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std::enable_shared_from_this::weak_from_this

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Dynamic memory management
Uninitialized storage
(C++17)
(deprecated since c++17)
(deprecated since c++17)
(deprecated since c++17)
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(C++20)
(C++11)
(C++11)
C Library
Low level memory management
 
 
std::weak_ptr<T> weak_from_this() noexcept;
(1) (since C++17)
std::weak_ptr<T const> weak_from_this() const noexcept;
(2) (since C++17)

Returns a std::weak_ptr<T> that tracks ownership of *this by all existing std::shared_ptr that refer to *this.

Contents

[edit] Notes

This is a copy of the the private mutable weak_ptr member that is part of enabled_shared_from_this.

[edit] Return value

std::weak_ptr<T> that shares ownership of *this with pre-existing std::shared_ptrs

[edit] Example

[edit] See also

smart pointer with shared object ownership semantics
(class template) [edit]