Using smart pointers for dynamically allocated arrays in C++

Based on "Item 16: Use the same form in corresponding uses of new and delete" of Scott Meyers' Effective C++, you should not put dynamically allocated arrays in auto_ptr (or tr1::shared_ptr) since delete p instead of delete[] p is called upon destruction (also see answers). But does this still holds for C++11< and more in particular for std::shared_ptr and std::unique_ptr, since I noticed in some open source code the use of std::unique_ptr<uint8_t[]>? And if the latter is correct, how could one distinguish between new and new [] allocated data?