hello,
has anybody managed to build hdbc-sqlite3 with ghc 6.8.2 ?
I get the following error :
Macintosh:HDBC-sqlite3-1.1.3.0 manu$ runhaskell Setup.lhs build
Preprocessing library HDBC-sqlite3-1.1.3.0...
ghc-6.8.2: unrecognised flags: -F/Users/manu/Library/Frameworks
Usage: For basic
G'day all.
Quoting Yitzchak Gale [EMAIL PROTECTED]:
Data types consist only of computable elements. Since there
are only countably many computable functions, every data type
has at most countably many elements. In particular, it is a set.
I still say it isn't a set in the same way that a
As I'm a selfmade man, I never really studied relational databases in
detail. My intuition told me that the relational part was not really
suitable for the 3D data, 2D images, animation curves, state machines, and
other data I encountered in the videogame and animation business. I could
always get
·regarding Haskell and databases, the page
http://haskell.org/haskellwiki/Libraries_and_tools/Database_interfaces
describes a few, but which are the ones that are stable and practical? Any
user experiences?
During my experiments I found Takusen
(http://darcs.haskell.org/takusen/) and
Good point.
By fold/unfold transformation you get the following:
contains = flip elem [Eureka]
=
contains xs e = flip elem xs e [Expose data structures]
=
contains [] e = False
contains (x:xs) e = flip elem (x:xs) e [Instantiate]
=
contains [] e = False
contains (x:xs) e = elem e x:[] || flip
I recommend you read Extending the database relational model to capture
more meaning by E.F. Codd.
On Wed, 02 Jan 2008 13:50:46 +0200, Peter Verswyvelen [EMAIL PROTECTED]
wrote:
As I'm a selfmade man, I never really studied relational databases in
detail. My intuition told me that the
Hi Yitz,
On Jan 2, 2008 10:34 AM, Yitzchak Gale [EMAIL PROTECTED] wrote:
No, only countably many. By the type expression Integer - Integer
we mean all Haskell functions mapping Integers to Integers.
There are only countably many of those.
...
But that was not the context in this thread. The
manu wrote:
hello,
has anybody managed to build hdbc-sqlite3 with ghc 6.8.2 ?
I get the following error :
Macintosh:HDBC-sqlite3-1.1.3.0 manu$ runhaskell Setup.lhs build
Preprocessing library HDBC-sqlite3-1.1.3.0...
ghc-6.8.2: unrecognised flags: -F/Users/manu/Library/Frameworks
On 2 Jan 2008, at 5:49 AM, Yitzchak Gale wrote:
Hi Andrew,
Andrew Bromage wrote:
I still say it isn't a set in the same way that a group isn't a
set.
Haskell data types have structure that is respected by Haskell
homomorphisms. Sets don't.
Ah, that's certainly true. But what is that
[EMAIL PROTECTED] wrote:
G'day all.
Quoting Jon Harrop [EMAIL PROTECTED]:
I would recommend adding:
1. FFT.
2. Graph traversal, e.g. nth-nearest neighbor.
I'd like to put in a request for Pseudoknot. Does anyone still have it?
This is it, I think:
Hello,
Some days ago I needed escape codes on Win32. I didn't find any library for
that, so I wrote a simple one.
I thought, perhaps someone else will have the same problem, so I put it on my
website:http://0hc.net/?what=downloads_sup_AWin32Console
I've tested it with the ghc 6.6.1, and
Hi
Some days ago I needed escape codes on Win32. I didn't find any library for
that, so I wrote a simple one.
I have a simple module which does them as part of Hoogle:
http://www.cs.york.ac.uk/fp/darcs/hoogle/src/General/Type.hs - see
TagStr, the type for defining text with basic formatting
Peter Firefly Brodersen Lund wrote:
Using top together with huge input files convinced me that -sstderr was
untrustworthy so I developed the pause-at-end preloading hack. Paranoia paid
off big time there.
