February 2015 - ghc-tickets

Re: [GHC] #7424: Add Data.Bits instance for Bool
by GHC 06 Feb '15

06 Feb '15

#7424: Add Data.Bits instance for Bool -------------------------------------+------------------------------------- Reporter: Aninhumer | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: libraries/base | Version: 7.6.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by hvr): * cc: hvr, ekmett (added) * status: closed => new * resolution: wontfix => Comment: This was proposed to the libraries list, see http://permalink.gmane.org/gmane.comp.lang.haskell.libraries/20663 and passed -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7424#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7425: Add method to Data.Bits for creating zeroed values.
by GHC 06 Feb '15

06 Feb '15

#7425: Add method to Data.Bits for creating zeroed values. -------------------------------------+------------------------------------- Reporter: Aninhumer | Owner: Type: feature request | Status: closed Priority: normal | Milestone: 7.8.1 Component: libraries/base | Version: 7.6.1 Resolution: fixed | Keywords: report- Operating System: Unknown/Multiple | impact Type of failure: None/Unknown | Architecture: Blocked By: | Unknown/Multiple Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by hvr): * status: new => closed * resolution: => fixed -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7425#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7425: Add method to Data.Bits for creating zeroed values.
by GHC 06 Feb '15

06 Feb '15

#7425: Add method to Data.Bits for creating zeroed values. -------------------------------------+------------------------------------- Reporter: Aninhumer | Owner: Type: feature request | Status: new Priority: normal | Milestone: 7.8.1 Component: libraries/base | Version: 7.6.1 Resolution: | Keywords: report- Operating System: Unknown/Multiple | impact Type of failure: None/Unknown | Architecture: Blocked By: | Unknown/Multiple Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by hvr): * cc: hvr, ekmett (added) * keywords: => report-impact * status: closed => new * resolution: wontfix => * milestone: => 7.8.1 Comment: This was discussed on the libraries list, http://permalink.gmane.org/gmane.comp.lang.haskell.libraries/21157 and https://www.haskell.org/pipermail/libraries/2014-March/022285.html and was finally implemented via 65d78ddf1fd58adea6e7cbc461a5683c9ad1f4cc -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7425#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7077: Add an order-reversing newtype to Data.Ord
by GHC 06 Feb '15

06 Feb '15

#7077: Add an order-reversing newtype to Data.Ord -------------------------------------+------------------------------------- Reporter: Azel | Owner: pcapriotti Type: feature request | Status: closed Priority: normal | Milestone: 7.6.1 Component: libraries/base | Version: Resolution: fixed | Keywords: ord Operating System: Unknown/Multiple | report-impact Type of failure: None/Unknown | Architecture: Blocked By: | Unknown/Multiple Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by hvr): * cc: hvr, ekmett (added) * keywords: ord => ord report-impact -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7077#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9099: Add strict fmap
by GHC 06 Feb '15

06 Feb '15

#9099: Add strict fmap -------------------------------------------+------------------------------- Reporter: quchen | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: None | Version: 7.8.2 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Easy (less than 1 hour) | Type of failure: Blocked By: | None/Unknown Related Tickets: | Test Case: | Blocking: -------------------------------------------+------------------------------- Add a strict version of fmap to the standard libraries. {{{ infixl 4 <$!> (<$!>) :: Monad m => (a -> b) -> m a -> m b f <$!> m = do x <- m return $! f x {-# INLINE (<$!>) #-} }}} Libraries discussions: Take 1: http://www.haskell.org/pipermail/libraries/2013-November/021728.html Take 3: http://www.haskell.org/pipermail/libraries/2014-April/022864.html -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9099> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #10066: Cross compiling from Linux to Windows fails
by GHC 06 Feb '15

