问题
Is the sole difference between boost::scoped_ptr<T> and std::unique_ptr<T> the fact that std::unique_ptr<T> has move semantics whereas boost::scoped_ptr<T> is just a get/reset smart pointer?
回答1:
No, but that is the most important difference.
The other major difference is that unique_ptr can have a destructor object with it, similarly to how shared_ptr can. Unlike shared_ptr, the destructor type is part of the unique_ptr's type (the way allocators are part of STL container types).
回答2:
unique_ptr owns an object exclusively.It is non-copyable but supports transfer-of-ownership. It was introduced as replacement for the now deprecated auto_ptr.
scoped_ptr is neither copyable nor movable. It is the preferred choice when you want to make sure pointers are deleted when going out of scope.
来源：https://stackoverflow.com/questions/8199812/difference-between-boostscoped-ptrt-and-stdunique-ptrt