#2209: MagicHash extraction is wrong on x86_64 with -fasm -O2
--+-
Reporter: quark | Owner: simonmar
Type: bug | Status: new
Priority: normal| Milestone: 6.8.3
Hi,
I'm trying to find out how the GHC rewrite rules pragma work, but I'm
not able to make it working. I have this simple example, where I would
like to specialize the function gen to spec on strings:
{-# OPTIONS -O2 -fglasgow-exts #-}
gen :: [a] - a
gen = head
{-# RULES gen/Char gen=spec #-}
jakubuv:
Hi,
I'm trying to find out how the GHC rewrite rules pragma work, but I'm
not able to make it working. I have this simple example, where I would
like to specialize the function gen to spec on strings:
{-# OPTIONS -O2 -fglasgow-exts #-}
gen :: [a] - a
gen = head
{-# RULES
Thanks lot, it works now. Now, I have just a simple question:
Is there any chance to make rewriting working in ghci ?
jan.
2008/5/27 Don Stewart [EMAIL PROTECTED]:
jakubuv:
Hi,
I'm trying to find out how the GHC rewrite rules pragma work, but I'm
not able to make it working. I have this
jakubuv:
Thanks lot, it works now. Now, I have just a simple question:
Is there any chance to make rewriting working in ghci ?
I think you can actually enable them by putting:
{-# OPTIONS -frewrite-rules #-}
at the top of the file to be interpreted. Works for me, anyway.
-- Don
thanks,
it works fine now.
2008/5/27 Don Stewart [EMAIL PROTECTED]:
jakubuv:
Thanks lot, it works now. Now, I have just a simple question:
Is there any chance to make rewriting working in ghci ?
I think you can actually enable them by putting:
{-# OPTIONS -frewrite-rules #-}
at the top
SmallCheck 0.4: another lightweight testing library in Haskell
--
A new version of SmallCheck can be obtained from:
http://hackage.haskell.org/cgi-bin/hackage-scripts/package/smallcheck
or alternatively from
andrewcoppin:
Gleb Alexeyev wrote:
foo :: (forall a . a - a) - (Bool, String)
foo g = (g True, g bzzt)
So, after an entire day of boggling my mind over this, I have brought it
down to one simple example:
(id 'J', id True) -- Works perfectly.
\f - (f 'J', f True) -- Fails
2008/5/27 Andrew Coppin [EMAIL PROTECTED]:
Gleb Alexeyev wrote:
foo :: (forall a . a - a) - (Bool, String)
foo g = (g True, g bzzt)
So, after an entire day of boggling my mind over this, I have brought it
down to one simple example:
(id 'J', id True) -- Works perfectly.
\f - (f 'J',
Andrew Coppin wrote:
So, after an entire day of boggling my mind over this, I have brought it
down to one simple example:
(id 'J', id True) -- Works perfectly.
\f - (f 'J', f True) -- Fails miserably.
Both expressions are obviously perfectly type-safe, and yet the type
On Tue, May 27, 2008 at 3:40 PM, Kim-Ee Yeoh [EMAIL PROTECTED] wrote:
Let's fill in the type variable: (x - x) - (Char, Bool) ==
forall x. (x - x) - (Char, Bool) == x_t - (x - x) - (Char, Bool),
where x_t is the hidden type-variable, not unlike the reader monad.
As you've pointed out, callER
John Goerzen wrote:
On Sunday 25 May 2008 11:24:20 am Morten Holm Pedersen wrote:
am trying to do a simple DB connection from Haskell to a SQL Server 2005
(on Windows obviously). The DSN name (Nylon) works from C++ but when
running the below example (or any other I can think of) ghci crashes.
Along these lines, check out (and maybe quote) the July 2007 note from Doug
McIlroy to the Haskell list:
http://www.haskell.org/pipermail/haskell/2007-July/019632.html
I've particularly been enjoying Doug's paper The Music of Streams,
mentioned in that note.
- Conal
On Mon, May 26, 2008 at
maybe try
runghc Setup.hs clean
or fresh darcs checkout and try build again from scratch. it's helped
me in the past.
thomas.
Am 26. Mai 2008 21:32 schrieb Galchin, Vasili [EMAIL PROTECTED]:
Hello,
One of my test cases will not build. I am running:
[EMAIL PROTECTED]:~$ ghc -v
Chaddaï Fouché wrote:
- Why are top-level variables and function arguments treated differently by
the type system?
They aren't
In a sense, they are.
id :: (forall a. a - a)
useId :: (forall a. a - a) - (Int,Bool)
brokenUseId :: (forall a. (a - a) - (Int,Bool))
brokenUseId :: (a - a) -
when I do a clean followed by configure then dist is empty
vasili
On Tue, May 27, 2008 at 4:37 PM, Thomas Hartman [EMAIL PROTECTED] wrote:
maybe try
runghc Setup.hs clean
or fresh darcs checkout and try build again from scratch. it's helped
me in the past.
thomas.
