Method ReadSchema

cpp/src/arrow/ipc/read_write_test.cc:1232–1234

  }

  Status ReadSchema(std::shared_ptr<Schema>* out) {
    return ReadSchema(ipc::IpcReadOptions::Defaults(), out);
  }

  Status ReadSchema(const IpcReadOptions& read_options, std::shared_ptr<Schema>* out) {
    auto buf_reader = std::make_shared<io::BufferReader>(buffer_);