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Donn Cave  
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 More options Feb 17 2008, 12:56 pm
Newsgroups: fa.haskell
From: Donn Cave <d...@avvanta.com>
Date: Sun, 17 Feb 2008 17:56:49 UTC
Local: Sun, Feb 17 2008 12:56 pm
Subject: Re: [Haskell-cafe] Re: Doubting Haskell
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On Feb 17, 2008, at 1:12 AM, Colin Paul Adams wrote:

> And left is not the opposite of correct. That would be incorrect.

> Also, it is not clear to me that a failure to read a file (for
> instance) is incorrect behaviour. If the file doesn't exist, then I
> think it ought to be considered correct behaviour to fail to read the
> file.

Well, of course correct behavior is to cope with both cases in
the most appropriate way.

If it's any consolation to those of the left handed persuasion, I  
guessed
it wrong - I have used Either in this way, but Left was Success and
Right was Failure.  I don't enjoy puns, and mapped to an A/B form
it seemed obvious that Success is A.

        Donn Cave, d...@avvanta.com
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