std::ranges:: subrange_kind

From cppreference.com
Ranges library
Range adaptors
Defined in header <ranges>
enum class subrange_kind : bool {

unsized,
sized

} ;
(since C++20)

Specifies if a std::ranges::subrange models std::ranges::sized_range or not.

Constants

Name Explanation
unsized specifies that the subrange does not model sized_range
sized specifies that the subrange does model sized_range