Cameleon: Stricter Alternative Implementation of VariantN

[Nordlöw via Digitalmars-d-learn]

On Tuesday, 22 September 2015 at 12:54:47 UTC, Kagamin wrote:
> You can generate a union from allowed types, it will make 
> copies type safe too, sort of set!(staticIndexOf(T, 
> AllowedTypes))(rhs)... hmm... can it be an overload?

I believe there is a trait somewhere that figures out the maximum 
alignment needed for a set/union of types. I think Walter spoke 
about in a DConf lecture some time ago.