std::MoveConstructible (3) - Linux Man Pages

std::MoveConstructible: std::MoveConstructible

NAME

std::MoveConstructible - std::MoveConstructible

Synopsis


Defined in header <concepts>
template< class T > (since C++20)
concept MoveConstructible = std::Constructible<T, T> && std::ConvertibleTo<T, T>;


The concept MoveConstructible is satisfied if T is a reference type, or if it is an object type where an object of that type can constructed from an rvalue of that type in both direct- and copy-initialization contexts, with the usual semantics.
More precisely, if T is an object type, then MoveConstructible<T> is satisfied only if given


* rv, an rvalue of type T, and
* u2, a distinct object of type T equal to rv,


the following are true:


* After the definition T u = rv;, u is equal to u2;
* T(rv) is equal to u2; and
* If T is not const-qualified, then rv's resulting state (after the definition/expression is evaluated in either bullets above) is valid but unspecified; otherwise, it is unchanged.

See also


is_move_constructible
is_trivially_move_constructible
is_nothrow_move_constructible checks if a type can be constructed from an rvalue reference
                                (class template)
(C++11)
(C++11)
(C++11)