Range-v3
Range algorithms, views, and actions for the Standard Library
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ranges::v3::action::take_while_fn::ConceptImpl Struct Reference
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Public Member Functions

template<typename Rng , typename Fun , typename I = range_iterator_t<Rng>, typename S = range_sentinel_t<Rng>>
auto requires_ (Rng &&, Fun &&) -> decltype( concepts::valid_expr( concepts::model_of< concepts::ForwardRange, Rng >(), concepts::model_of< concepts::ErasableRange, Rng, I, S >(), concepts::is_true(IndirectCallablePredicate< Fun, I >