If you create shared_ptr with boost::make_shared, the counter and deleter would be allocated in the same block. Linked-list pointer has no significant advantages and for multi-threaded performance it is worse than shared_ptr.

True. If make_shared is used to create shared pointers, shared_ptr is better than linked-list pointer for all usages.

It has an adnvantage for this specific task: it is possible to access all the pointers that share the ownership and reset them all.

Are there any other advantages of single-linked except space for a pointer ?

None that I know of.

Roman Perepelitsa.