If you really need something that's only for a single thread, then using TLS is gonna be better than a static.
(I actually want to write a blog post about this... haven't done so yet though. People reach for static too often and thread_local! too little, IMHO. Of course, not needing either is best.)
(I actually want to write a blog post about this... haven't done so yet though. People reach for static too often and thread_local! too little, IMHO. Of course, not needing either is best.)