Do you have usecases for opAssign?

[FeepingCreature]

On Friday, 29 June 2018 at 07:31:42 UTC, Eugene Wissner wrote:
> You can move only exactly the same type. with opAssign you can 
> assign a differnt type. So opAssign should forward assignment 
> to the underlying type if you assign nor Nullable!T nor T.

Sorry, that was unclear; I meant to ask for usecases for 
T::opAssign(T). Maybe the reason to allow this is just that it's 
a generalization of the actually useful T::opAssign(S), but I 
want to know if there's a specific usecase for calling 
specifically T::opAssign(T).