Static implicit operator

Question

I recently found this code:

 public static implicit operator XElement(XmlBase xmlBase)
 {
     return xmlBase.Xml;
 }

What does stati

Answer 1

Another interesting usage is (which Unity did to check if an object (and therefore an instance of MonoBehavior) is null):

public static implicit operator bool (CustomClass c)
{
    return c != null;
}

Note that the code has to be inside the class (CustomClass in this case). That way you can do something like this:

void Method ()
{
    CustomClass c1 = null;
    CustomClass c2 = new CustomClass ();

    bool b1 = c1; // is false
    bool b2 = c2; // is true

    if (!c1 && c2)
    {
        // Do stuff
    }
}

Obviously the most notorious use might be using it to convert one of your classes to another of your classes. But using them with basic types is worth a consideration as well... and I see it mentioned quite rarely.