No, C++ and especially C have much looser notions around ownership and lifetimes. They still require the basic idea of temporaral safety at all times, but differ greatly in how that's achieved in practice. For example, you'd typically share an Arc<RwLock<T>> between threads in rust, even if it doesn't strictly need them for whatever reason. I can't say I've ever seen someone manually implement Arc in C, and RwLock might be ensured half a dozen ways spanning the entire gamut from no protection for things like file handles all the way up to full mutexes.