1 import "JavaBuiltin" as Java
8 instance Additive Double where
11 instance Additive Integer where
14 instance (Additive a, Additive b) => Additive (a,b) where
15 (x1,y1) + (x2,y2) = (x1+x2,y1+y2)
17 main = (1.0::Double,3::Integer) + (2.0::Double,4::Integer)