Question

I need help for a problem in my application.
In my application , I need to use double.NotANumber when I make Default(T) and the type of my generic is double. But what I get is “0.0”.
Is they a way to get the value I need????

Answer 1

No. default(double) will always be 0, and there’s nothing you can do to change that.

The closest you could come would be to write a separate static method:

public static T GetDefaultValue<T>()
{
    return typeof(T) == typeof(double) ? (T)(object) double.NaN : default(T);
}

You’d then need to call that method instead of using default(T). It’s pretty nasty though 🙁