Why does D not have generics?

[Ola Fosheim Grøstad]

On Friday, 15 January 2021 at 17:25:59 UTC, Paulo Pinto wrote:
> If it is instantiated T = void* then it would only be safe to 
> use with pointers anyway, thus using T = object would be an 
> option.

That's a minor detail though.

Overall, as long at D is based on GC I guess type erasure should 
be done by the compiler for traceable pointers. Maybe I'll try 
again for pointer-free libraries. Basically treating sequences of 
bytes as values.

For instance,  you don't really need to compare keys as double, 
int or chars. You might as well compare them as 4 byte, 8 byte 
etc sequences.

So for a B+tree you could use the same implementation for all 
kinds of key types.