Safer casts

[Bill Baxter]

Janice Caron wrote:
> 
>>  This is why C++ is adding the
>>  notion of concepts (which facilitate compile time OOP)
> 
> So is D. Shall we take bets on which language gets them first, or in
> which language they will be most powerful?

Is it?  If so that's great.  Last comment I recall from Walter on the 
subject was that he believed D already had something as good as 
concepts.  I can't recall what it was exactly -- IIRC he said something 
like D doesn't need concepts because it has "static if".  I can't seem 
to find the thread where he said that, though.

--bb