Function FirstChildElement

deps/tinyxml2/include/tinyxml2/tinyxml2.h:776–778

    const XMLElement* FirstChildElement( const char* name = 0 ) const;

    XMLElement* FirstChildElement( const char* name = 0 )	{
        return const_cast<XMLElement*>(const_cast<const XMLNode*>(this)->FirstChildElement( name ));
    }

    /// Get the last child node, or null if none exists.
    const XMLNode*	LastChild() const						{