std::indirectly_copyable - cppreference.com

From cppreference.com


`template< class In, class Out > concept indirectly_copyable = std::indirectly_readable<In> && std::indirectly_writable<Out, std::iter_reference_t<In>>;`		(since C++20)

The indirectly_copyable concept specifies the relationship between an indirectly_readable type and a type that is indirectly_writable. The indirectly_writable type must be able to directly copy the object that the indirectly_readable type references.

See also