[moved from the main Haskell-list: I'm afraid the HDB discussion on
the Haskell mailing list had already been long]
Tim Docker wrote on the Haskell mailing list
The differences between HDBC and HSQL have been recently discussed.
Where does Takusen fit into this picture? From the above, it
John Meacham wrote:
Yeah. this is a major bug in ghc IMHO. I believe it has been fixed, but
am unsure.
It hasn't been fixed, this is the current behaviour and it's likely to
stay that way, I'm afraid.
We used to run finalizers on exit, but we stopped doing that for various
reasons. Even
Hello John,
Tuesday, January 10, 2006, 2:08:44 AM, you wrote:
i want to read a file encoded in utf8 and at a later time output portions of
it
on the console. Is there an easy way to do this in haskell? using the
standard
i/o functions i can read the file but the output gives me \1071 ...
On 1/9/06, Gracjan Polak [EMAIL PROTECTED] wrote:
Hi all,
A bit strange behaviour with hPutStrLn. Consider following program:
main = do
handle - openFile output.txt WriteMode
hPutStrLn handle (unlines contLines2)
-- hFlush houtput
where
contLines2 = flip map
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Bulat Ziganshin
i have the question about this issue - i also want to provide
autodetection mechanism, which relies on first bytes of text files to
set proper encoding. what is the standard rules to encode utf8/utf16
encoding
On my 1.2 GHz Duron (SuSE linux), I get significantly different timings than
those on the wiki. Sebastian Sylvan's, Kimberley Burchett's and Bertram
Felgenhauer's all take roughly thrice as long as posted (that's rather
consistent, but the factor is surprisingly large). Cale Gibbard's takes
Brian Hulley wrote:
Cale Gibbard wrote:
Unifying these two under a single operation is certainly trickier,
and it's a little more questionable that it should be done at all,
given that their types are so different -- below is the closest I
could come to it off-hand.
snip
Thanks! I'm
[Moving to café, too]
There are three active database libraries: HDBC, HSQL and Takusen. It
is quite disappointing from my point of view. Recently there was the
same situation with the GUI libraires. The Haskell Community is quite
small to waste efforts, developing different libraries for
On 10/01/06, Daniel Fischer [EMAIL PROTECTED] wrote:
On my 1.2 GHz Duron (SuSE linux), I get significantly different timings than
those on the wiki. Sebastian Sylvan's, Kimberley Burchett's and Bertram
Felgenhauer's all take roughly thrice as long as posted (that's rather
consistent, but the
Bayley, Alistair wrote:
[Moving to café, too]
There are three active database libraries: HDBC, HSQL and Takusen.
It is quite disappointing from my point of view. Recently there was
the same situation with the GUI libraires. The Haskell Community is
quite small to waste efforts, developing
Am Dienstag, 10. Januar 2006 16:10 schrieben Sie:
On 10/01/06, Daniel Fischer [EMAIL PROTECTED] wrote:
On my 1.2 GHz Duron (SuSE linux), I get significantly different timings
than those on the wiki. Sebastian Sylvan's, Kimberley Burchett's and
Bertram Felgenhauer's all take roughly thrice
Hi all,
I am having space issues with some decompression code; I've attached a
much simplified version as Test1.hs.
At the bottom (foo/bar) is the equivalent of deflate. This should be a
standalone module which doesn't know about the rest.
In the middle (readChunks) is the equivalent of
I'll make a guess...
Ian Lynagh wrote:
Hi all,
In the middle (readChunks) is the equivalent of gunzip. It repeatedly
calls foo until there is no more input left.
At the top is a simple main function that calls them.
If I do
dd if=/dev/zero of=data bs=1000 count=3000 # making
On Tue, Jan 10, 2006 at 05:28:03PM +, Chris Kuklewicz wrote:
I'll make a guess...
Ian Lynagh wrote:
Hi all,
foo :: String - (String, String)
foo = runState bar
bar :: SecondMonad String
bar = do inp - get
case inp of
[] - return []
Hello ,
those rank-2 types wil make me mad :)
encodeHelper :: (MRef m r, Binary m a, BitStream m (StringBuffer m r))
= a - m String
encodeHelper x = do h - newStringBuffer stringBufferDefaultCloseFunc
put_ h x
getStringBuffer h
encode x =
I will continue to guess...
Ian Lynagh wrote:
On Tue, Jan 10, 2006 at 05:28:03PM +, Chris Kuklewicz wrote:
I'll make a guess...