Am 26. Mai 2008
actually I also got a core file. ... when I am running runghc Setup.lhs
. and get a core file when I run gdb on the core file in this
situation what Linux executable should I specify with the core file? ghc?
Also when building ghc how to do I specify to keep symbol table for
debugging? Is it
Released May 27th, 2008.
I've been working for a little while on a haskell wrapper to the photo hosting
site Smugmug's api.
As of now, the library is pretty simple - it is 'read-only' - ie, you can't use
it to upload to or create galleries, but I still think it is potentially
useful to
Andrew Coppin wrote:
So, after an entire day of boggling my mind over this, I have brought it
down to one simple example:
(id 'J', id True) -- Works perfectly.
\f - (f 'J', f True) -- Fails miserably.
Both expressions are obviously perfectly type-safe, and yet the type
checker
I think dist gets populated when you do build.
2008/5/27 Galchin, Vasili [EMAIL PROTECTED]:
when I do a clean followed by configure then dist is empty
vasili
On Tue, May 27, 2008 at 4:37 PM, Thomas Hartman [EMAIL PROTECTED] wrote:
maybe try
runghc Setup.hs clean
or fresh darcs
Warning for Andrew: this post explains a new-to-you typed lambda calculus
and a significant part of the innards of Hindley-Milner typing in order to
answer your questions. Expect to bang your head a little!
On Tue, 27 May 2008, Andrew Coppin wrote:
- A function starts out with a polymorphic
On 5/27/08, Darrin Thompson [EMAIL PROTECTED] wrote:
On Tue, May 27, 2008 at 3:40 PM, Kim-Ee Yeoh [EMAIL PROTECTED] wrote:
What we want is the callEE to choose x_t since callEE needs to
instantiate x_t to Char and Bool. What we want is
(x_t - x - x) - (Char, Bool).
But that's just
On 5/26/08, Andrew Coppin [EMAIL PROTECTED] wrote:
This is probably the first real use I've ever seen of so-called rank-2
types, and I'm curios to know why people think they need to exist.
[Obviously when somebody vastly more intelligent than me says something is
necessary, they probably know
On Tue, 2008-05-27 at 15:33 -0700, Thomas Hartman wrote:
I think dist gets populated when you do build.
Actually we also stash the configuration in ./dist/setup-config so that
gets created at configure time.
Galchin's problem is that something goes wrong during the configure and
so nothing
On Tue, May 27, 2008 at 5:55 PM, Andrew Coppin
[EMAIL PROTECTED] wrote:
Gleb Alexeyev wrote:
foo :: (forall a . a - a) - (Bool, String)
foo g = (g True, g bzzt)
So, after an entire day of boggling my mind over this, I have brought it
down to one simple example:
(id 'J', id True) --
In particular, which syllable gets the stress, and what are the
lengths of the two vowels? Couldn't find anything in the FAQ
(http://www.haskell.org/haskellwiki/Cabal/FAQ).
--
Dan
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Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
As in the dictionary (http://www.merriam-webster.com/dictionary/cabal),
accent on the second syllable, which is pronounced like none of ball,
balance, boll and bale. Roughly the same rhythm as kaboom.
On Tue, May 27, 2008 at 6:04 PM, Dan Piponi [EMAIL PROTECTED] wrote:
In particular, which
On 27/05/2008, at 6:08 PM, Neil Mitchell wrote:
It most certainly is a security flaw.
In the src of an img, yes, probably. In the href of a link, its a
completely valid thing to do - and one that I've done loads of times.
The URI is fine, its just the particular location that is dodgy.
Actually, according to the definition that you used
(http://www.merriam-webster.com/dictionary/cabal), there are the following two
pronunciations of cabal:
1) \kə-ˈbäl\
2) \kə-ˈbal\
The a phoneme of the ˈbal syllable of pronunciation 2 is actually defined
to be identical to the first syllable
I am taking comments on a web forum from arbitrary people. The
interpretation of the HTML occurs at the user's browser. A lot of
people will be using outdated browsers (IE 5.5 / 6), ergo security
(at the source) becomes my problem. I cannot force them to upgrade
their browsers.
I think
On Tue, May 27, 2008 at 10:27 PM, Benjamin L. Russell
[EMAIL PROTECTED] wrote:
Actually, according to the definition that you used (
http://www.merriam-webster.com/dictionary/cabal), there are the following
two pronunciations of cabal:
1) \kə-ˈbäl\
2) \kə-ˈbal\
The a phoneme of the ˈbal
I wonder whether the following idea has been investigated or implemented
somewhere:
We could simulate a list with strict elements, i.e.
data StrictList a = Elem !a (StrictList a) | End
by an unboxed array with a cursor to the next element to be evaluated and
a function that generates
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