Make enum auto castable

[Mike B Johnson via Digitalmars-d-learn]

On Sunday, 4 June 2017 at 23:39:11 UTC, Jonathan M Davis wrote:
> On Sunday, June 04, 2017 22:52:55 Mike B Johnson via 
> Digitalmars-d-learn wrote:
>> [...]
>
> Aside from whatever implicit conversions are built into the 
> language, the only way to define an implicit conversion in D is 
> via alias this on a user-defined type, which then tells that 
> type that it can convert to whatever type the result of the 
> alias this is. e.g. if you have
>
> [...]

I might be able to change the enum, I assume you mean something 
like

enum myenum : S { }

where S is the struct that implicitly converts?