Re: class opBinary overloading. value + null and null + value

[cal]

On Sunday, 21 October 2012 at 20:34:51 UTC, ref2401 wrote:

what should i do to make my binary operation commutative?

You can overload opBinaryRight:

MyClass opBinaryRight(string op: "+")(MyClass rhs)
{
   if (rhs is null)
   {
     return null;
   }
   MyClass result = new MyClass(value + rhs.value);
   return result;
}

http://dlang.org/operatoroverloading.html