Method document_element

3rdparty/pugixml/pugixml.cpp:7505–7514

	}

	PUGI__FN xml_node xml_document::document_element() const
	{
		assert(_root);

		for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
			if (PUGI__NODETYPE(i) == node_element)
				return xml_node(i);

		return xml_node();
	}

#ifndef PUGIXML_NO_STL
	PUGI__FN std::string PUGIXML_FUNCTION as_utf8(const pugi::wstring_view& str)