# std::ranges::join_with_view<V,Pattern>::end

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< cpp‎ | ranges‎ | join with view

constexpr auto end(); | (1) | (since C++23)
constexpr auto end() const requires ranges::forward_range <const V> && ranges::forward_range <const Pattern> && std::is_reference_v < ranges::range_reference_t <const V>>> && ranges::input_range < ranges::range_reference_t <const V>> && /*concatable*/< ranges::range_reference_t <const V>, const Pattern>; | (2) | (since C++23)

Returns an iterator or a sentinel that compares equal to the past-the-end iterator of the `join_with_view`.

1) Returns a mutable iterator/sentinel or const iterator/sentinel.

- If all following conditions are satisfied, returns an iterator:

  - `V` models `forward_range` and `common_range`.
  - std::is_reference_v <`InnerRng`﻿> is true.
  - `InnerRng` models `forward_range` and `common_range`.

- Otherwise, returns a sentinel.

2) Returns a const iterator/sentinel.

- If all following conditions are satisfied, returns an iterator:

  - const V models `common_range`.
  - ranges::range_reference_t <const V> models `forward_range` and `common_range`.

- Otherwise, returns a sentinel.

For the definition of /*concatable*/, see `std::ranges::concat_view`.

### Return value

Overload | Return value
--- | ---
Iterator | Sentinel
(1) | `iterator`﻿< `simple-view`﻿<V> && `` `simple-view`﻿<Pattern>> `` {*this, ranges::end (`base_`)} | `sentinel`﻿< `simple-view`﻿<V> && `` `simple-view`﻿<Pattern>> `` {*this}
(2) | `iterator`﻿<true>{*this, ranges::end (`base_`)} | `sentinel`﻿<true>{*this}

### Example

| This section is incomplete Reason: no example

### See also

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

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