06 Feb '15

#10066: Cross compiling from Linux to Windows fails -------------------------------------+------------------------------------- Reporter: erikd | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Compiler | Version: 7.10.1-rc2 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: Building GHC Unknown/Multiple | failed Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | -------------------------------------+------------------------------------- Building from git HEAD (daed18c35cda1) and configuring with: {{{ ./configure --target=i686-w64-mingw32 }}} The build then fails with: {{{ utils/hsc2hs/dist/build/Main.o: In function `c4tf_info': (.text+0x80a): undefined reference to `GetModuleFileNameW' }}} but earlier on there was other suspicious output like: {{{ utils/hsc2hs/Main.hs:234:1: Warning: the 'stdcall' calling convention is unsupported on this platform, treating as ccall When checking declaration: foreign import stdcall unsafe "static windows.h GetModuleFileNameW" c_GetModuleFileName :: Ptr () -> CWString -> Word32 -> IO Word32 }}} which suggests that the cross tool chain is not being used. However, the configure process did indeed find the right cross compilers and linkers. From the configure output: {{{ Building GHC version : 7.11.20150204 Git commit id : daed18c35cda114d8a5303bcb645195e1fd397e3 Build platform : x86_64-unknown-linux Host platform : x86_64-unknown-linux Target platform : i386-unknown-mingw32 Bootstrapping using : /usr/bin/ghc which is version : 7.8.3 Using gcc : /usr/bin/i686-w64-mingw32-gcc which is version : 4.9.2 Building a cross compiler : YES cpp : /usr/bin/i686-w64-mingw32-gcc cpp-flags : -E -undef -traditional ld : /usr/bin/i686-w64-mingw32-ld -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10066> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8796: -ddump-splices prints to error stream
by GHC 05 Feb '15

05 Feb '15

#8796: -ddump-splices prints to error stream -------------------------------------------+------------------------------- Reporter: jstolarek | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.9 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Easy (less than 1 hour) | Type of failure: Blocked By: | None/Unknown Related Tickets: | Test Case: | Blocking: -------------------------------------------+------------------------------- I just noticed that unlike other dump flags, `-ddump-splices` dumps to the error stream. I don't think this difference in behaviour is intended. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8796> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #9385, #9586, #9588, #9590, #9664, #9816, #10039
by GHC 05 Feb '15

05 Feb '15

Batch modification to #9385, #9586, #9588, #9590, #9664, #9816, #10039 by hvr: keywords to report-impact -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=9385%2C9586%2C9588%2C9590%2C9664%2…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] Batch modify: #7530, #8302, #9008, #9016, #9531, #9532, #9550
by GHC 05 Feb '15

05 Feb '15

Batch modification to #7530, #8302, #9008, #9016, #9531, #9532, #9550 by hvr: keywords to report-impact -- Tickets URL: <http://ghc.haskell.org/trac/ghc/query?id=7530%2C8302%2C9008%2C9016%2C9531%2…> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9004: Add sortOn function to Data.List
by GHC 05 Feb '15

05 Feb '15

#9004: Add sortOn function to Data.List -------------------------------------------+------------------------------- Reporter: JohnWiegley | Owner: Type: feature request | Status: new Priority: normal | Milestone: 7.10.1 Component: libraries/base | Version: 7.8.2 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Easy (less than 1 hour) | Type of failure: Blocked By: | None/Unknown Related Tickets: | Test Case: | Blocking: -------------------------------------------+------------------------------- The following passed for two weeks on the libraries mailing list without any dissenting votes. The request is to add the following function to Data.List: {{{ -- | Sort a list by comparing the results of a key function applied to each -- element. @sortOn f@ is equivalent to @sortBy . comparing f@, but has the -- performance advantage of only evaluating @f@ once for each element in the -- input list. This is called the decorate-sort-undecorate paradigm, or -- Schwartzian transform. sortOn :: Ord b => (a -> b) -> [a] -> [a] sortOn f = map snd . sortBy (comparing fst) . map (\x -> let y = f x in y `seq` (y, x)) }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9004> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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