void ribi::Chess::QtChessBoardWidget::Test() noexcept
{
  {
    static bool is_tested = false;
    if (is_tested) return;
    is_tested = true;
  }
  {
    QtChessBoardWidget();
  }
}
void ribi::Chess::QtChessBoardWidget::Test() noexcept
{
  {
    static bool is_tested = false;
    if (is_tested) return;
    is_tested = true;
  }
  #ifdef MXE_SUPPORTS_THREADS
  std::thread t(
    []
  #endif
    {
      QtChessBoardWidget();
    }
  #ifdef MXE_SUPPORTS_THREADS
  );
  t.join();
  #endif
}