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std::ranges::chunk_view<V>::iterator

template< bool Const >
class /*iterator*/

(since C++23)

The return type of chunk_view::begin, and of chunk_view::end when the underlying view V is a common_range.

Used only if V models forward_range.

The type /*iterator*/<true> is returned by the const-qualified overloads. The type /*iterator*/<false> is returned by the non-const-qualified overloads.

The name of this class template (shown here as /*iterator*/) is unspecified.

Data members

Typical implementations of /*iterator*/ hold four non-static data members:

current_ of type ranges::iterator_t<Base>, that holds an iterator to the first element of current chunk in the underlying sequence (i.e. the begin of a chunk);
end_ of type ranges::sentinel_t<Base>, that holds a sentinel to the end of the underlying sequence;
n_ of type ranges::range_difference_t<Base>, that holds initial number of elements in the chunk (the last chunk can be smaller);
missing_ of type ranges::range_difference_t<Base>, that usually equals to ranges::advance(current_, n_, end_);.

These names are for exposition only.

Member types

Member type	Definition
`Parent` (private)	`const chunk_view` if `Const` is `true`, otherwise `chunk_view`. The name is for exposition only.
`Base` (private)	`const V` if `Const` is `true`, otherwise `V`. The name is for exposition only.
`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`.
`value_type`	`decltype(views::take(ranges::subrange(current_, end_), n_));`.
`difference_type`	`ranges::range_difference_t<Base>`

Member functions

(constructor) (C++23)	constructs an iterator (public member function)
base (C++23)	returns an iterator to current element (public member function)
operator* (C++23)	accesses the element (public member function)
operator[] (C++23)	accesses an element by index (public member function)
operator++operator++(int)operator--operator--(int)operator+=operator-= (C++23)	advances or decrements the underlying iterator (public member function)

Non-member functions

operator==operator<operator>operator<=operator>=operator<=> (C++23)	compares the underlying iterators (function)
operator+operator- (C++23)	performs iterator arithmetic (function)

Example

References

C++23 standard (ISO/IEC 14882:2023):

26.7.28.7 Class template chunk_view::iterator for forward ranges [range.chunk.fwd.iter]