std::weak_ptr::use_count
From cppreference.com
| long use_count() const;
|
(since C++11) | |
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.
Contents |
[edit] Parameters
(none)
[edit] Return value
The number of shared_ptr instances sharing the ownership of the managed object.
[edit] Exceptions
noexcept specification:
noexcept
[edit] Notes
expired() may be faster than use_count().
[edit] Example
| This section is incomplete Reason: no example |
[edit] See also
| checks whether the referenced object was already deleted (public member function) |