std::ranges::chunk_view<V>::end
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< cpp | ranges | chunk view
V models only input_range |
||
constexpr std::default_sentinel_t end() const noexcept; |
(1) | (since C++23) |
V models forward_range |
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constexpr auto end() requires (!__simple_view<V>); |
(2) | (since C++23) |
constexpr auto end() const requires ranges::forward_range<const V>; |
(3) | (since C++23) |
Returns an iterator or a std::default_sentinel that compares equal to the end iterator of the chunk_view
.
2,3) Available if V models
forward_range
. Let base_
denote the underlying adapted view, n_
denote the stored chunk size, and iterator
denote the nested iterator class.2) Equivalent to:
if constexpr (ranges::common_range<V> && ranges::sized_range<V>) { auto missing = (n_ - ranges::distance(base_) % n_) % n_; return iterator<false>(this, ranges::end(base_), missing); } else if constexpr (ranges::common_range<V> && !ranges::bidirectional_range<V>) return iterator<false>(this, ranges::end(base_)); else return std::default_sentinel;
3) Equivalent to:
if constexpr (ranges::common_range<const V> && ranges::sized_range<const V>) { auto missing = (n_ - ranges::distance(base_) % n_) % n_; return iterator<true>(this, ranges::end(base_), missing); } else if constexpr (ranges::common_range<const V> && !ranges::bidirectional_range<const V>) return iterator<true>(this, ranges::end(base_)); else return std::default_sentinel;
Contents |
[edit] Parameters
(none)
[edit] Return value
An iterator or sentinel representing the end of the chunk_view
, as described above.
[edit] Example
This section is incomplete Reason: no example |
[edit] 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) |