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Groups > comp.lang.forth > #15154
| From | anton@mips.complang.tuwien.ac.at (Anton Ertl) |
|---|---|
| Newsgroups | comp.lang.forth |
| Subject | Re: Function Points |
| Date | 2012-08-25 14:13 +0000 |
| Organization | Institut fuer Computersprachen, Technische Universitaet Wien |
| Message-ID | <2012Aug25.161317@mips.complang.tuwien.ac.at> (permalink) |
| References | <2bebf6e6-dab7-4134-904f-a57e90765fd3@googlegroups.com> <zLadneWS6uQoBKnNnZ2dnUVZ8oednZ2d@supernews.com> <8545a450-d245-46ea-93cf-0b34a7bdbf8d@googlegroups.com> <2012Aug23.165054@mips.complang.tuwien.ac.at> <7x8vd5jvoh.fsf@ruckus.brouhaha.com> |
Paul Rubin <no.email@nospam.invalid> writes:
>anton@mips.complang.tuwien.ac.at (Anton Ertl) writes:
>> Really? My experience with Haskell is that I get type error messages
>> that are hard to comprehend.
>
>GHC's error messages are often pretty bad, but they usually do result
>from actual program errors that would make it into the executable if the
>type checker hadn't found them, so they are worth it.
The Haskell system was actually Hugs, not GHC, but the quality of the
error messages is due to the type system, so I would not expect any
better from a different Haskell system: The system just sees some
puzzle pieces and infers the missing pieces itself. If the pieces I
give it belong to different puzzles, it will fail at puzzing it out,
and since the system does not know which of the given puzzle pieces
are wrong, the error messages are necessarily not very helpful.
Concerning being worth, I have far fewer type errors in Forth than in
Haskell. Maybe that just reflects my familiarity with the languages,
but I believe that this is due to the languages and their type
systems. Forth is designed to be usable without type checking,
whereas Haskell is designed for static type checking with type
inference.
>As you get more
>used to Haskell, it gets easier to just look at the line number that the
>error message points to, and figure out what is wrong with the code by
>inspection.
Yes, after a while I learned some patterns of the kind, that a
particular incomprehensible error message points to this kind of
frequent error.
Anyway, my conclusion is that, while type inference sounds cool in
theory, it has more disadvantages than advantages in practice. One of
the disadvantages probably is that it allows a complex type system
that would be totally impractical without type inference; and the
Haskell designers went that way.
- anton
--
M. Anton Ertl http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
New standard: http://www.forth200x.org/forth200x.html
EuroForth 2012: http://www.euroforth.org/ef12/
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Comparative Productivity of Programming Languages visualforth@rocketmail.com - 2012-08-21 21:43 -0700
Re: Comparative Productivity of Programming Languages "A. K." <akk@nospam.org> - 2012-08-22 07:07 +0200
Re: Comparative Productivity of Programming Languages Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-08-22 03:35 -0500
Re: Comparative Productivity of Programming Languages John Passaniti <john.passaniti@gmail.com> - 2012-08-22 14:06 -0700
Function Points (was: Comparative Productivity of Programming Languages) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-08-23 14:50 +0000
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-23 11:43 -0700
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-08-25 14:13 +0000
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-25 10:12 -0700
Re: Function Points Doug Hoffman <glidedog@gmail.com> - 2012-08-25 15:39 -0400
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-25 15:09 -0700
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-08-25 12:34 -1000
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-25 16:43 -0700
Re: Function Points jacko <jackokring@gmail.com> - 2012-08-25 18:05 -0700
Re: Function Points jacko <jackokring@gmail.com> - 2012-08-25 20:34 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-08-26 03:24 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-25 22:44 -0700
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-08-25 21:19 -1000
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-26 00:36 -0700
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-08-25 21:50 -1000
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-26 01:08 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-08-26 23:20 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-26 19:33 -0700
Re: Function Points Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-08-27 13:34 -0500
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-08-27 22:38 +0200
Re: Function Points Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-08-28 02:45 -0500
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-27 18:14 -0700
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-27 18:24 -0700
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-08-30 14:22 +0000
Re: Function Points Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-08-28 03:07 -0500
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-28 08:18 -0700
Re: Function Points Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-08-28 12:15 -0500
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-28 23:05 -0700
Re: Function Points Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-08-29 03:55 -0500
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-08-27 22:28 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-27 20:26 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-08-28 23:17 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-29 01:13 -0700
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-29 02:23 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-08-30 02:59 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-29 22:18 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-08-30 20:44 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-31 01:29 -0700
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-08-31 09:33 +0000
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-08-30 02:58 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-29 19:39 -0700
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-08-30 14:10 +0000
Re: Function Points gavino_himself <visploveslisp@gmail.com> - 2012-08-30 20:08 -0700
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-08-30 17:47 -1000
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-08-27 13:43 -1000
Re: Function Points "Paul E. Bennett" <Paul_E.Bennett@topmail.co.uk> - 2012-08-27 12:14 +0100
Re: Function Points Mark Wills <markrobertwills@yahoo.co.uk> - 2012-08-27 05:12 -0700
Re: Function Points "Paul E. Bennett" <Paul_E.Bennett@topmail.co.uk> - 2012-08-27 15:52 +0100
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-08-26 13:09 +0000
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-27 20:52 -0700
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-08-30 14:08 +0000
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-30 10:43 -0700
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-08-30 08:25 -1000
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-08-30 22:42 +0200
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-08-31 01:23 -0400
Re: Function Points Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-08-31 03:08 -0500
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-08-31 18:56 -0400
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-01 02:35 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-31 23:52 -0700
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-09-01 14:27 +0000
