template< bool Const >
class /*sentinel*/
(since C++20)

The return type of join_view::end when either of the underlying ranges (V or ranges::range_reference_t<V>) is not a common_range, or when the parent join_view is not a forward_range.

If V is not a simple view, Const is true for sentinels returned from the const overloads, and false otherwise. If V is a simple view, Const is true.

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

Typical implementation holds only one data member: a sentinel end_ obtained from (possibly const-qualified) V.

Member types

Member type Definition
Parent (private) const ranges::join_view<V> if Const is true, otherwise ranges::join_view<V>. The name is for exposition only
Base (private) const V if Const is true, otherwise V. The name is for exposition only

Member functions

constructs a sentinel
(public member function)

Non-member functions

compares a sentinel with an iterator returned from join_view::begin

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