std::ranges::zip_view<Views...>::iterator
template< bool Const > class /*iterator*/; // exposition only |
(1) | (since C++23) |
| Helper concepts | ||
template< bool C, class... Views >
concept /*all-forward*/ = // exposition only
(ranges::forward_range<std::conditional_t<C, const Views, Views>> && ...); |
(2) | (since C++23) |
template< bool C, class... Views >
concept /*all-bidirectional*/ = // exposition only
(ranges::bidirectional_range<std::conditional_t<C, const Views, Views>> && ...); |
(3) | (since C++23) |
template< bool C, class... Views >
concept /*all-random-access*/ = // exposition only
(ranges::random_access_range<std::conditional_t<C, const Views, Views>> && ...); |
(4) | (since C++23) |
The iterator type of a possibly const-qualified zip_view, returned by zip_view::begin and in certain cases by zip_view::end. The name of this class template (shown here as iterator) is unspecified.
The type /*iterator*/<true> or /*iterator*/<false> treats the underlying view as const-qualified or non-const-qualified respectively.
Member types
| Member type | Definition |
|---|---|
iterator_concept |
std::random_access_iterator_tag if /*all-random-access*/<Const, Views...> is true, otherwisestd::bidirectional_iterator_tag if /*all-bidirectional*/<Const, Views...> is true, otherwisestd::forward_iterator_tag if /*all-forward*/<Const, Views...> is true, otherwisestd::input_iterator_tag |
iterator_category |
std::input_iterator_tag if /*all-forward*/<Const, Views...> is true,not defined otherwise |
value_type |
If sizeof...(Views) is equal to 2:
Otherwise,
|
difference_type |
std::common_type_t<ranges::range_difference_t<Views>...> if Const is false,std::common_type_t<ranges::range_difference_t<const Views>...> otherwise. |
Data members
Typical implementations of iterator hold only one non-static data member: a std::tuple<ranges::iterator_t<Views>...> or std::tuple<ranges::iterator_t<const Views>...> when Const is false or true respectively.
For the purpose of exposition, the underlying iterators in that std::tuple are shown as is_... here.
Member functions
|
(C++23)
|
constructs an iterator (public member function) |
|
(C++23)
|
obtains a tuple-like value that consists of underlying pointed-to elements (public member function) |
|
(C++23)
|
obtains a tuple-like value that consists of underlying elements at given offset (public member function) |
|
(C++23)
|
advances or decrements the underlying iterators (public member function) |
Non-member functions
|
(C++23)
|
compares the underlying iterators (function) |
|
(C++23)
|
performs iterator arithmetic on underlying iterators (function) |
|
(C++23)
|
obtains a tuple-like value that denotes underlying pointed-to elements to be moved (function) |
|
(C++23)
|
swaps underlying pointed-to elements (function) |
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