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<
natrium1970 >
ocamlbrew-install wants to install ocaml-4.01.0, which is broken on Mac. Specifying -v 4.02.0 does not seem to have an effect.
03:24
<
warrick >
beginner looking for examples of idiomatic usages of Option types
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<
warrick >
they are really munging my code
03:25
<
_tac >
warrick: they do tend to infest your code when you start writting deeply-nested, failure-prone code
03:26
<
_tac >
If you're doing prototyping, use exceptions instead.
03:26
<
_tac >
But know what you're doing is morally wrong :)
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<
warrick >
_tac: Ha, I am trying for assimilation. Must resist
03:31
<
warrick >
Date.to_string (Option.get (List.reduce dates min))
03:32
<
_tac >
It's just a simple fact that accounting for EVERY possible case, even in pure code (ignoring memory exhaustion, hardware failures, and IO failures) is going to be harder than pretending that the code always takes the path you want it to
03:32
<
warrick >
but Core seems to omit, Option.get
03:32
<
warrick >
is there a "monadic" way to do this more elegantly?
03:33
<
_tac >
in ocaml, I'm not the guy to ask :X
03:34
<
warrick >
seems like there should be a way to go from some date -> some string better, humph
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<
_tac >
You could do things unsafely, then have an exception handler which just returns None
03:37
<
warrick >
yeah, i might just resort to the more verbose pattern matching
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<
natrium1970 >
In the past, I have installed ocaml manually first then opam. opam does not like bootstrapping itself with ocmalbrew.
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<
natrium1970 >
Opam does not build for me. I searched online and found other reports about this, but no solution. The result of ‘make’ is
http://pastebin.com/B1t3VW8B
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<
natrium1970 >
Installing opam systemwide seems impossible
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14:43
<
Drup >
warrick: use both exception and option, depending on the task
14:43
<
Drup >
exception is not "wrong", it's just not always right
14:44
<
Drup >
You should look at the Result module too
14:45
<
Drup >
(don't be a purity fanatic, it's not going to do you any good :p)
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<
warrick >
Drup: thanks, after the fact I realize that a little imperative programming and using the _exn's would have saved me a couple hours
17:55
<
warrick >
working with file input anyways, no need be fancy
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