i tend to try to avoid those compiler specific features unless it's unavoidable. it makes it a pain when working on crossplatform code