연산자 오버로딩(중복 선언) - C#

class Even
{
    int evenNumber;
    public Even(int n) { evenNumber = (n % 2 == 0) ? n : n + 1; }

    public static Even operator ++(Even e) {
        e.evenNumber += 2;
        return e;
    }

    public static Even operator --(Even e) {
        e.evenNumber -= 2;
        return e;
    }
}

class Complex

{

    private double realPart;

    private double imagePart;

    public Complex(double rVal, double iVal) {

        realPart = rVal;

        imagePart = iVal;

    }

    public static Complex operator +(Complex x1, Complex x2) {

        Complex x = new Complex(0, 0);

        x.realPart = x1.realPart + x2.realPart;

        x.imagePart = x1.imagePart + x2.imagePart;

        return x;

    }

}

캐스트 연산자 오버로딩

사용자 정의 형변환?

class Mile

{

    public double distance;

    public Mile(double distance) { this.distance = distance; }

    public static implicit operator Mile(double d) {

        Mile m = new Mile(d);

        return m;

    }

    public static explicit operator Kilometer(Mile m) { return m.distance * 1.609; }

}

class Kilometer

{

    public double distance;

    public Kilometer(double distance) { this.distance = distance; }

    public static implicit operator Kilometer(double d) {

        Kilometer k = new Kilometer(d);

        return k;

    }

    public static explicit operator Mile(Kilometer k) { return k.distance / 1.609; }

}

class UserDefinedTypeConversionApp

{

    public static void Main() {

        Kilometer k = new Kilometer(100.0);

        Mile m;

        m = (Mile)k;

        ..

        m = 65.0;

        k = (Kilometer)m;

        ..

    }

}