Method write

bolt/serializers/PrestoSerializer.cpp:1193–1198

  explicit CountingOutputStream() : OutputStream{nullptr} {}

  void write(const char* /*s*/, std::streamsize count) override {
    pos_ += count;
    if (numBytes_ < pos_) {
      numBytes_ = pos_;
    }
  }

  std::streampos tellp() const override {
    return pos_;