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std::indirect<T, Allocator>:: valueless_after_move

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C++
Memory management library
( exposition only* )
Allocators
Uninitialized memory algorithms
Constrained uninitialized memory algorithms
Memory resources
Uninitialized storage (until C++20)
( until C++20* )
( until C++20* )
( until C++20* )

Garbage collector support (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)
(C++11) (until C++23)
std::indirect
constexpr bool valueless_after_move ( ) const noexcept ;
(depuis C++26)

Vérifie si * this est sans valeur.

Valeur de retour

true si * this est sans valeur, sinon false .

Exemple

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