NAME¶

std::move_constructible - std::move_constructible

Synopsis¶

Defined in header <concepts>
template< class T >
concept move_constructible = std::constructible_from<T, T> && (since C++20)
std::convertible_to<T, T>;

The concept move_constructible is satisfied if T is a reference type, or if it is an
object type where an object of that type can be constructed from an rvalue of that
type in both direct- and copy-initialization contexts, with the usual semantics.

Semantic requirements

If T is an object type, then move_constructible<T> is modeled 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 checks if a type can be constructed from an rvalue
is_nothrow_move_constructible reference
(C++11) (class template)
(C++11)
(C++11)