Function MakeTransformedIterator

cpp/src/arrow/util/iterator.h:343–345

/// Any invalid status returned by the transformer will be returned immediately.
template <typename T, typename V>
Iterator<V> MakeTransformedIterator(Iterator<T> it, Transformer<T, V> op) {
  return Iterator<V>(TransformIterator<T, V>(std::move(it), std::move(op)));
}

template <typename T>
struct IterationTraits<Iterator<T>> {