Ian Lynagh wrote:
Hi all,
foo :: String - (String, String)
foo = runState bar
bar :: SecondMonad String
bar = do inp - get
case inp of
Hi -
I'm wondering if there is any possiblility of getting intersection types
into Haskell. For example, at the moment there is no (proper) typing for:
f g x y = (g x, g y)
Ideally, I'd like to be able to write:
f:: (a - b c - d) - a - c - (b,d)
or
f :: (a - b a) - c - d - (b c,
Hi
If I understand your problem than the following is a solution:
--
{-# OPTIONS -fglasgow-exts #-}
class Foo a b where
g :: a - b
type A = {- change the following -} Int
type B = {- change the following -} Char
instance Foo A B where
José Miguel Vilaça wrote:
Hi
If I understand your problem than the following is a solution:
--
{-# OPTIONS -fglasgow-exts #-}
class Foo a b where
g :: a - b
type A = {- change the following -} Int
type B = {- change the following -} Char
--- Chris Kuklewicz [EMAIL PROTECTED]
wrote:
I have two strong suggestions:
* whoever does submit them should diff the output
with a previously accepted version.
-snip-
Simply diff program output with the example output
file (there's now an output file link in each problem
description).
Of
On 1/10/06, Brian Hulley [EMAIL PROTECTED] wrote:
Hi -
I'm wondering if there is any possiblility of getting intersection types
into Haskell. For example, at the moment there is no (proper) typing for:
f g x y = (g x, g y)
Ideally, I'd like to be able to write:
f:: (a - b c - d)
Taral wrote:
On 1/10/06, Brian Hulley [EMAIL PROTECTED] wrote:
Hi -
I'm wondering if there is any possiblility of getting intersection
types into Haskell. For example, at the moment there is no (proper)
typing for:
f g x y = (g x, g y)
Ideally, I'd like to be able to write:
f:: (a -
Brian Hulley wrote:
Taral wrote:
I have no idea what kind of function would have type (a - b c -
d). Can you give an example?
g x = x
because g 3 = 3 so g has type Int - Int but also g 'a' = 'a' so g
has type Char - Char hence g has type Int - Int Char - Char
Actually I should have said
On Tue, Jan 10, 2006 at 09:40:41AM +, Simon Marlow wrote:
John Meacham wrote:
Yeah. this is a major bug in ghc IMHO. I believe it has been fixed, but
am unsure.
It hasn't been fixed, this is the current behaviour and it's likely to
stay that way, I'm afraid.
We used to run
Hello Daniel,
Tuesday, January 10, 2006, 7:40:24 PM, you wrote:
DF These are user/MUT times, at the moment, my machine is busy, so that elapsed
DF time is about double that, otherwise these times are rather consistently
DF reproduced (between 8.4 and 8.9 for pure, 1.7 and 1.9 for impure, clean
Am Dienstag, 10. Januar 2006 17:44 schrieb Ian Lynagh:
Hi all,
I am having space issues with some decompression code; I've attached a
much simplified version as Test1.hs.
At the bottom (foo/bar) is the equivalent of deflate. This should be a
standalone module which doesn't know about the
On Tue, Jan 10, 2006 at 04:44:33PM +, Ian Lynagh wrote:
readChunks :: FirstMonad String
readChunks = do xs - get
if null xs then return []
else do let (ys, zs) = foo xs
put zs
Am Dienstag, 10. Januar 2006 19:11 schrieben Sie:
Hello Daniel,
Tuesday, January 10, 2006, 7:40:24 PM, you wrote:
DF These are user/MUT times, at the moment, my machine is busy, so that
elapsed DF time is about double that, otherwise these times are rather
consistently DF reproduced
daniel.is.fischer:
Am Dienstag, 10. Januar 2006 19:11 schrieben Sie:
Hello Daniel,
Tuesday, January 10, 2006, 7:40:24 PM, you wrote:
DF These are user/MUT times, at the moment, my machine is busy, so that
elapsed DF time is about double that, otherwise these times are rather
On Tue, Jan 10, 2006 at 08:47:32PM +0300, Bulat Ziganshin wrote:
those rank-2 types wil make me mad :)
encodeHelper :: (MRef m r, Binary m a, BitStream m (StringBuffer m r))
= a - m String
encodeHelper x = do h - newStringBuffer stringBufferDefaultCloseFunc
Brian Hulley wrote:
snip
which is perhaps clearer and prevents bad types such as (Int -
String Int - Char) by construction.
Oops! I forgot that functions with such types can exist via multi-parameter
type classes and overloading - this may be one reason why intersection types
have not yet
Brian Hulley writes:
Also, as a second point, could functional dependencies in type
classes be written using a similar syntax eg instead of
class Insert t c a | c a - t where
insert :: t - c a - c a
we could write:
class Insert (h (c a)) c a where
insert :: h
32 matches
Mail list logo
