std::ranges::enumerate_view<V>::end
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< cpp | ranges | enumerate view
C++
Ranges library
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std::ranges::enumerate_view
| Member functions | ||||
enumerate_view::end | ||||
| Deduction guides | ||||
| Nested classes | ||||
| Iterator | ||||
| Sentinel | ||||
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constexpr
auto end(
) requires (
!__simple_view<V>
)
;
|
(1) | (since C++23) |
|
constexpr
auto end(
)
const requires /*range-with-movable-references*/
<
const V>
;
|
(2) | (since C++23) |
Returns an iterator or a sentinel that compares equal to the end iterator of the enumerate_view
Let base_ denote the underlying view.
1) Equivalent to:
if constexpr (ranges::forward_range<V> and ranges::common_range<V> and ranges::sized_range<V>) return /*iterator*/<false>(ranges::end(base_), ranges::distance(base_)); else return /*sentinel*/<false>(ranges::end(base_));
2) Equivalent to:
if constexpr (ranges::forward_range<const V> and ranges::common_range<const V> and ranges::sized_range<const V>) return /*iterator*/<true>(ranges::end(base_), ranges::distance(base_)); else return /*sentinel*/<true>(ranges::end(base_));
Parameters
(none)
Return value
An iterator or a sentinel representing the end of the enumerate_view
Example
| This section is incomplete Reason: no example |
Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 3919 | C++23 | ranges::distance may invoke UB for sized commonnon-forward underlying ranges |
sentinel type is returned for such ranges |
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) |