February 2007 - Hugs-Bugs

[Hugs] #54: INTERNAL ERROR: build
by Hugs 24 Jul '07

24 Jul '07

#54: INTERNAL ERROR: build --------------------------+------------------------------------------------- Reporter: guest | Owner: nobody Type: defect | Status: new Priority: major | Milestone: Component: build system | Version: current Keywords: | --------------------------+------------------------------------------------- Main> fvsp 450 INTERNAL ERROR: build Please report this Hugs bug to http://hackage.haskell.org/trac/hugs //code pots :: Num a => a -> [a] pots x = scanl (*) 1 (repeat x) factoriales :: [Integer] factoriales = scanl (*) 1 [1..] fvsp :: Integer -> Int fvsp n = length (takeWhile not (zipWith (<) (pots n) factoriales)) -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/54> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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[Hugs] #57: Display "Files loaded do not match those on disk" message if this is true
by Hugs 04 May '07

04 May '07

#57: Display "Files loaded do not match those on disk" message if this is true -------------------------+-------------------------------------------------- Reporter: neil | Owner: neil Type: enhancement | Status: new Priority: minor | Milestone: Component: winhugs | Version: 200609 Keywords: | -------------------------+-------------------------------------------------- Display a warning that the files on disk have changed, if this is readily possible. Claus would like this. -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/57> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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[Hugs] #56: Print the evaluation count in the status bar
by Hugs 04 May '07

04 May '07

#56: Print the evaluation count in the status bar ---------------------+------------------------------------------------------ Reporter: neil | Owner: neil Type: defect | Status: new Priority: minor | Milestone: Component: winhugs | Version: 200609 Keywords: | ---------------------+------------------------------------------------------ Always print the evaluation count in the status bar, its plenty of space and currently dead space otherwise. Also means we can have one less option. -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/56> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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[Hugs] #55: Ctrl+E/L/R in WinHugs changes the text alignment
by Hugs 03 May '07

03 May '07

#55: Ctrl+E/L/R in WinHugs changes the text alignment ---------------------+------------------------------------------------------ Reporter: neil | Owner: neil Type: defect | Status: new Priority: minor | Milestone: Component: winhugs | Version: 200609 Keywords: | ---------------------+------------------------------------------------------ In WinHugs pressing Ctrl+E at the edit prompt will centre the text. -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/55> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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[Hugs] #42: WinHugs uninstaller crashes
by Hugs 18 Apr '07

18 Apr '07

#42: WinHugs uninstaller crashes ------------------------+--------------------------------------------------- Reporter: briansmith | Owner: neil Type: defect | Status: new Priority: major | Milestone: Component: winhugs | Version: 200609 Keywords: | ------------------------+--------------------------------------------------- I will attach a screenshot of the error. The error is: {{{ 16 bit MS-DOS Subsystem C:\PROGRA~1\WINHUG~1\UNINST~1.EXE The NTVDM CPU has encountered an illegal instruction. }}} I am using Windows XP SP2 using NTFS. My "Program Files" directory has very strict ACL permissions (only Administrators can modify anything). It seems strange that the uninstaller is a 16-bit console application. -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/42> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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[Hugs] #45: parseInput internal error
by Hugs 06 Apr '07

06 Apr '07

#45: parseInput internal error ---------------------+------------------------------------------------------ Reporter: neil | Owner: nobody Type: defect | Status: new Priority: major | Milestone: Component: parsing | Version: 200609 Keywords: | ---------------------+------------------------------------------------------ The following line in a file Main.hs: f = 1 where g (Just On :load Main.hs gives: INTERNAL ERROR: parseInput Please report this Hugs bug to mailto:hugs-bugs@haskell.org with: WinHugs May 2006 & Sep 2006 -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/45> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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[Hugs] #44: Hugs does not provide version numbers for installed packages
by Hugs 06 Apr '07

06 Apr '07

#44: Hugs does not provide version numbers for installed packages -------------------------+-------------------------------------------------- Reporter: briansmith | Owner: nobody Type: enhancement | Status: new Priority: major | Milestone: Component: hugs | Version: 200609 Keywords: | -------------------------+-------------------------------------------------- After installing WinHugs, we can inspect the "packages" subdirectory to see what packages are installed. But, there is no way to tell what version of each package is installed. I know that Hugs does not provide a versioning mechanism for packages like GHC does, but it would be very helpful it it at least included a "version" file in each directory that contained the version number from the Cabal file. -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/44> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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[Hugs] #28: Cannot make existential type instance of class with fundep
by Hugs 06 Apr '07

06 Apr '07

#28: Cannot make existential type instance of class with fundep -------------------------+-------------------------------------------------- Reporter: guest | Owner: nobody Type: defect | Status: new Priority: minor | Milestone: Component: type system | Version: 200605 Keywords: | -------------------------+-------------------------------------------------- There seems to be a problem when combining !FunDeps and Existential Types. The code below (works on ghci) causes an error: - ''ERROR "Existential.hs":8 - Existentially quantified variable escapes from pattern !FooObj a''. {{{ class Foo a b | a -> b where foo :: a -> (String,b) data FooA = A instance Foo FooA String where foo _ = ("tyA","A-specific") data FooObj = forall a b. Foo a b => FooObj a instance Foo FooObj () where foo (FooObj a) = (fst (foo a),()) -- !!! }}} best regards, benedikt -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/28> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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[Hugs] #49: LDFLAGS and hugs packages on OS X 10.4
by Hugs 06 Apr '07

06 Apr '07

#49: LDFLAGS and hugs packages on OS X 10.4 ----------------------------------+----------------------------------------- Reporter: guest | Owner: nobody Type: defect | Status: new Priority: minor | Milestone: Component: build system | Version: 200609 Keywords: LDFLAGS X11 packages | ----------------------------------+----------------------------------------- The value of the environnment variable LDFLAGS is not used to compile hug's packages. Consequently, make fails to build X11 package (on OS X 10.4.8) ; here is the make output : Preprocessing library X11-1.2... ../../libraries/tools/hsc2hs -D__HUGS__ -Iinclude -I/usr/X11R6/include --lflag=-lX11 -o Graphics/X11/Types.hs Graphics/X11/Types.hsc /usr/bin/ld: can't locate file for: -lX11 collect2: ld returned 1 exit status linking Graphics/X11/Types_hsc_make.o failed command was: /usr/bin/gcc -lX11 Graphics/X11/Types_hsc_make.o -o Graphics/X11/Types_hsc_make ../../packages/Cabal/examples/hapax.hs: got error code while preprocessing: Graphics.X11.Types Skipping X11 package My LDFLAGS variable whose value is "-L/usr/X11R6/lib -L/Users/julien/local/lib" has not been used. Simply add -L/usr/X11R6/lib to the gcc command and it compile fine. Another work around is to create a symbolic link : sudo ln -s /usr/X11R6/lib/libX11.a /usr/lib/libX11.a -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/49> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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[Hugs] #36: Statistics modes does not give wall time elapsed
by Hugs 06 Apr '07

06 Apr '07

#36: Statistics modes does not give wall time elapsed -------------------------+-------------------------------------------------- Reporter: neil | Owner: nobody Type: enhancement | Status: new Priority: minor | Milestone: Component: hugs | Version: 200605 Keywords: | -------------------------+-------------------------------------------------- When statistics are turned on, it gives reduction count, memory useage count, and garbage collection time. However, it does not give the amount of time that was actually consumed, which would be nice to have. -- Ticket URL: <http://hackage.haskell.org/trac/hugs/ticket/36> Hugs <http://www.haskell.org/hugs/> Hugs 98, an interpreter for Haskell

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