std::ranges::transform_view<V,F>::end

constexpr /sentinel/<false> end();	(1)	(since C++20)
constexpr /iterator/<false> end() requires ranges::common_range<V>;	(2)	(since C++20)
constexpr /sentinel/<true> end() const requires ranges::range<const V> && std::regular_invocable<const F&, ranges::range_reference_t<const V>>;	(3)	(since C++20)
constexpr /iterator/<true> end() const requires ranges::common_range<const V> && std::regular_invocable<const F&, ranges::range_reference_t<const V>>;	(4)	(since C++20)

Returns a sentinel or an iterator representing the end of the transform_view.

Equivalent to:

1) return sentinel<false>{ranges::end(base_);.

2) return iterator<false>{*this,ranges::end(base_)};.

3) return sentinel<true>{ranges::end(base_)};.

4) return iterator<true>{*this,ranges::end(base_)};.

(none)

1,3) sentinel which compares equal to the end iterator

2,4) iterator to the element following the last element

end() returns an iterator if and only if the underlying view is a common_range: transform_view<V,F> models common_range whenever V does.

begin	returns an iterator to the beginning (public member function)
ranges::end (C++20)	returns a sentinel indicating the end of a range (customization point object)