std::ranges::view_interface - Man Page

constexpr decltype(auto) back ()
constexpr decltype(auto) back () const
constexpr auto data () const noexcept(noexcept(ranges::begin(_M_derived())))
constexpr auto data () noexcept(noexcept(ranges::begin(_M_derived())))
constexpr bool empty () const noexcept(noexcept(_S_empty(_M_derived())))
constexpr bool empty () const noexcept(noexcept(ranges::size(_M_derived())==0))
constexpr bool empty () noexcept(noexcept(_S_empty(_M_derived())))
constexpr bool empty () noexcept(noexcept(ranges::size(_M_derived())==0))
constexpr decltype(auto) front ()
constexpr decltype(auto) front () const
constexpr operator bool () const noexcept(noexcept(ranges::empty(_M_derived())))
constexpr operator bool () noexcept(noexcept(ranges::empty(_M_derived())))
template<random_access_range _Range = _Derived> constexpr decltype(auto) operator[] (range_difference_t< _Range > __n)
template<random_access_range _Range = const _Derived> constexpr decltype(auto) operator[] (range_difference_t< _Range > __n) const
constexpr auto size () const noexcept(noexcept(_S_size(_M_derived())))
constexpr auto size () noexcept(noexcept(_S_size(_M_derived())))

requires is_class_v<_Derived> && same_as<_Derived, remove_cv_t<_Derived>>
class std::ranges::view_interface< _Derived >"The ranges::view_interface class template.