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std::ranges::join_view<V>:: end

From cppreference.net
C++
Ranges library
Range adaptors
std::ranges::join_view
constexpr auto end ( ) ;
(1) (since C++20)
constexpr auto end ( ) const

requires ranges:: input_range < const V > &&

std:: is_reference_v < ranges:: range_reference_t < const V >> ;
(2) (since C++20)

Returns a sentinel or an iterator representing the end of the join_view .

Let base_ be the underlying view:

1) Equivalent to 
if constexpr (ranges::forward_range<V> &&
              std::is_reference_v<ranges::range_reference_t<V>> &&
              ranges::forward_range<ranges::range_reference_t<V>> &&
              ranges::common_range<V> &&
              ranges::common_range<ranges::range_reference_t<V>>)
    return /*iterator*/</*simple-view*/<V>>{*this, ranges::end(base_)};
else
    return /*sentinel*/</*simple-view*/<V>>{*this};
2) Equivalent to 
if constexpr (ranges::forward_range<const V> &&
              std::is_reference_v<ranges::range_reference_t<const V>> &&
              ranges::forward_range<ranges::range_reference_t<const V>> &&
              ranges::common_range<const V> &&
              ranges::common_range<ranges::range_reference_t<const V>>)
    return /*iterator*/<true>{*this, ranges::end(base_)};
else
    return /*sentinel*/<true>{*this};

Contents

Parameters

(none)

Return value

1) sentinel which compares equal to the end iterator.
2) iterator to the element following the last element.

Example

This section is incomplete
Reason: no example

See also

returns an iterator to the beginning
(public member function)
(C++20)
returns a sentinel indicating the end of a range
(customization point object)