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propensive's profile
Jon Pretty
Jon Pretty
Jon Pretty
@propensive

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Jon Pretty

@propensive

Supporting Scala through professional training and open-source software. Responsible for Magnolia, Fury, Scala World and Functional Africa.

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propensive.com
Joined July 2010

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    1. Jon Pretty‏ @propensive 4 Mar 2014

      NaN, Scala's "clever" == and autoboxing interact quite badly with each other. :(

      1 reply 0 retweets 0 likes
    2. ■ numerik‏ @d6 4 Mar 2014
      Replying to @propensive

      @propensive Yes.

      1 reply 0 retweets 0 likes
    3. Jon Pretty‏ @propensive 4 Mar 2014
      Replying to @d6

      @d6 And there was me assuming that Set(0.0/0.0, 0.0/0.0) would have one element, because boxing right? No.

      1 reply 0 retweets 0 likes
    4. Pedro Furlanetto‏ @pedrofurla 4 Mar 2014
      Replying to @propensive

      @propensive @d6 WAT? NaN != NaN ?

      2 replies 0 retweets 0 likes
    5. Rick Elrod‏ @relrod6 5 Mar 2014
      Replying to @pedrofurla

      @pedrofurla @propensive @d6 same in Haskell with Set.fromList [0.0/0.0, 0.0/0.0]. Yay IEEE!

      1 reply 0 retweets 0 likes
      Jon Pretty‏ @propensive 5 Mar 2014
      Replying to @relrod6

      @relrod6 @pedrofurla @d6 In Scala/Java, 0.0/0.0 != 0.0/0.0. Fine. But we also get Double.box(0.0/0.0) == Double.box(math.sqrt(-1.0)).

      4:22 AM - 5 Mar 2014 from New York, NY
      0 replies 0 retweets 0 likes

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