Given the class Rectangle below $($assume the public functions are defined elsewhere$),$ what code will give a compiler error if used in XXX$?$

class Rectangle $\{$

$$public:

$$ Rectangle$()$;

$$ Rectangle$($int length, int height$)$;

$$ void SetLength$($int$)$;

$$ void SetHeight$($int$)$;

$$private:

$$ int length;

$$ int height;

$\}$;

int main$()\{$

$$Rectangle rect;

$$XXX

$\}$