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From: fjh@murlibobo.cs.mu.OZ.AU (Fergus Henderson)
Subject: Re: Q: access to subprogram
Date: 1996/07/28
Date: 1996-07-28T00:00:00+00:00	[thread overview]
Message-ID: <4tf60v$5m2@mulga.cs.mu.OZ.AU> (raw)
In-Reply-To: 4t9un9$imn@goanna.cs.rmit.edu.au


ok@goanna.cs.rmit.edu.au (Richard A. O'Keefe) writes:

>This is like "type classes" as found in Mercury and Haskell.

Mercury doesn't have type classes, I'm afraid, only
pure parametric polymorphism.  Maybe in some later version...
(You can do the same sort of things using parametric polymorphism
by explicitly passing the necessary operations as higher-order
predicates or functions, but it's a bit more cumbersome than
Haskell's type classes.)

--
Fergus Henderson <fjh@cs.mu.oz.au>   |  "I have always known that the pursuit
WWW: <http://www.cs.mu.oz.au/~fjh>   |  of excellence is a lethal habit"
PGP: finger fjh@128.250.37.3         |     -- the last words of T. S. Garp.




  reply	other threads:[~1996-07-28  0:00 UTC|newest]

Thread overview: 133+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1996-07-02  0:00 Q: access to subprogram tmoran
1996-07-02  0:00 ` Robert A Duff
1996-07-02  0:00   ` Robert Dewar
1996-07-03  0:00   ` Fergus Henderson
1996-07-03  0:00     ` Robert A Duff
1996-07-03  0:00       ` Robert Dewar
1996-07-03  0:00       ` Adam Beneschan
1996-07-03  0:00         ` Robert Dewar
1996-07-03  0:00         ` Robert A Duff
1996-07-09  0:00         ` Thomas Wolff
1996-07-03  0:00   ` Jon S Anthony
1996-07-03  0:00     ` Robert Dewar
1996-07-03  0:00     ` Mark A Biggar
1996-07-03  0:00       ` Robert A Duff
1996-07-03  0:00         ` Robert Dewar
1996-07-09  0:00         ` Thomas Wolff
1996-07-09  0:00           ` Robert Dewar
1996-07-10  0:00           ` Robert A Duff
1996-07-10  0:00             ` Richard A. O'Keefe
1996-07-10  0:00               ` Robert A Duff
1996-07-10  0:00                 ` Thomas Wolff
1996-07-10  0:00                   ` Robert A Duff
1996-07-10  0:00                   ` Robert Dewar
1996-07-10  0:00               ` Robert Dewar
1996-07-03  0:00       ` Robert Dewar
1996-07-06  0:00         ` Robert A Duff
1996-07-08  0:00           ` Norman H. Cohen
1996-07-08  0:00             ` Robert Dewar
1996-07-11  0:00             ` Robert A Duff
1996-07-12  0:00               ` Robert A Duff
1996-07-14  0:00               ` Norman H. Cohen
1996-07-03  0:00     ` Robert A Duff
1996-07-08  0:00       ` Norman H. Cohen
1996-07-09  0:00         ` Robert A Duff
1996-07-19  0:00     ` Brian Rogoff
1996-07-22  0:00       ` Richard A. O'Keefe
1996-07-23  0:00       ` Brian Rogoff
1996-07-23  0:00         ` Robert A Duff
1996-07-26  0:00         ` Brian Rogoff
1996-07-28  0:00           ` Robert A Duff
1996-07-22  0:00     ` Brian Rogoff
1996-07-23  0:00       ` Robert A Duff
1996-07-24  0:00       ` Brian Rogoff
1996-07-26  0:00         ` Robert A Duff
1996-07-30  0:00         ` Brian Rogoff
1996-07-24  0:00       ` Richard A. O'Keefe
1996-07-26  0:00         ` Ken Garlington
1996-07-30  0:00           ` Richard A. O'Keefe
1996-07-24  0:00     ` Brian Rogoff
1996-07-26  0:00     ` Richard A. O'Keefe
1996-07-28  0:00       ` Fergus Henderson [this message]
