util::details::get_elements_impl< Coll, First, Others > Struct Template Reference

#include <get_elements.h>

Static Public Member Functions
template<typename T >
static decltype(auto) constexpr	iterate (T &&coll) noexcept

Detailed Description

template<typename Coll, std::size_t First, std::size_t... Others>
struct util::details::get_elements_impl< Coll, First, Others >

Definition at line 102 of file get_elements.h.

Member Function Documentation

template<typename Coll , std::size_t First, std::size_t... Others>

template<typename T >

static decltype(auto) constexpr util::details::get_elements_impl< Coll, First, Others >::iterate ( T &&  coll )

inlinestaticnoexcept

Definition at line 105 of file get_elements.h.

      {
        auto extractor = [](auto&& item) -> decltype(auto)
          {
            if constexpr(sizeof...(Others) == 0U) {
              return util::get<First>(item);
            }
            else {
              return std::forward_as_tuple
                (util::get<First>(item), util::get<Others...>(item));
            }
          };
        return util::make_transformed_span(coll, extractor);
      }

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The documentation for this struct was generated from the following file:

• larcorealg/larcorealg/CoreUtils/get_elements.h