Ambiguous call between two C# extension generic methods one where T:class and other where T:struct

Question

Consider two extension methods:

public static T MyExtension(this T o) where T:class
public static T MyExtension(this T o) where T:struct
         


        

Answer 1

Eric Lippert explains better than I ever could, here.

I have come across this myself. My solution was

public void DoSomthing (T theThing){
    if (typeof (T).IsValueType)
        DoSomthingWithStruct (theThing);
    else
        DoSomthingWithClass (theThing);  
}

// edit - seems I just lived with boxing

public void DoSomthingWithStruct (object theThing)
public void DoSomthingWithClass(object theThing)