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std::Movable

Defined in header <concepts>
template < class T >
concept Movable =
  std::is_object_v<T> &&
  std::MoveConstructible<T> &&
  std::Assignable<T&, T> &&
  std::Swappable<T>;
(since C++20)

The concept Movable<T> specifies that T is an object type that can 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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http://en.cppreference.com/w/cpp/concepts/Movable