std::auto_ptr was fixed one or two times before being replaced. It is a little bit unsettling to see newer features having the same sort of caveats, despite the

std::auto_ptr was fixed one or two times before being replaced. It is a little bit unsettling to see newer features having the same sort of caveats, despite there being a lot of smart people planning the future of the language. I imagine this is due to the way that the existing features combine combinatorially to multiply the complexity of every new feature.