text: public override string ToString(){string[] units = new string[] { "bytes", "KiB", "MiB", "GiB" };long sz = GetIndexSize();int u = 0;while (1024 <= sz && u < units.Length - 1){int rem = (int)(sz % 1024);sz /= 1024;if (rem != 0){sz++;}u++;}return "DeltaIndex[" + sz + " " + units[u] + "]";}