System.IO.StreamWriter.Init C# (CSharp) Method

        private void Init(Stream streamArg, Encoding encodingArg, int bufferSize, bool shouldLeaveOpen)
        {
            _stream = streamArg;
            _encoding = encodingArg;
            _encoder = _encoding.GetEncoder();
            if (bufferSize < MinBufferSize)
            {
                bufferSize = MinBufferSize;
            }

            _charBuffer = new char[bufferSize];
            _byteBuffer = new byte[_encoding.GetMaxByteCount(bufferSize)];
            _charLen = bufferSize;
            // If we're appending to a Stream that already has data, don't write
            // the preamble.
            if (_stream.CanSeek && _stream.Position > 0)
            {
                _haveWrittenPreamble = true;
            }

            _closable = !shouldLeaveOpen;
        }