class template
<memory>

std::weak_ptr

template <class T> class weak_ptr;
Weak shared pointer
[under construction

Template parameters

T
The type of the weakly managed object, aliased as member type element_type.

Member types

The following alias is a member type of weak_ptr.

member typedefinitionnotes
element_typeTemplate parameter (T)The type of the weakly managed object

Member functions

(constructor)
Construct weak_ptr (public member function )
(destructor)
Destroy weak_ptr (public member function )
operator=
weak_ptr assignment (public member function )
swap
Swap content (public member function )
reset
Reset pointer (public member function )
use_count
Use count (public member function )
expired
Check if expired (public member function )
lock
Lock and restore weak_ptr (public member function )
owner_before
Owner-based ordering (public member function template )

Non-member functions

Overloads:
swap
Exchange content of weak_ptr objects (function template )

See also

shared_ptr
Shared pointer (class template )
owner_less
Owner-based less-than operation (class template )

C++