Haskellã§éãã³ã¼ããæ¸ãããã®ãã³ããç¡ç§©åºã«éç©ãããã®ãç°å¢ã¨ãã¦ã¯GHCãæ³å®ãããç§ã¯é«éåã«ã¤ãã¦è©³ãã訳ã§ã¯ãªãããæãä»ãããã¨ã¯ãªãã§ãããã§ãæ¸ãããã«å¿ãããã®ã§ãéãè¯ããã°ä½ãå½¹ã«ç«ã¤æ å ±ããããããããªãã 並åå¦çã®ããã©ã¼ãã³ã¹ã«ã¤ãã¦ã¯ãã®æç« ã§ã¯è§¦ããªããã¾ã£ããçµé¨ããªãã®ã§ãåãçç±ã§ãæµ®åå°æ°ç¹æ°ãå¤ç¨ããæ°å¤è¨ç®ã³ã¼ãã®å¹çåã¨ãæ¸ãæãè¦åãå¤ç¨ããé«æ°´æºã®æé©åãæ±ããªãã ãé¡ã: æä¸ã«ééããåããã«ããé¨åãããã°ææããã ããã¨æé£ãã§ããã¾ããä»ã«è¼ããæ¹ãè¯ããããªæé©åãã¯ããã¯ãããã®ä»ã®æ¹åææ¡ãããã°æãã¦ãã ãããæ²ç¤ºæ¿ã¾ãã¯ã¡ã¼ã«ã¾ãã¯Twitter(@mkotha)ã¾ã§ãé¡ããã¾ãã ç®æ¬¡ åºæ¬çãªã㨠é 延è©ä¾¡ã®è¨ç®éè¦ç©ããã®æ¹æ³ã¨ãGHCã®å é¨ã«ä¾åããªããã¯ããã¯éãå ¥éæ¸ãèªãã ããã©ããHaske
The significant changes to the various parts of the compiler are listed in the following sections. There have also been numerous bug fixes and performance improvements over the 6.12 branch. GHC now defaults to the Haskell 2010 language standard. Libraries are not quite so straightforward. By default, GHC provides access to the base package, which includes the Haskell 2010 libraries, albeit with a
Haskellã§ãã£ããããæ°ãè¨ç®ããã³ã¼ãã¨ãã¦ã次ã®ãã®ãæåã ã fib :: [Integer] fib = 1 : 1 : zipWith (+) fib (tail fib) ããã®nçªç®ã®è¦ç´ ãåå¾ããã³ã¼ããO(n^2)ãããé ãã¨ãããã¨ãææããè¨äºããã£ãã Haskellã®ãfib = 1:1:zipWith (+) fib (tail fib)ãã¯ã¨ã¦ãé ã - 西尾泰åã®ã¯ã¦ãªãã¤ã¢ãªã¼ å®ã¯ãã®ç¾è±¡ã¯ããªã¹ãfibãå é ããé çªã«ä½¿ã£ã¦ãã£ãå ´åã«ã¯èµ·ãããªãã(!!)ãªã©ã§ãªã¹ãã®éä¸ã®è¦ç´ ãåå¾ãã¦ããã®å¤ããããªãè©ä¾¡ããå ´åã«çºçããã以ä¸ãå®è¨¼ç¨ã³ã¼ãã {-# OPTIONS_GHC -O3 #-} import System.Environment(getArgs) -- æåã®fib fib :: [Integer] fib = 1:1:zi
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