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r-west id:r-west

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r-west 2012/12/06
haskell

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ã²ã•ã—ã¶ã‚Šã® Haskell ãƒã‚¿ 2011/12/13 è¿½è¨˜ä¸‹ã®ä¾‹ã§ app.cabal ã®è¨å®šã‚„ Setup.hs ã®è¨˜è¿°ãªã©ã®æƒ…å ±ãŒå¤ã‹ã£ãŸã®ã§ï¼Œã“ã¡ã‚‰ã‚‚ä¸€èªã—ã¦ãã ã•ã„ â†’ BDD on Haskell ãƒãƒ¥ãƒ¼ãƒˆãƒªã‚¢ãƒ« ãã®0 çµŒç·¯Haskell ã§ãã‚Œãªã‚Šã®ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’æ›¸ã„ã¦ã¿ã‚ˆã†ã¨ã—ãŸã®ã§ï¼ŒHUnit ã‚„ QuickCheck ã‚’ä½¿ã£ã¦ BDD ã§ã‚„ã‚ã†ã¨ã—ãŸã®ã ã‘ã©ï¼ŒHow to write a Haskell program ä»¥ä¸Šã®äº‹ã‚’èª°ã‚‚æ›¸ã„ã¦ãªã„ã—ï¼ŒHUnit ã‚„ QuickCheck ã®å®Ÿä¾‹ã‚’æ›¸ã„ãŸæ—¥æœ¬èªžåœã®ãƒ–ãƒã‚°è¨˜äº‹ã‚‚ï¼Œãã®å˜ä½“ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã®ãƒ†ã‚¹ãƒˆã®ã¿æ›¸ã„ã¦ã„ã¦ï¼Œè‚å¿ƒã®å…¨ä½“ãƒ†ã‚¹ãƒˆã‚’é€šã—ã§å®Ÿè¡Œã™ã‚‹ãªã©ã®ãƒã‚¿ãŒæ›¸ã‹ã‚Œã¦ã„ãªã„ï¼Ž ã˜ã‚ƒã‚å®Ÿéš›ã«å…¬é–‹ã—ã¦ã‚‹ãƒªãƒã‚¸ãƒˆãƒªã§ã‚‚è¦‹ã¦ã¿ã‚‹ã‹ã¨æ€ã„ï¼Œpatchtag ã‚’è¦‹ã¦ã‚‚ä»Šåº¦ã¯å…¬é–‹ã—ã¦ã‚‹äººã®æ®†ã©ãŒãƒ†ã‚¹ãƒˆæ›¸ãã¨ã‹ã—ã¦ãªã‹ã£ãŸï¼ŽHaskel
r-west 2011/12/13
haskell

test

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Debug.Trace ã‚’ä½¿ã† nobsun(2007/07/04 10:53:31 JST) Haskellã§ã‚‚printfãƒ‡ãƒãƒƒã‚°ã®ã‚ˆã†ãªã“ã¨ã‚’ã—ãŸã„ã“ã¨ãŒã‚ã‚‹ï¼Žã“ã®ã¨ã Debug.Trace ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã«ã‚ã‚‹ trace ã¨ã„ã†é–¢æ•°ãŒä¾¿åˆ©ã§ã‚ã‚‹ï¼Ž trace :: String -> a -> a ã“ã®é–¢æ•°ã¯å€¤ã¨ã—ã¦ã¯ç¬¬äºŒå¼•æ•°ã‚’ãã®ã¾ã¾è¿”ã™é–¢æ•°ãªã®ã ãŒï¼Œãã®å€¤ãŒè©•ä¾¡ã• ã‚ŒãŸã¨ãã«ã‚³ãƒ³ã‚½ãƒ¼ãƒ«ã«ç¬¬ä¸€å¼•æ•°ã§ä¸ŽãˆãŸæ–‡å—åˆ—ã‚’è¡¨ç¤ºã™ã‚‹ã¨ã„ã†ã®ã®ã§ã‚ã‚‹ï¼Ž ãŸã¨ãˆã°ï¼Œ add :: Int -> Int -> Int add x y = trace "'add' called" (x + y) ã¨å®šç¾©ã—ã¦ add 1 (2*3) ã‚’è©•ä¾¡ã™ã‚‹ã¨ *Main> 1 + add 2 (3*4) 'add' called 15 ã¨ãªã‚‹ï¼Ž ã‚¸ãƒ§ã‚¤ãƒ³ãƒˆã«ãªãŒã‚Œã‚‹ãƒ‡ãƒ¼ã‚¿ã‚’è¦‹ã‚‹ Haskellã®ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã§ã¯
r-west 2007/07/24
haskell

tips

test
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r-west 2007/07/20
haskell

test

tool

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r-west 2006/10/15
haskell

test

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tips

tutorial
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r-west 2006/10/12
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programming

haskell

test

tool
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