(j3.2006) derived types with type parameters are different

[Robert Corbett]

Bill Long wrote:
> 
> 
> Robert Corbett wrote:
> 
>>
>> Are there any compilers that implement parameterized derived types
>> yet?
> 
> 
> Yes, and I would expect that some that don't have at least gotten past 
> the design stage.  The feature is a pain to implement, so resistance to 
> doing it over a different way will be very high.

So how do those impleentations handle type equivalence?

Bob Corbett