# std::MoveConstructible

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< cpp‎ | concepts

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

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_constructibleis_trivially_move_constructibleis_nothrow_move_constructible (C++11)(C++11)(C++11) | checks if a type can be constructed from an rvalue reference (class template)

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