iTextSharp.text.pdf.codec.TIFFFaxDecoder.UpdatePointer C# (CSharp) Method

        private void UpdatePointer(int bitsToMoveBack) {
            int i = bitPointer - bitsToMoveBack;
            
            if (i < 0) {
                bytePointer--;
                bitPointer = 8 + i;
            } else {
                bitPointer = i;
            }
        }