module pind.samples.ja.ufcs.ufcs_1;

class Car {
    enum economy = 12.5;          // キロメートルあたりリットル(平均)
    private double fuelAmount;    // リットル

    this(double fuelAmount) {
        this.fuelAmount = fuelAmount;
    }

    double fuel() const {
        return fuelAmount;
    }

    // ...
}
bool canTravel(Car car, double distance) {
    return (car.fuel() * car.economy) >= distance;
}
void main() {
    auto car = new Car(5);

    auto remainingFuel = car.fuel();  // メンバー関数の構文

    if (canTravel(car, 100)) {        // 通常の関数構文
        // ...
    }
}