iceberg::internal::ParallelCollectible Concept Reference

Concept definition

template<typename InputRange, typename Task, auto... Options>
concept iceberg::internal::ParallelCollectible = 
    std::ranges::forward_range<InputRange> && std::ranges::sized_range<InputRange> &&
    (std::is_lvalue_reference_v<std::ranges::range_reference_t<InputRange>> ||
     std::constructible_from<
         std::remove_cvref_t<std::ranges::range_reference_t<InputRange>>,
         std::ranges::range_reference_t<InputRange>>) &&
    requires(std::remove_reference_t<Task>& task,
             ParallelCollectArgT<std::ranges::range_reference_t<InputRange>> item) {
      { std::invoke(task, std::forward<decltype(item)>(item)) } -> AsResult;
      requires(!std::same_as<void, ParallelCollectValueT<InputRange, Task>>);
      requires std::default_initializable<ParallelCollectValueT<InputRange, Task>>;
      requires ParallelReducible<ParallelCollectValueT<InputRange, Task>, Options...>;
    }