10 struct TakeWhileFunction;
12 template<
typename Con,
typename Pred>
13 concept CustomTakeWhile = concepts::TagInvocable<TakeWhileFunction, Con, Pred>;
15 template<
typename Con,
typename Pred>
16 concept ViewTakeWhile =
requires(Con&& container, Pred&& predicate) {
17 TakeWhileView { util::forward<Con>(container), util::forward<Pred>(predicate) };
20 struct TakeWhileFunction {
21 template<concepts::ViewableContainer Con,
typename Pred>
22 requires(CustomTakeWhile<Con, Pred> || ViewTakeWhile<Con, Pred>)
23 constexpr auto operator()(Con&& container, Pred&& predicate)
const -> concepts::View
auto {
24 if constexpr (CustomTakeWhile<Con, Pred>) {
25 return function::tag_invoke(*
this, util::forward<Con>(container), util::forward<Pred>(predicate));
27 return TakeWhileView { util::forward<Con>(container), util::forward<Pred>(predicate) };
37using view::take_while;
constexpr auto take_while
Definition take_while.h:33
TakeWhileView(Con &&, Pred) -> TakeWhileView< meta::AsView< Con >, Pred >
constexpr tag_invoke_detail::TagInvokeFn tag_invoke
Definition tag_invoke.h:22
constexpr auto curry_back
Definition curry_back.h:141
Definition any_storable.h:9