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-09-01 14:18 +0000
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-01 17:45 +0200
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-09-01 16:14 +0000
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-01 19:13 +0200
Re: Function Points Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-09-02 03:19 -0500
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-01 16:18 -0400
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-02 03:04 +0200
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-02 04:02 -0400
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-02 17:40 +0200
Re: Function Points jim@rainbarrel.com - 2012-09-02 10:32 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-02 20:49 +0200
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-02 16:33 -0400
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-02 17:03 -0400
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-09-02 09:02 -1000
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-02 16:35 -0400
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-09-02 13:42 -1000
Re: Function Points jim@rainbarrel.com - 2012-09-02 16:54 -0700
Re: Function Points Mark Wills <markrobertwills@yahoo.co.uk> - 2012-09-03 00:29 -0700
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-03 01:30 -0400
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-09-02 21:21 -1000
Re: Function Points jim@rainbarrel.com - 2012-09-03 10:37 -0700
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-09-04 07:14 +0000
Re: Function Points Coos Haak <chforth@hccnet.nl> - 2012-09-03 21:12 +0200
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-03 17:32 -0400
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-03 17:51 -0400
Re: Function Points John Passaniti <john.passaniti@gmail.com> - 2012-09-03 22:37 -0700
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-04 04:25 -0400
Re: Function Points John Passaniti <john.passaniti@gmail.com> - 2012-09-04 07:35 -0700
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-05 02:13 -0400
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-09-04 20:18 -1000
Re: Function Points John Passaniti <john.passaniti@gmail.com> - 2012-09-05 10:56 -0700
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-05 16:11 -0400
Re: Function Points John Passaniti <john.passaniti@gmail.com> - 2012-09-05 14:07 -0700
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-02 16:27 -0400
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-03 00:52 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-09-02 16:28 -0700
Re: Function Points jim@rainbarrel.com - 2012-09-02 16:48 -0700
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-02 20:21 -0400
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-09-02 14:45 -1000
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-03 01:12 -0400
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-09-02 21:26 -1000
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-03 01:06 -0400
Re: Function Points Mark Wills <markrobertwills@yahoo.co.uk> - 2012-08-31 03:29 -0700
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-08-31 10:35 +0000
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-08-31 18:49 -0400
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-09-01 14:49 +0000
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-09-01 08:36 -1000
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-01 16:11 -0400
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-03 01:58 +0200
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-01 17:54 +0200
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-01 16:19 -0400
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-02 03:05 +0200
Re: Function Points Coos Haak <chforth@hccnet.nl> - 2012-08-31 23:10 +0200
Re: Function Points "Elizabeth D. Rather" <erather@forth.com> - 2012-08-31 15:50 -1000
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-09-01 10:31 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-01 21:52 +0200
Re: Function Points "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-09-01 16:36 -0400
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-09-01 14:36 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-02 03:30 +0200
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-02 23:15 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-09-02 15:02 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-03 01:50 +0200
Re: Function Points jim@rainbarrel.com - 2012-09-02 16:57 -0700
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-09-03 23:11 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-04 14:30 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-09-04 10:14 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-04 22:10 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-09-06 00:19 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-06 17:48 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-09-06 12:01 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-06 22:02 +0200
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-09-06 14:19 -0700
Heap (was: Function Points) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-09-07 11:30 +0000
Re: Heap (was: Function Points) Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-07 18:12 +0200
Re: Heap (was: Function Points) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-09-07 16:48 +0000
Re: Heap (was: Function Points) Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-07 21:34 +0200
Re: Heap Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2012-09-07 22:04 +0100
Re: Heap anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-09-08 11:52 +0000
Re: Heap Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-08 22:48 +0200
Re: Heap (was: Function Points) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-09-08 12:11 +0000
priority queue (was: Function Points) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-09-03 11:46 +0000
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-03 15:03 +0200
Re: Function Points mhx@iae.nl (Marcel Hendrix) - 2012-09-03 22:36 +0200
Re: Function Points mhx@iae.nl (Marcel Hendrix) - 2012-09-06 20:27 +0200
Re: Function Points Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-09-02 04:00 -0500
Re: Function Points visualforth@rocketmail.com - 2012-09-03 10:40 -0700
Re: Function Points Bernd Paysan <bernd.paysan@gmx.de> - 2012-09-03 20:26 +0200
Re: Function Points Doug Hoffman <glidedog@gmail.com> - 2012-08-27 11:49 -0400
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-27 09:16 -0700
Re: Function Points Josh Grams <josh@qualdan.com> - 2012-08-28 22:46 +0000
Re: Function Points jacko <jackokring@gmail.com> - 2012-08-28 16:06 -0700
Re: Function Points Doug Hoffman <glidedog@gmail.com> - 2012-08-28 20:50 -0400
Re: Function Points anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-08-26 12:59 +0000
Re: Function Points Paul Rubin <no.email@nospam.invalid> - 2012-08-26 22:24 -0700
Re: Function Points (was: Comparative Productivity of Programming Languages) John Passaniti <john.passaniti@gmail.com> - 2012-08-23 15:02 -0700
Re: Function Points (was: Comparative Productivity of Programming Languages) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-08-25 14:57 +0000
Re: Comparative Productivity of Programming Languages "Rod Pemberton" <do_not_have@notemailnot.cmm> - 2012-08-22 08:07 -0400
Re: Comparative Productivity of Programming Languages visualforth@rocketmail.com - 2012-08-22 08:12 -0700
Re: Comparative Productivity of Programming Languages visualforth@rocketmail.com - 2012-08-22 07:37 -0700
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