std::ranges::elements_view::iterator(3)

NAME
std::ranges::elements_view::iterator - std::ranges::elements_view::iterator

Synopsis
   template< bool Const > (exposition only*)
   class /*iterator*/;
   The return type of elements_view::begin, and of elements_view::end when the
   underlying view is a common_range.
   The type /*iterator*/<true> is returned by the const-qualified overloads. The type
   /*iterator*/<false> is returned by the non-const-qualified overloads.

Member types
   Member type Definition
   Base (private) const V if Const is true, otherwise V.
                     (exposition-only member type*)
                     Denotes:
                       * std::random_access_iterator_tag, if Base models
                        random_access_range. Otherwise,
   iterator_concept * std::bidirectional_iterator_tag, if Base models
                        bidirectional_range. Otherwise,
                       * std::forward_iterator_tag, if Base models forward_range.
                        Otherwise,
                       * std::input_iterator_tag.
                     Not defined, if Base does not model forward_range. Otherwise,
                       * std::input_iterator_tag, if std::get<N>(*current_) is an
                        rvalue. Otherwise, let C be the type
   iterator_category std::iterator_traits<std::iterator_t<Base>>::iterator_category.
                       * std::random_access_iterator_tag, if C models
                        std::derived_from<std::random_access_iterator_tag>. Otherwise,
                       * C.
   value_type std::remove_cvref_t<std::tuple_element_t<N,
                     ranges::range_value_t<Base>>>
   difference_type ranges::range_difference_t<Base>
   Data members
   Member object Definition
                      An iterator of type ranges::iterator_t<Base> to current element
   current_ (private) of underlying sequence.
                      (exposition-only member object*)

Member functions
   constructor constructs an iterator
   (C++20) (public member function)
   base returns the underlying iterator
   (C++20) (public member function)
   operator* accesses the N^th tuple element
   (C++20) (public member function)
   operator[] accesses an element by index
   (C++20) (public member function)
   operator++
   operator++(int)
   operator-- advances or decrements the underlying iterator
   operator--(int) (public member function)
   operator+=
   operator-=
   (C++20)

Non-member functions
   operator==
   operator<
   operator> compares the underlying iterators
   operator<= (function)
   operator>=
   operator<=>
   (C++20)
   operator+ performs iterator arithmetic
   operator- (function)
   (C++20)
   Defect reports
   The following behavior-changing defect reports were applied retroactively to
   previously published C++ standards.
      DR Applied to Behavior as published Correct behavior
   P2259R1 C++20 member iterator_category is always defined only if Base models
                       defined forward_range
   LWG 3555 C++20 the definition of iterator_concept made to consider
                       ignores const

See also
   iterator the return type of ranges::transform_view::begin, and of
   (C++20) ranges::transform_view::end when the underlying view is a common_range
            (private member class template)