Pchp.Library.Arrays.RangeOfLongInts C# (CSharp) Method

        private static PhpArray RangeOfLongInts(long low, long high, long step)
        {
            if (step == 0)
            {
                //PhpException.InvalidArgument("step", LibResources.GetString("arg:zero"));
                //return null;
                throw new ArgumentException();
            }

            if (step < 0) step = -step;

            PhpArray result = new PhpArray(unchecked((int)(Math.Abs(high - low) / step + 1)));

            if (high >= low)
            {
                for (int i = 0; low <= high; i++, low += step) result.Add(i, low);
            }
            else
            {
                for (int i = 0; low >= high; i++, low -= step) result.Add(i, low);
            }

            return result;
        }