In what way did you find -sstderr untrustworthy? Perhaps it is because the
memory in
I have started documenting the Database Wikibook, in particular, about
HDBC. It is still very rough at this time, but something is better
than nothing :-) If you want to add more content, certainly welcome!
http://en.wikibooks.org/wiki/Haskell/Database
On 1/2/08, Jeff Polakow [EMAIL PROTECTED]
Hi,
The hackage web page confuses me:
http://hackage.haskell.org/packages/hackage.html
As a user, when I go to that page, I would be seeking one of four
pieces of information:
1) How to install a cabal package
2) How to create and upload a cabal package
3) What packages are on hackage
4)
Brian Hurt [EMAIL PROTECTED] wrote:
But I was wondering if it is possible that lazy evaluation
could lead to space compression, especially under heavily persistant
usage patterns?
Note that the benefit isn't *big*- we're talking about 40 words of
memory when the main data structure is
Joost Behrends wrote:
Neil Mitchell ndmitchell at gmail.com writes:
If it can be reproduced on anyones machine, it is a bug. If you can
bundle up two programs which don't read from stdin (i.e. no getLine
calls) or the standard arguments (i.e. getArgs) which differ only by
the Data.Char
I'm trying to translate some standard C# constucts into Haskell... some
of this seems easy
Specifically
1)
Interface IX
{
}
2)
Interface IXA
{
}
3)
Interface IXA
Where A : IY
{
}
4)
Interface IXA : IZ
Where A : IY
{
}
I can take a punt at the first 2but then it
In message [EMAIL PROTECTED] Neil
Mitchell [EMAIL PROTECTED] writes:
Hi,
The hackage web page confuses me:
http://hackage.haskell.org/packages/hackage.html
Hackage has now graduated from being a nice idea to being a critial
user-focused thingy, which is great. Perhaps the website needs a
Of course it depends what's inside the braces, and what you want to do with
it, but I'd be inclined to do something like this:
1) data IX a = IX { constructor :: Int - a, ... }
2) data IX a b = IX { constructor :: Int - b, func :: a - b, ... }
3) data IX a b = IX { iy :: IY a, ... }
4) data IX a
Hello Neil,
Wednesday, January 2, 2008, 7:30:21 PM, you wrote:
The hackage web page confuses me:
http://hackage.haskell.org/packages/hackage.html
btw, i very like idea of using wiki pages which allows all users to
participate in development of docs. may be it will be better to wikify
this
Hello,
I found STM.c(lower layer), but cannot find the top layer code written
Haskell.??
Vasya
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-- ryan
On 1/2/08, Galchin Vasili [EMAIL PROTECTED] wrote:
Hello,
I found STM.c(lower layer), but cannot find the top layer code written
Haskell.??
Vasya
___
Hello Mark,
Wednesday, January 2, 2008, 7:40:31 PM, you wrote:
I'm trying to translate some standard C# constucts into Haskell... some
it's meaningless. read http://haskell.org/haskellwiki/OOP_vs_type_classes
and especially papers mentioned in the References
--
Best regards,
Bulat
I'm also new to Haskell, but I'm a C++/C# veteran, so I'll give it a shot.
C#'s interfaces look a bit like Haskell's type classes.
Although not exactly the same, you could try something like this:
-- C#: interface IX1 { String foo1(int); }
class IX1 obj where
foo1 :: Int - obj - String
--
On Mon, 2007-12-31 at 12:36 +, Joost Behrends wrote:
And concerning SQL: I like the parts of the language - all capitalized - as
landmarks in my code, even in modified forms like:
SELECT number, customer FROM ++ currcols ++
Here i see from afar, what the code around this line
I can speak to haskelldb a little, see below:
On Jan 2, 2008 3:50 AM, Peter Verswyvelen [EMAIL PROTECTED] wrote:
·regarding Haskell and databases, the page
http://haskell.org/haskellwiki/Libraries_and_tools/Database_interfaces
describes a few, but which are the ones that are stable and
Dear all,
I've released version 0.7.2 of the Dimensional library. The only
change from version 0.7.1 is that the CGS module has been re-enabled.
Unless you use the CGS module there is no need to upgrade from 0.7.1.
Note that this version is incompatible with GHC 6.8.1 due to bug #1919
simonmarhaskell:
Peter Firefly Brodersen Lund wrote:
Using top together with huge input files convinced me that -sstderr was
untrustworthy so I developed the pause-at-end preloading hack. Paranoia
paid
off big time there.
In what way did you find -sstderr untrustworthy? Perhaps it is
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