[Haskell] Haskell Weekly News: Issue 311

Daniel Santa Cruz dstcruz at gmail.com
Thu Oct 30 03:25:46 UTC 2014 

Welcome to issue 311 of the HWN, an issue covering crowd-sourced bits
of information about Haskell from around the web. This issue covers
from October 19 to 25, 2014

Quotes of the Week

   * trap_exit: isn't darcs this haskell powered quantum physics
     simulator that happens to also keep revisions of files?

Top Reddit Stories

   * "GHC uses GMP, and its performance is nothing short of extraordinary.
     GHC is clearly tuned to call into GMP with extremely low overheads."
     Domain: wilfred.me.uk, Score: 79, Comments: 26
     Original: [1] http://goo.gl/n6tXA3
     On Reddit: [2] http://goo.gl/zTH1v5

   * Video games in Haskell: Chips Challenge demo
     Domain: vimeo.com, Score: 73, Comments: 22
     Original: [3] http://goo.gl/EyUQ6t
     On Reddit: [4] http://goo.gl/8Lrj3I

   * HLint now spots bad unsafePerformIO
     Domain: neilmitchell.blogspot.it, Score: 56, Comments: 29
     Original: [5] http://goo.gl/sxFywP
     On Reddit: [6] http://goo.gl/nA0rvs

   * Seemingly impossible functional programs
     Domain: math.andrej.com, Score: 56, Comments: 15
     Original: [7] http://goo.gl/gtXO9
     On Reddit: [8] http://goo.gl/XdTGd7

   * New blog post: "Quasi-quoting DSLs for free"
     Domain: well-typed.com, Score: 55, Comments: 2
     Original: [9] http://goo.gl/QbblTr
     On Reddit: [10] http://goo.gl/hv43hU

   * Flocking behaviour simulation written using helm. Source in comments.
     Domain: gfycat.com, Score: 46, Comments: 9
     Original: [11] http://goo.gl/MegczW
     On Reddit: [12] http://goo.gl/aKma9A

   * Finished reading Learn You a Haskell, please recommend me book number
2:
     Domain: self.haskell, Score: 41, Comments: 24
     Original: [13] http://goo.gl/uQiplX
     On Reddit: [14] http://goo.gl/uQiplX

   * Simple Haskell IRC client in "two lines of code"
     Domain: self.haskell, Score: 40, Comments: 62
     Original: [15] http://goo.gl/7SQpZL
     On Reddit: [16] http://goo.gl/7SQpZL

   * GPU Programming in Haskell (video)
     Domain: looprecur.com, Score: 36, Comments: 0
     Original: [17] http://goo.gl/7N0rgb
     On Reddit: [18] http://goo.gl/kjuFle

   * Are there ANY good game engines for haskell?
     Domain: self.haskell, Score: 33, Comments: 38
     Original: [19] http://goo.gl/6ugfSM
     On Reddit: [20] http://goo.gl/6ugfSM

   * Darcs turns 12
     Domain: hub.darcs.net, Score: 30, Comments: 8
     Original: [21] http://goo.gl/tnNsyR
     On Reddit: [22] http://goo.gl/DXIYyW

Top StackOverflow Questions

   * Dependent Types: How is the dependent pair type analogous to a
     disjoint union?
     votes: 20, answers: 6
     Read on SO: [23] http://goo.gl/HOSXJO

   * How should I read this GHC Core “proof”?
     votes: 11, answers: 0
     Read on SO: [24] http://goo.gl/3btTZT

   * more efficient type-level computations using type families?
     votes: 11, answers: 0
     Read on SO: [25] http://goo.gl/LHYecG

   * How to make fmap rewrite rules fire?
     votes: 10, answers: 1
     Read on SO: [26] http://goo.gl/JrjnJH

   * A workaround for the “Template Haskell + C” bug?
     votes: 8, answers: 1
     Read on SO: [27] http://goo.gl/q9sIHZ

   * Transform a -> a -> Maybe a to take any combination of a's and Maybe
a's
     votes: 8, answers: 2
     Read on SO: [28] http://goo.gl/AS4kC0

