What wrong did i do? (key in hashtable is always null)

[The Anh Tran]

grauzone wrote:
> Is your opCmp/toHash really called? Maybe the function signature is off, 
> and dmd doesn't "find" the function. Just a guess, I don't really know 
> how this D2 stuff works.

toHash + opCmp are called.
The awkward is that, most of those functions are copied & pasted from C. 
They work perfectly.

I suspect that it is a bug. I would like to know if someone else meet 
the same problem.