std::ranges::elements_view<V,N>::iterator

template < bool Const > class /*iterator*/ ;		(exposition only*)

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>

Member types

Member type	Definition
Base (private)	const V if Const is true, otherwise V. (exposition-only member type*
iterator_concept	Denotes: std::random_access_iterator_tag, if Base models random_access_range std::bidirectional_iterator_tag, if Base models bidirectional_range std::forward_iterator_tag, if Base models forward_range std::input_iterator_tag.
iterator_category (conditionally present)	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 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 > 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
current_ (private)	An iterator of type ranges::iterator_t<Base> to current element of underlying sequence. (exposition-only member object*

Member functions

(constructor)	constructs an iterator (public member function)
base	returns the underlying iterator (public member function)
operator*	accesses the Nth tuple element (public member function)
operator[]	accesses an element by index (public member function)
operator++ operator++(int) operator-- operator--(int) operator+= operator-=	advances or decrements the underlying iterator (public member function)

Non-member functions

operator==operator<operator>operator<=operator>=operator<=> (C++20)	compares the underlying iterators (function)
operator+operator- (C++20)	performs iterator arithmetic (function)

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	defined only if Base models forward_range
LWG 3555	C++20	the definition of iterator_concept ignores const	made to consider

See also

iterator (C++20)

the return type of ranges::transform_view::begin, and of ranges::transform_view::end when the underlying view is a common_range (private member class template)