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_perform... 3. https://vimeo.com/109613639 4. http://www.reddit.com/r/haskell/comments/2jwwlj/video_games_in_haskell_chips... 5. http://neilmitchell.blogspot.it/2014/10/hlint-now-spots-bad-unsafeperformio.... 6. http://www.reddit.com/r/haskell/comments/2jsa4c/hlint_now_spots_bad_unsafepe... 7. http://math.andrej.com/2007/09/28/seemingly-impossible-functional-programs/ 8. http://www.reddit.com/r/haskell/comments/2k0xg2/seemingly_impossible_functio... 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_d... 11. http://gfycat.com/WearyAnguishedIggypops 12. http://www.reddit.com/r/haskell/comments/2k51kk/flocking_behaviour_simulatio... 13. http://www.reddit.com/r/haskell/comments/2kbnzw/finished_reading_learn_you_a... 14. http://www.reddit.com/r/haskell/comments/2kbnzw/finished_reading_learn_you_a... 15. http://www.reddit.com/r/haskell/comments/2jvc78/simple_haskell_irc_client_in... 16. http://www.reddit.com/r/haskell/comments/2jvc78/simple_haskell_irc_client_in... 17. http://looprecur.com/blog/gpu-programming-in-haskell/ 18. http://www.reddit.com/r/haskell/comments/2jp9y9/gpu_programming_in_haskell_v... 19. http://www.reddit.com/r/haskell/comments/2k93sm/are_there_any_good_game_engi... 20. http://www.reddit.com/r/haskell/comments/2k93sm/are_there_any_good_game_engi... 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-depen... 24. http://stackoverflow.com/questions/26524223/how-should-i-read-this-ghc-core-... 25. http://stackoverflow.com/questions/26538595/more-efficient-type-level-comput... 26. http://stackoverflow.com/questions/26568262/how-to-make-fmap-rewrite-rules-f... 27. http://stackoverflow.com/questions/26449154/a-workaround-for-the-template-ha... 28. http://stackoverflow.com/questions/26520261/transform-a-a-maybe-a-to-take-an... 29. http://stackoverflow.com/questions/26515102/making-numeric-functions-an-inst... 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