C++11 smart pointers?

Question

C++ / C#

There are abstract classes in the code. Naturally, you have to use pointers to work with them; known to me, there are shared_ptr and weak_ptr, where several pointers can point to one object, and unique_ptr, where instead of copying, there is a transfer.
I need such a smart pointer that each pointer is the owner of one object, and when the pointer is copied, the object is copied (as I understand it, the .clone() method cannot be dispensed with here). At the moment I have my own implementation, but it seems to me that I invented the wheel.

Answer 1

“a pointer that owns a unique object, and when the pointer is copied, the object is copied ...” - can you use the object itself without any pointers? overload copy constructors and assignment operator and go ahead. what is the difference from what you need?

Answer 2

Firstly, you want something strange, and secondly, look at Qt's QSharedData and QSharedDataPointer.