January 2002 - Hugs-Bugs

OSX
by Michel Schellekens 25 Oct '02

25 Oct '02

After downloading the OSX version, and typing "hugs" to start up the language, I obtain the following error: [schellekens:~] mpcs% hugs dyld: hugs can't open library: /usr/lib/libncurses.5.dylib (No such file or directory, errno = 2) Any suggestions? Michel.

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hugs thread scheduling
by Conal Elliott 02 Feb '02

02 Feb '02

Hugs still (again?) has a thread scheduling behavior that breaks Fran immediately. The required Prelude tweak is described at http://research.microsoft.com/~conal/Fran/news.htm under the "1.15" heading. Will this Prelude change get made at some point? - Conal

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Re:
by Fern�ndez 24 Jan '02

24 Jan '02

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:t 2^5000
by Hal Daume III 22 Jan '02

22 Jan '02

if you enter :t 2^5000 in hugs, it gives: 2 ^ 5000 :: (Integral a, Num b) => b which is obviously wrong (since a appears nowhere), but it's also obvious why it does this. any chance this'll be fixed? - hal -- Hal Daume III "Computer science is no more about computers | hdaume(a)isi.edu than astronomy is about telescopes." -Dijkstra | www.isi.edu/~hdaume

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Re:
by soaresbenedita＠iol.pt 22 Jan '02

22 Jan '02

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source release for Windows / GreenCard.h ?
by Antony Courtney 22 Jan '02

22 Jan '02

Hi all, I have started to explore the rudimentary ffi support provided with hugs. I see that the generated C module produced by hugs +G wants to include "GreenCard.h". Since "GreenCard.h" isn't included in the binary distribution of hugs, I tried pointing my C compiler at my GreenCard 2.03 installation. However, the generated code emits a function prototype: DLLEXPORT(void) initModule(HugsAPI3 *); which depends on HugsAPI3, which isn't defined in the GreenCard.h included in GreenCard 2.03. A few questions: - what should I need as a developer to use hug's ffi support? Do I need GreenCard? Do I need a source release of hugs? what should I need if I were a non-developer user of an ffi-based library under hugs? - Can / should the GreenCard.h in the official greencard release be updated to include a definition of HugsAPI3? - Should the binary release of hugs perhaps include a hugs-specific GreenCard.h? Also, I notice that there is a source release of hugs for Unix, but there does not appear to be a corresponding source release for Windows. Could one be provided (with appropriate Windows line terminators, and in WinZip format)? Thanks! -antony -- Antony Courtney Grad. Student, Dept. of Computer Science, Yale University antony(a)apocalypse.org http://www.apocalypse.org/pub/u/antony

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DELIVERY FAILURE: User julian_dennis (julian_dennis@amp.com.au) not listed in public Name & Address Book
by Postmaster＠amp.com.au 21 Jan '02

21 Jan '02

Your message Subject: Approved was not delivered to: julian_dennis(a)amp.com.au because: User julian_dennis (julian_dennis(a)amp.com.au) not listed in public Name & Address Book

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HTMLHelp file available
by Sigbjorn Finne 21 Jan '02

21 Jan '02

Hi, an HTMLHelp version of the Hugs98 documentation is now available via http://www.galois.com/~sof/hugs98.chm (HTMLHelp is the current Windows format for help files). --sigbjorn btw, no indexing, yet.

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undefined functions
by Bernhard Reus 21 Jan '02

21 Jan '02

The following behaviour of infinite recursion seems exaggerated: script test.hs contains only undef :: Int->Int undef x = undef x + 1 >:l test >:t undef undef:: Int->Int >undef 1 Segmentation fault Shouldn't this rather run into an infinite loop or a memory overflow. But segmentation fault? Best, Bernhard

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Hugs 98
by Christy 21 Jan '02

21 Jan '02

To Hugs, Hi, I do not think this is a bug but this is the closest email address to someone who I could email that could possibly help me out. Ok, my question is when you first start up Hugs 98, you see this line printed under the version #, Haskell 98 mode: Restart with command line option -98 to enable extensions. Now I was trying to set option -98 to enable extensions but it keeps giving me error saying Haskell 98 compatibility cannot be changed while the interpreter is running. So now I was wondering, how do I set this option (ie enable extensions). If anyone could shed some light onto this, this would be greatly appreciated. Thank you for your time and hope to get an email from you asap. Christy --------------------------------- Do You Yahoo!? Send FREE video emails in Yahoo! Mail.

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