Function main

03.20-rangesCustomAdaptor1/main.cpp:18–29

}

int main()
{
  const std::vector prices{3.95, 6.0, 95.4, 10.95, 12.90, 5.50};

  auto subView =
    prices |
    std::views::filter([](auto e) { return e < 10.0; })
    // #A Use the adaptor as usual
    | addCurrency(" €");

  for(const auto& e : subView) { std::cout << e << '\n'; }
}