Lawo.EmberPlusSharp.Ember.EmberReader.Read7Bit C# (CSharp) Méthode

        private static int Read7Bit(ReadBuffer readBuffer)
        {
            var position = readBuffer.Position;
            readBuffer.Fill(1);
            byte currentByte;
            var result = 0;

            while (((currentByte = readBuffer[readBuffer.Index++]) & 0x80) > 0)
            {
                result |= currentByte & 0x7F;

                // - 1 accounts for the fact that we must not overwrite the sign bit by shifting in bits
                const int DiscardBitsMask =
                    Constants.AllBitsSetInt << (Constants.BitsPerInt - Constants.BitsPerEncodedByte - 1);

                if ((result & DiscardBitsMask) != 0)
                {
                    throw CreateEmberException(
                        "The identifier number or subidentifier at position {0} exceeds the expected range.", position);
                }

                result <<= Constants.BitsPerEncodedByte;
                readBuffer.Fill(1);
            }

            result |= currentByte;
            return result;
        }