Create a set with custom hash and isequal

[stevengj]

@jlbosse

Is it possible to create a Set{MyType} that uses a custom hash and isequal functions

See:

Dictionary with custom hash function

Just wrap your keys in a new type: struct MyKey val::UInt end Base.hash(a::MyKey, h::UInt) = xor(a.val, h) Base.(==)(a::MyKey, b::MyKey) = a.val == b.val