Function ClearBuffer

deps/tinyxml2/include/tinyxml2/tinyxml2.h:2297–2301

If in print to memory mode, reset the buffer to the beginning. */

    	beginning.
    */
    void ClearBuffer( bool resetToFirstElement = true ) {
        _buffer.Clear();
        _buffer.Push(0);
		_firstElement = resetToFirstElement;
    }

protected:
	virtual bool CompactMode( const XMLElement& )	{ return _compactMode; }