On Jul 31, 2012, at 1:31 PM, Neil Toronto wrote:

> To reiterate after my absence: I won't write a typed math/vector until using 
> its exports in Typed Racket wouldn't be a huge friggin' PITA.


Let me rephrase this ever so gently. Typed Racket has failed at least one real 
test for now, namely, writing a highly usable math library. I think this is a 
fair judgment, and you are posing the obvious, not so implied problem to the TR 
maintainers to fix this problem. They should thank you on their knees, 
especially Vincent. 



> To offer a carrot instead of a stick: There could be a short paper in this, 
> titled "The Case for a Clean, Correct, Covariant Const".

That is what I was thinking as I was reading your message. I have not 
encountered such a proposal/language before, and I think it could be a really 
neat extension of Vincent's PADL work. Perhaps the two of you should work out 
the details together and submit follow-up to PADL n+1. Oh never mind, D stands 
for declarative. So ship it to ICFP next year, functional languages do include 
mutation. 

-- Matthias


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