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std::movable

Defined in header <concepts> 
template< class T >
concept movable =
    std::is_object_v<T> &&
    std::move_constructible<T> &&
    std::assignable_from<T&, T> &&
    std::swappable<T>;
 (since C++20)

The concept movable<T> specifies that T is an object type that can be moved (that is, it can be move constructed, move assigned, and lvalues of type T can be swapped).

See also

(C++20)
specifies that an object of a type can be copied, moved, and swapped
(concept)

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https://en.cppreference.com/w/cpp/concepts/movable