std::ranges::take_while_view<V,Pred>::end
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< cpp | ranges | take while view
C++
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constexpr
auto end(
) requires (
!
/*simple-view*/
<V>
)
;
|
(1) | (since C++20) |
|
constexpr
auto end(
)
const requires
ranges::range<const V> && |
(2) | (since C++20) |
Returns a sentinel representing the end of the view.
Let base_ denote the underlying view.
1) Effectively returns
/*sentinel*/
<
false
>
(
ranges::end
(base_), std::addressof
(pred(
)
)
)
2) Effectively returns
/*sentinel*/
<
true
>
(
ranges::end
(base_), std::addressof
(pred(
)
)
)
Overload (1) does not participate in overload resolution if V is a simple view (that is, if V and const V
Parameters
(none)
Return value
A sentinel representing the end of the 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 3450 | C++20 | the const overload might return a sentinel non-comparable to the iterator | constrained |
See also
| returns an iterator to the beginning (public member function) |
|
|
(C++20)
|
compares a sentinel with an iterator returned from take_while_view::begin (function) |