Why doesn't to!MyEnumType(42) work

[Christophe Travert]

"Era Scarecrow" , dans le message (digitalmars.D:172568), a écrit :
> On Monday, 16 July 2012 at 21:59:17 UTC, Tommi wrote:
>> On Monday, 16 July 2012 at 20:22:12 UTC, Era Scarecrow wrote:
>>> MyEnumType y = cast(MyEnumType) 42; //Error: wtf is 42 anyways?
>>
>> Like the previous fellow said, it's not an error.
> 
>   I had the impression it was illegal by the compiler; Logically 
> forcing an enum to an invalid state is probably undefined and 
> unstable (but casting with compile-time constant that's provably 
> correct would be different). Also I've never tried force casting 
> the enums, so.. Hmmm...
> 
>   I suppose 'use at your own risk' applies here.

For what it's worth, I think cast should be at your own risk, and 
to!MyEnumType should assert the enum is valid.