std::ranges::enumerate_view<V>::iterator

template< bool Const >
class /*iterator*/

(since C++23)
(exposition only*)

The return type of enumerate_view::begin, and of enumerate_view::end when the underlying view V 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	Definition
`Base` (private)	`maybe-const` <Const,V> (exposition-only member type*)
`iterator_category`	`std::input_iterator_tag`
`iterator_concept`	`std::random_access_iterator_tag`, if `Base` models `random_access_range`. Otherwise, `std::bidirectional_iterator_tag`, if `Base` models `bidirectional_range`. Otherwise, `std::forward_iterator_tag`, if `Base` models `forward_range`. Otherwise, `std::input_iterator_tag`.
`difference_type`	ranges::range_difference_t<Base>
`value_type`	std::tuple<difference_type,ranges::range_value_t<Base>>
`reference-type` (private)	std::tuple<difference_type,ranges::range_reference_t<Base>> (exposition-only member type*)

Data members

Member	Description
ranges::iterator_t<Base> `current_` (private)	an iterator to the current element (exposition-only member object*)
`difference_type` `pos_` (private)	current index (exposition-only member object*)

Member functions

(constructor)	constructs an iterator (public member function)
base	returns an iterator to current element (public member function)
index	returns current index (public member function)
operator*	accesses the 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<=> (C++23)	compares the underlying iterators (function)
operator+operator- (C++23)	performs iterator arithmetic (function)
iter_move (C++23)	casts the result of dereferencing the underlying iterator to its associated rvalue reference type (function)

Example

References

C++23 standard (ISO/IEC 14882:2024):

26.7.23.3 Class template enumerate_view::iterator [range.enumerate.iterator]

© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
https://en.cppreference.com/cpp/ranges/enumerate_view/iterator