[Haskell-cafe] Re: [Haskell] ANNOUNCE: jhc 0.6.1

2009-06-24 Thread David Barton
Switching to Haskell Cafe; I hope you read that list, John, since it seems more suitable to this kind of question. John Meacham wrote: Hi, this is to announce the release of jhc 0.6.1. The jhc homepage with distribution information is at http://repetae.net/computer/jhc/ The main new feature

[Haskell-cafe] Cabal: error on configure

2008-10-07 Thread David Barton
OK, I suspect this is a real newbie error, but please have mercy. I have downloaded and installed cabal (at least it responds to the --help command from the command line). Yet when I do, say (to give a real example): cabal configure parameterized_ data (having done he fetch) I get this erro

Re: [Haskell-cafe] Do you trust Wikipedia?

2007-10-18 Thread David Barton
The trustworthy articles on Wikipedia have references that can be checked, and read. The ones without references are not to be trusted.. Dave Barton - Original Message - From: "Philippa Cowderoy" <[EMAIL PROTECTED]> To: "PR Stanley" <[EMAIL PROTECTED]> Cc: Sent: Thursday, October

[Haskell-cafe] Good article on why implementing a functional back end is really different

2007-06-07 Thread David Barton
Gentlefolk: Help. I need support for a technical argument: why going to an intermediate form for an existing functional back end like Haskell really, truly is better for implementing a functional language than is going to an intermediate form like the Java intermediate form and re-doing all t

Re: [Haskell-cafe] Functions with side-effects?

2005-12-21 Thread David Barton
Wolfgang Jeltsch writes: - Original Message - Am Mittwoch, 21. Dezember 2005 13:15 schrieb Creighton Hogg: [...] Monads, I believe, can be just thought of as containers for state. I would say that you are talking especially about the I/O monad here. A monad as such is a rather

Re: [Haskell-cafe] Updating the Haskell Standard

2005-07-20 Thread David Barton
John Goerzen writes: There was a brief discussion on #haskell today about the Haskell standard. I'd like to get opinions from more people, and ask if there is any effort being done in this direction presently. I know that some people would like to hold off on such a process until their fav

[Haskell-cafe] Re: [Haskell] Newbie : How come that cyclic recursive lists areefficient ?

2005-01-25 Thread David Barton
Benjamin Fransen writes: > There *is no* difference between the two if one views them as pure > mathematical values. Questions of run time speed or memory usage, i.e. > efficiency (which your original question was about) are clearly outside the > realm of pure values, and thus we may perceive them

Re: [Haskell-cafe] The implementation of functional languages

2004-09-21 Thread David Barton
John Meacham writes: > > >I am looking for the book "The implementation of Functional > > >Programming languages" by S. L. Peyton Jones. > > This book is out of print and currently there is no electronic version > > of it. The Haskell bookstore folk are working on reconstructing it and > > making

Re: Graphical Programming Environments (was: ANNOUNCE: Release of Vit al, an interactive visual programming environment for Haskell)

2003-11-13 Thread David Barton
I love religious wars. Having been around awhile, I make a prediction. This will thrash a while, those who like graphical environments will make their points, those who like textual environments will make their points, no one will convince anyone else, and eventually it will die down. In fact (i

Another Job

2002-11-05 Thread David Barton
There is also a job here: http://www.edaptive.com/career/index.htm It isn't exactly functional programming or Haskell, but it is related (more so than it looks from the job description). Please do consider it, if it sounds interesting to you. Dave Barton EDAptive Computing ___

Reproducing lazy evaluation in Scheme

2001-09-10 Thread David Barton
All right, I know this is a stupid question. I know the models of evaluation in call by name and call by value languages; however, I am kind of puzzled by trying to reproduce call by name in a call by value language using force and delay. If I put a delay around the right side of each equation a

Re: Typing units correctly

2001-02-13 Thread David Barton
Tom Pledger writes: In both of those cases, the apparent non-integer dimension is accompanied by a particular unit (km, V). So, could they equally well be handled by stripping away the units and exponentiating a dimensionless number? For example: (x / 1V) ^ y I think not.

Re: A sample revised prelude for numeric classes

2001-02-12 Thread David Barton
This is pretty rare, and it's also fairly tough to represent points in spaces of fractional dimension. I'll bet the sorts of complications necessary to do so would immediately exclude it from consideration in the design of a standard library, but nevertheless would be interesting to