template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type>
constexpr ForwardIterator
upper_bound(ForwardIterator first, ForwardIterator last,
const T& value);
template<class ForwardIterator, class T = iterator_traits<ForwardIterator>::value_type,
class Compare>
constexpr ForwardIterator
upper_bound(ForwardIterator first, ForwardIterator last,
const T& value, Compare comp);
template<forward_iterator I, sentinel_for<I> S, class Proj = identity,
class T = projected_value_t<I, Proj>,
indirect_strict_weak_order<const T*, projected<I, Proj>> Comp = ranges::less>
constexpr I ranges::upper_bound(I first, S last, const T& value, Comp comp = {}, Proj proj = {});
template<forward_range R, class Proj = identity,
class T = projected_value_t<iterator_t<R>, Proj>,
indirect_strict_weak_order<const T*, projected<iterator_t<R>, Proj>> Comp =
ranges::less>
constexpr borrowed_iterator_t<R>
ranges::upper_bound(R&& r, const T& value, Comp comp = {}, Proj proj = {});