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

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< cpp‎ | ranges‎ | join view
 
 
Ranges library
Range access
Range conversions
(C++23)

Range primitives



Dangling iterator handling
Range concepts
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Range factories
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Range generators
Range adaptor objects
Range adaptor closure objects
Helper items
(until C++23)(C++23)


 
 
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.

Contents

[edit] Member types

Member type Definition
Parent const join_view<V> if Const is true, otherwise join_view<V>
(exposition-only member type*)
Base const V if Const is true, otherwise 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>>>

[edit] Member objects

Member name Definition
outer_ (private) An object of type OuterIter
(exposition-only member object*)
inner_ (private) An object of type InnerIter
(exposition-only member object*)
parent_ (private) An object of type Parent
(exposition-only member object*)

[edit] 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*)

[edit] Non-member functions

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)