Method AppendNull

cpp/src/arrow/array/builder_binary.h:117–122

  }

  Status AppendNull() final {
    ARROW_RETURN_NOT_OK(Reserve(1));
    UnsafeAppendNextOffset();
    UnsafeAppendToBitmap(false);
    return Status::OK();
  }

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