Function AppendNulls

cpp/src/arrow/array/builder_primitive.h:495–508

  using value_type = bool;

  explicit BooleanBuilder(MemoryPool* pool = default_memory_pool(),
                          int64_t alignment = kDefaultBufferAlignment);

  BooleanBuilder(const std::shared_ptr<DataType>& type,
                 MemoryPool* pool = default_memory_pool(),
                 int64_t alignment = kDefaultBufferAlignment);

  /// Write nulls as uint8_t* (0 value indicates null) into pre-allocated memory
  Status AppendNulls(int64_t length) final {
    ARROW_RETURN_NOT_OK(Reserve(length));
    data_builder_.UnsafeAppend(length, false);
    UnsafeSetNull(length);
    return Status::OK();
  }

  Status AppendNull() final {
    ARROW_RETURN_NOT_OK(Reserve(1));