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# std::weak_ptr::use_count

From cppreference.com
< cpp‎ | memory‎ | weak ptr

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.

### [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

expired | checks whether the referenced object was already deleted (public member function) [edit]

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