std::enable_shared_from_this<T>:: weak_from_this

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C++
Utilities library
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Relational operators (deprecated in C++20)
Dynamic memory management
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(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)
(C++11) (until C++23)



std::enable_shared_from_this
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 .

Return value

weak_this

Notes

Feature-test macro Value Std Feature
__cpp_lib_enable_shared_from_this 201603L (C++17) std::enable_shared_from_this::weak_from_this

Example

This section is incomplete
Reason: no example

See also

(C++11)
smart pointer with shared object ownership semantics
(class template)
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