constexpr cardinality transform2_cardinality()

in include/range/v3/view/transform.hpp [42:51]

• 10 lines of code
• 10 McCabe index (conditional complexity)

            constexpr cardinality transform2_cardinality(cardinality c1, cardinality c2)
            {
                return c1 >= 0 || c2 >= 0 ?
                    (c1 >= 0 && c2 >= 0 ? (c1 < c2 ? c1 : c2) : finite) :
                    c1 == finite || c2 == finite ?
                        finite :
                        c1 == unknown || c2 == unknown ?
                            unknown :
                            infinite;
            }