std::ranges::take_while_view<V,Pred>::take_while_view
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take_while_view() requires std::default_initializable <V> &&
std::default_initializable <Pred> = default;
(1)
(since C++20)
std::default_initializable <Pred> = default;
constexpr explicit take_while_view( V base, Pred pred );
(2)
(since C++20)
Constructs a take_while_view.
1) Default constructor. Value-initializes the underlying view and the predicate.
[edit] Parameters
base
-
underlying view
fun
-
predicate
[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 3714 (P2711R1) |
C++20 | the multi-parameter constructor was not explicit | made explicit |
| P2325R3 | C++20 | if Pred is not default_initializable, the default constructorconstructs a take_while_view which does not contain an Pred
|
the take_while_view is alsonot default_initializable
|