protected override IOperand ConvertToString()
 {
     return(new StringOperand(ValueAsInteger.ToString(CultureInfo.InvariantCulture)));
 }
        public override int Compare(PrimitiveOperand rhs)
        {
            int iRhs = ((IntegerOperand)rhs).ValueAsInteger;

            return(ValueAsInteger.CompareTo(iRhs));
        }