1996-07-28  0:00       ` Robert A Duff
1996-07-29  0:00         ` Richard A. O'Keefe
1996-07-29  0:00           ` Robert A Duff
1996-07-29  0:00     ` Richard A. O'Keefe
1996-07-30  0:00     ` Jon S Anthony
1996-07-05  0:00   ` Jon S Anthony
1996-07-06  0:00     ` Robert Dewar
1996-07-06  0:00     ` Robert A Duff
1996-07-06  0:00       ` Robert Dewar
1996-07-08  0:00         ` Robert A Duff
1996-07-08  0:00       ` Richard A. O'Keefe
1996-07-08  0:00         ` Robert A Duff
1996-07-08  0:00           ` Robert Dewar
1996-07-08  0:00         ` Robert Dewar
1996-07-10  0:00           ` Richard A. O'Keefe
1996-07-10  0:00             ` Robert Dewar
1996-07-19  0:00               ` Richard A. O'Keefe
1996-07-07  0:00   ` Ronald Cole
1996-07-07  0:00     ` Robert Dewar
1996-07-07  0:00       ` Richard Kenner
1996-07-07  0:00         ` Robert Dewar
1996-07-14  0:00       ` Ronald Cole
1996-07-14  0:00         ` Richard Kenner
1996-07-15  0:00           ` Fergus Henderson
1996-07-15  0:00             ` Robert Dewar
1996-07-17  0:00               ` Fergus Henderson
1996-07-17  0:00                 ` Richard Kenner
1996-07-17  0:00               ` Adam Beneschan
1996-07-20  0:00               ` Michael Feldman
1996-07-20  0:00                 ` Robert Dewar
1996-07-16  0:00             ` Richard Kenner
1996-07-07  0:00     ` Richard Kenner
1996-07-07  0:00   ` Mark Eichin
1996-07-08  0:00     ` Richard Kenner
1996-07-08  0:00   ` Brian Rogoff
1996-07-11  0:00     ` Norman H. Cohen
1996-07-11  0:00       ` Magnus Kempe
1996-07-11  0:00         ` Robert Dewar
1996-07-09  0:00   ` Jon S Anthony
1996-07-09  0:00     ` Robert Dewar
1996-07-09  0:00   ` Jon S Anthony
1996-07-09  0:00     ` Robert Dewar
1996-07-09  0:00     ` Robert Dewar
1996-07-10  0:00   ` Ronald Cole
1996-07-11  0:00     ` Robert Dewar
1996-07-11  0:00     ` Richard Kenner
1996-07-11  0:00   ` Jon S Anthony
1996-07-11  0:00   ` Jon S Anthony
1996-07-11  0:00     ` Robert Dewar
1996-07-11  0:00   ` Jon S Anthony
1996-07-11  0:00     ` Robert Dewar
1996-07-15  0:00       ` Mark A Biggar
1996-07-15  0:00         ` Robert Dewar
1996-07-11  0:00     ` Tucker Taft
1996-07-17  0:00       ` Brian Rogoff
1996-07-12  0:00     ` Jon S Anthony
1996-07-12  0:00       ` Robert Dewar
1996-07-15  0:00     ` Jon S Anthony
1996-07-15  0:00       ` Robert Dewar
1996-07-12  0:00   ` Brian Rogoff
1996-07-16  0:00     ` Magnus Kempe
1996-07-14  0:00   ` Ronald Cole
1996-07-14  0:00     ` Robert Dewar
1996-07-15  0:00   ` Jon S Anthony
1996-07-15  0:00     ` Robert Dewar
1996-07-16  0:00   ` Brian Rogoff
1996-07-24  0:00 ` Jon S Anthony
1996-07-25  0:00 ` Jon S Anthony
1996-07-25  0:00 ` Fergus Henderson
1996-07-25  0:00   ` David Kristola
1996-07-26  0:00     ` Robert A Duff
1996-07-30  0:00       ` David Kristola
1996-07-30  0:00       ` Thomas Wolff
1996-07-30  0:00         ` Robert A Duff
1996-07-26  0:00   ` Robert A Duff
1996-07-26  0:00     ` Fergus Henderson
1996-07-28  0:00       ` Robert A Duff
1996-07-28  0:00         ` Fergus Henderson
  -- strict thread matches above, loose matches on Subject: below --
1996-07-05  0:00 tmoran
1996-07-06  0:00 ` Robert A Duff
1996-07-15  0:00 tmoran
1996-07-15  0:00 ` Robert Dewar
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