Question

Related question: Accessing a Class property without using dot operator

I’ve created a class called MyDouble looks like this

class MyDouble
{
  double value;
  //overloaded operators and methods
}

I am able to do all kinds of operations on MyDouble. Examples:

MyDouble a = 5.0;
a += 3.0;
...etc

However, this still throws an error

MyDouble a = 5.0;
long b = (Int64)a;  //error
long b = (int64)a.value; //works

How can I define it such that an operation like (Int64)a automatically converts to (Int64)a.value ? I don’t want the user to ever have to worry about the existence of the value property.

Answer 1

In order for this conversion to work, you would need an explicit conversion to Int64.

This would look like:

class MyDouble
{
    double value;

    public static explicit operator Int64(MyDouble value)
    {
         return (Int64)value.value;
    }
}