   * Making numeric functions an instance of Num?
     votes: 7, answers: 2
     Read on SO: [29] http://goo.gl/6uNuWB

   * Inverting a Type Family
     votes: 7, answers: 2
     Read on SO: [30] http://goo.gl/18XHro

   * FRP frameworks and IO
     votes: 7, answers: 1
     Read on SO: [31] http://goo.gl/BbEWOM

   Until next time,
   [32]+Daniel Santa Cruz

References

   1.
http://www.wilfred.me.uk/blog/2014/10/20/the-fastest-bigint-in-the-west/
   2.
http://www.reddit.com/r/haskell/comments/2jt37u/ghc_uses_gmp_and_its_performance_is_nothing_short/
   3. https://vimeo.com/109613639
   4.
http://www.reddit.com/r/haskell/comments/2jwwlj/video_games_in_haskell_chips_challenge_demo/
   5.
http://neilmitchell.blogspot.it/2014/10/hlint-now-spots-bad-unsafeperformio.html
   6.
http://www.reddit.com/r/haskell/comments/2jsa4c/hlint_now_spots_bad_unsafeperformio/
   7.
http://math.andrej.com/2007/09/28/seemingly-impossible-functional-programs/
   8.
http://www.reddit.com/r/haskell/comments/2k0xg2/seemingly_impossible_functional_programs/
   9. http://www.well-typed.com/blog/2014/10/quasi-quoting-dsls/
  10.
http://www.reddit.com/r/haskell/comments/2jowjc/new_blog_post_quasiquoting_dsls_for_free/
  11. http://gfycat.com/WearyAnguishedIggypops
  12.
http://www.reddit.com/r/haskell/comments/2k51kk/flocking_behaviour_simulation_written_using_helm/
  13.
http://www.reddit.com/r/haskell/comments/2kbnzw/finished_reading_learn_you_a_haskell_please/
  14.
http://www.reddit.com/r/haskell/comments/2kbnzw/finished_reading_learn_you_a_haskell_please/
  15.
http://www.reddit.com/r/haskell/comments/2jvc78/simple_haskell_irc_client_in_two_lines_of_code/
  16.
http://www.reddit.com/r/haskell/comments/2jvc78/simple_haskell_irc_client_in_two_lines_of_code/
  17. http://looprecur.com/blog/gpu-programming-in-haskell/
  18.
http://www.reddit.com/r/haskell/comments/2jp9y9/gpu_programming_in_haskell_video/
  19.
http://www.reddit.com/r/haskell/comments/2k93sm/are_there_any_good_game_engines_for_haskell/
  20.
http://www.reddit.com/r/haskell/comments/2k93sm/are_there_any_good_game_engines_for_haskell/
  21. http://hub.darcs.net/darcs/darcs-screened/patch/20021020200105-e9342
  22. http://www.reddit.com/r/haskell/comments/2jsvnd/darcs_turns_12/
  23.
http://stackoverflow.com/questions/26542350/dependent-types-how-is-the-dependent-pair-type-analogous-to-a-disjoint-union
  24.
http://stackoverflow.com/questions/26524223/how-should-i-read-this-ghc-core-proof
  25.
http://stackoverflow.com/questions/26538595/more-efficient-type-level-computations-using-type-families
  26.
http://stackoverflow.com/questions/26568262/how-to-make-fmap-rewrite-rules-fire
  27.
http://stackoverflow.com/questions/26449154/a-workaround-for-the-template-haskell-c-bug
  28.
http://stackoverflow.com/questions/26520261/transform-a-a-maybe-a-to-take-any-combination-of-as-and-maybe-as
  29.
http://stackoverflow.com/questions/26515102/making-numeric-functions-an-instance-of-num
  30. http://stackoverflow.com/questions/26541893/inverting-a-type-family
  31. http://stackoverflow.com/questions/26560100/frp-frameworks-and-io
  32. https://plus.google.com/105107667630152149014/about
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