std::ranges::join_view<V>:: iterator

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C++
Ranges library
Range adaptors
std::ranges::join_view
template < bool Const >
class /*iterator*/
(since C++20)
( exposition only* )

The return type of join_view::begin , and of join_view::end when both the outer range V and the inner range ranges:: range_reference_t < V > satisfy common_range and the parent join_view is a forward_range .

If V is not a simple view (e.g. if ranges:: iterator_t < const V > is invalid or different from ranges:: iterator_t < V > ), Const is true for iterators returned from the const overloads, and false otherwise. If V is a simple view, Const is true if and only if ranges:: range_reference_t < V > is a reference.

Member types

Member Definition
Parent maybe-const  < Const, ranges:: join_view < V >>
( exposition-only member type* )
Base maybe-const  < Const, V >
( exposition-only member type* )
OuterIter ranges:: iterator_t < Base >
( exposition-only member type* )
InnerIter ranges:: iterator_t < ranges:: range_reference_t < Base >>
( exposition-only member type* )
iterator_concept
iterator_category
(conditionally present) 		Defined only if iterator::iterator_concept (see above) denotes std::forward_iterator_tag .

Let OUTERC be std:: iterator_traits < ranges:: iterator_t < Base >> :: iterator_category , and let INNERC be std:: iterator_traits < ranges:: iterator_t < ranges:: range_reference_t < Base >>> ::
iterator_category .

value_type ranges:: range_value_t < ranges:: range_reference_t < Base >>
difference_type std:: common_type_t < ranges:: range_difference_t < Base > ,
ranges:: range_difference_t < ranges:: range_reference_t < Base >>>

Data members

Member Definition
OuterIter outer_ (private) An outer iterator
( exposition-only member object* )
InnerIter inner_ (private) An inner iterator
( exposition-only member object* )
Parent* parent_ (private) A pointer to the parent object
( exposition-only member object* )

Member functions

constructs an iterator
(public member function)
accesses the element
(public member function)
advances or decrements the underlying iterators
(public member function)
skips over empty inner ranges
( exposition-only member function* )

Non-member functions

(C++20)
compares the underlying iterators
(function)
(C++20)
casts the result of dereferencing the underlying iterator to its associated rvalue reference type
(function)
(C++20)
swaps the objects pointed to by two underlying iterators
(function)
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