long use_count() const;
Returns the number of
shared_ptr instances that share ownership of the managed object, or 0 if the managed object has already been deleted, i.e. *this is empty.
The number of
shared_ptr instances sharing the ownership of the managed object.
expired() may be faster than Template:rlpf.
|This section is incomplete|
Reason: no example
| checks whether the referenced object was already deleted |
(public member function)