iTextSharp.text.pdf.BarcodePDF417.MaxPossibleErrorLevel C# (CSharp) Метод

        protected static int MaxPossibleErrorLevel(int remain) {
            int level = 8;
            int size = 512;
            while (level > 0) {
                if (remain >= size)
                    return level;
                --level;
                size >>= 1;
            }
            return 0;
        }