Function std_index

cpp/src/arrow/acero/asof_join_node.cc:88–90

template <typename T, typename V = typename T::value_type,
          typename D = typename T::difference_type>
inline D std_index(const T& container, const V& val) {
  return std_find(container, val) - container.begin();
}

typedef uint64_t ByType;
typedef uint64_t OnType;