[julia-users] Re: customized hash function (or equality function)?

[Steven G. Johnson]

Base.hash(p::Poly1, h::Uint) = hash(p.coef, h)
Base.(==)(p1::Poly1, p2::Poly2) = p1.coef == p2.coef

(If you override hash you should always override == to be consistent, and 
vice versa.)