Method FileStream

Bcore/src/main/cpp/Dobby/tests/catch.hpp:9351–9354

public:
  FileStream(StringRef filename) {
    m_ofs.open(filename.c_str());
    CATCH_ENFORCE(!m_ofs.fail(), "Unable to open file: '" << filename << "'");
  }
  ~FileStream() override = default;

public: // IStream