[Haskell-cafe] FiniteMap-like module for unordered keys?

Jorge Adriano Aires jadrian at mat.uc.pt
Tue Nov 9 18:41:49 EST 2004


> A hash-table becomes rather useless without mutable state AFAICS.
> Without it, one might almost just as well use a list of pairs...

Could you please elaborate? Is there motive why an Hash Table, implemented as 
FiniteMap of Lists, for instance, wouldn't be worth to using over a simple 
List? (This wouldn't help G. Klyne of course). I've always wondered why a 
non-monadic version of is not provided in the GHC libs... 


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