null [re: spec#]

[Andrei Alexandrescu]

On 11/7/10 10:52 AM, bearophile wrote:
> so:
>
>> Fine having a nun-null type or ranged integer or special float
>> whatever in a language library, but asking a new syntax for it? Not
>> really.
>
> There's no way you may implement all the relative semantics in the D
> language. You and Andrei are wrong.
>
> Bye, bearophile

What's a relative semantics? And what was exactly the claim that was wrong?

Thanks,

Andrei