std::ranges::take_while_view<V,Pred>::end
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constexpr auto end() requires (!/*simple-view*/<V>);
(1)
(since C++20)
constexpr auto end() const requires
(2)
(since C++20)
ranges::range <const V> &&
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 are views with the same iterator and sentinel types).
[edit] Parameters
(none)
[edit] Return value
A sentinel representing the end of the view.
[edit] Example
This section is incomplete
Reason: no example
Reason: no example
[edit] 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 |