iTextSharp.text.pdf.BarcodePDF417.ByteCompaction6 C# (CSharp) Метод

        protected void ByteCompaction6(int start) {
            int length = 6;
            int ret = cwPtr;
            int retLast = 4;
            int ni, k;
            cwPtr += retLast + 1;
            for (k = 0; k <= retLast ; ++k)
                codewords[ret + k] = 0;
            length += start;
            for (ni = start; ni < length; ++ni) {
                // multiply by 256
                for (k = retLast; k >= 0; --k)
                    codewords[ret + k] *= 256;
                // add the digit
                codewords[ret + retLast] += (int)text[ni] & 0xff;
                // propagate carry
                for (k = retLast; k > 0; --k) {
                    codewords[ret + k - 1] += codewords[ret + k] / 900;
                    codewords[ret + k] %= 900;
                }
            }
        }