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[Caml-list] [Q]: Co(ntra)variance and subtyping?
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| Date: | -- (:) |
| From: | Markus Mottl <markus@o...> |
| Subject: | Re: [Caml-list] Re: variance, subtyping and monads... oh, my! |
Andreas Rossberg schrieb am Montag, den 19. November 2001: > Maybe. I don't often use monads myself, so I am by no means an expert, > but there are quite some useful applications, even outside the realm of > lazy evaluation and purely functional languages. Examples are > encapsulating state, failure, non-determinism, etc. I think Markus Mottl > posted an OCaml example of a simple monadic evaluator some time ago. Yes, you can get it here (called "IMP"): http://www.ai.univie.ac.at/~markus/home/ocaml_sources.html It compares interpretation of a simple imperative language in monadic style to explicit state passing. As was already mentioned, the lack of overloading doesn't make monads as convenient as in Haskell. Regards, Markus Mottl -- Markus Mottl markus@oefai.at Austrian Research Institute for Artificial Intelligence http://www.oefai.at/~markus ------------------- Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/ To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr