Dear all,
I would like to report a bug in ghc-2.02.
In ghc-0.29 and ghc-2.01 the program attached below
compiles fine. The 2.02 version of ghc fails.
Is there any chance this bug will be fixed in near future?
Regards,
Marc van Dongen
sible' happened):
Unexpected Dict or ForAll in occurCheck
Please report it as a compiler bug to [EMAIL PROTECTED]
*
Whereas
> module A( B ) where
> data B = C a
compiles fine. Is this valid Haskell?
Regards,
Marc van Dongen
[EMAIL PROTECTED]
I just wanted to report that the erroneous and tiny
program added below can not be compiled within 6MB of
heap (Admitted it can be compiled with a bigger heap).
It was part of a bigger program that could not be
compiled within 20MB of heap.
Regards,
Marc van Dongen
[EMAIL PROTECTED
> {
> happyError :: Int -> [Token] -> a
> happyError i'' _
> = error errstr
> where errstr = "This code fragment forces Happy to return with" ++
> "the following error message:\n\n" ++
> "Fail: Lexical Error: No closing '}' in code segment\n\n" ++
>
I cannot think of any reason why compiling the following
two programs should give different results. Maybe some deep
reason?
Anyway, the following compiles fine:
***
> module Rings( Group ) where
> import qualif
Hi,
While I was constructing an example for ghc-users, I created the following
program which crashed ghc-2.03.
> module Tmp( g ) where
> data AB p q = A
> | B p q
> g :: (Ord p,Ord q) => (AB p q) -> Bool
> g (B _ _)
> = g A
tmp.lhs:6:
Warning: Possibly incomplete patter
s helps.
Regards,
Marc van Dongen
> module Rings( Group, Ring ) where
> import qualified Prelude( Ord(..), Eq(..), Num(..) )
> import Prelude hiding( Ord(..), Eq(..), Num(..), MonadZero( zero ) )
> cl
(Group a) => a -> a -> a
Group a => added
> multiply a b
> = case (compare a zero) of
> EQ -> zero
> LT -> zero - (multiply (zero - a) b)
> GT -> case compare
Hi all,
I have noticed that profiling in ghc-2.03 in combination with
-O or -O2 is not possible because of some problems at the
linking stage. Also it turns out that profiling combined with
tracing results in programs which don't output any trace at all.
Are the problems related to profiling an
This does not work in ghc-2.03.
ghc-2.03: unrecognised option: -fshow-specialisations
Hope this helps.
Regards,
Marc van Dongen
I would like to report the following bug in ghc-2.04.
Profiling and optimizing with -O2 (I have not and will
not try -O) leads to errors like this at link-time:
CC_mkZubalancedZ92Z92Z92Zq_struct Blah1.o
CC_DICTs_struct Blah2.o
CC_mkZubalancedZ92Zq_struct Blah3.o
CC_
s a) => Read (L a) where
> readsPrec _ _ = [(L [],[])]
> buggy :: (Class a) => (L a) -> (L a)
> buggy omega
> = g omega 1
> g :: (Class a) => (L a) -> a -> (L a)
> g omega one
> = omega
I had expected an overloading error because of the use of ``1''
in the definition for ``buggy''.
Hope this helps.
Regards,
Marc van Dongen
If my memory serves me right, I haven't seen this one in ghc-2.03:
*** Pattern-matching error within GHC!
This is a compiler bug; please report it to [EMAIL PROTECTED]
Fail: "typecheck/Unify.lhs", line 60: incomplete pattern(s) to match in function
"unifyTauTyLists"
Caused by the followin
Module3.o
CC_nubZ92Zq_struct Module4.o
ld: fatal: Symbol referencing errors. No output written to ModuleMain
Compiling without profiling and -O2 or compiling with -O2 but without
profiling produces no errors.
Regards,
Marc van Dongen
:
`(first triple) PrelBase.== (PrelTup.fst triple)'
Hope this helps,
Marc van Dongen
[EMAIL PROTECTED]
Hi there,
I would like to report the following bugs (ghc 2.0498:).
## 1 ###
The following program:
> module Main( main ) where
> main = putStr (seq bot "1\n") >>
>return ()
> where bot = error
Compiling the code fragment appended at the end of this
message, ghc-2.03 fails with the following output:
Glasgow Haskell Compiler, version 2.03, for Haskell 1.4
panic! (the `impossible' happened):
tcLookupTyVar:a_r6v
Please report it as a compiler bug to [EMAIL PROTECTED]
H
-names out of
the profiling package? I have looked at the .hp files,
but the information does not seem to be available at
that level.
Any help would be greatly appreciated.
Regards,
Marc van Dongen
[EMAIL PROTECTED]
/usr/local/ghc-2.09/lib/libHS.a(GHCmain__7.o)
I have not used the function getBufferMode in my source. I do have a hSetBuffering.
Any suggestions how to get around this?
Thanks in advance,
Marc van Dongen
/usr/local/ghc-2.09/lib/libHS_p.a(GHCmain.p_o)
ld: fatal: Symbol referencing errors. No output written to Groebner
Hope this helps.
Marc van Dongen
Marc van Dongen, Computer Science Dept | phone: +353 21 903083
National
py generates
.. (let a = 1
b = 2
..
Which isn't proper Haskell.
Regards,
Marc van Dongen
he last line of this program was changed to
> where str = (show.concat)
> [let fx = f x in [fx y | y <- [1..big]] | x <- [1..big]]
Hope this helps.
Regards,
Marc van Dongen
Dear all,
While compiling some stuff I came across the following:
compiling with -O did failed without any error message
at all.
compiling with -O2 succeeded
?
Any idea what could have caused it? I can tell you how to
reproduce this if wanted.
Regards,
Marc
Hi there,
While using mkdependHS, I am getting errors because the
tool can not find .hi files for modules which are imported
from a library in some other directory than the one I'm
making in.
Is this an error, and if not, how do I solve this?
Thanks in advance,
Marc van Dongen
: Hi there,
:
:
:
: While using mkdependHS, I am getting errors because the
: tool can not find .hi files for modules which are imported
: from a library in some other directory than the one I'm
: making in.
:
: Is this an error, and if not, how do I solve this?
:
This is embarrassing. As so
with different input caused a segmentation
fault after more than 2000 seconds.
In both cases I was running with a +RTS -PT -RTS run-time
option.
Regards,
Marc van Dongen
The following won't compile under 3.00
> data Blah = Blah
> type Tuple = (Blah,Int)
> instance Show Tuple where
> showsPrec _ _ _
> = error []
No instance for: `Show Blah'
arising from use of `PrelBase.$mshowList', at tmp.lhs:8
I know that instances of classes shouldn't be ty
{-rHG-} (Pol.Polynomial{-rHB-} $x0_ts1Kze
$x1_ts1Kzd)) PrelBase.Integer{-3g-}
If more details are needed please call.
Regards,
Marc van dongen
ce Ord Blah
> instance Read Blah
> instance Show Blah
Adding the previous 4 dummy instance declarations makes
this fragment to become acceptable to ghc-3.00.
> instance Show Tuple where
> showsPrec _ _ _
> = error []
Regards,
Marc van Dongen
aven't got a clue of what causes it.
Feel free to contact me for more information.
Regards,
Marc van Dongen
________
Marc van Dongen, Computer Science Dept | phone: +353 21 903083
University College Cork, NUIC
spj:
: Sergey, Marc
:
: I've had a look at your Docon thing.
It really is Sergey's thing. He deserves all the credit.
[snip]
Cheers,
Marc
Hi there,
I suspect the program included below is
incorrect. Nevertheless it compiles fine under
ghc-3.01 patchlevel 0.
> module Main( main ) where
> import List( genericLength )
> main = putStr (show integral) >>
>putStr "\n">>
>return ()
> where integral = gen
[snip]
: > > module Main( main ) where
: > > import List( genericLength )
: > > main = putStr (show integral) >>
: > >putStr "\n">>
: > >return ()
: > > where integral = genericLength []
[snip]
: This is a legal Haskell program. The (ambiguous) type of `integra
Hello there,
While compiling some source code of mine, containing
the following lines (line numbers included):
321
322 > minCycleLength :: Vertex -> (MarcMap Vertex (MarcMap Vertex v)) -> Maybe Int
323 > minCycleLength v g
324 > = mcl ws g''
325 > where ws = mapDom (rdMap g v)
326 >
Hi there,
In ghc-3.02 the following program compiles fine.
> module Main( main ) where
> f :: String -> Int
> f "=<" = 0
> f "=" = 0
> g :: [Char] -> Int
> g ['=','<'] = 0
> g ['='] = 0
> main = return ()
However, for ``f'' the following is reported.
tmp.lhs:4:
Pattern match(es) a
Hi there,
While trying to compile the following eroneous program
> module Buggy( buggy ) where
> buggy = _
with ghc-3.02, ghc decided to go down with the following
error message:
reader/ReadPrefix.lhs:159: Non-exhaustive patterns in case
Hope this helps,
Marc
Hi there,
I would like to report the following.
After splitting up one module in two seperate modules in
two different files, I ended up with something as follows:
swift> more A.lhs
> module A( a ) where
> a = 1
swift> more B.lhs
> module A( b ) where
> import A( a )
> b = a + a
The compilat
Hi there,
> module F( f ) where
> class C a b where
> f :: a -> b -> b
> instance C Bool b where
> f a b = if a then b else b
> instance C (IO Bool) (IO b) where
> f a b = a >>= \bool -> f bool b
Leads to a ghc-3.02 crash:
stranal/SaAbsInt.lhs:668: Non-exhaustive patterns in function `a
Hi there,
While compiling some stuff with 4.00 I get the following
output before compilation stops.
[snip]
GNU CPP version 2.7.2 (sparc)
#include "..." search starts here:
#include <...> search starts here:
.
/usr/local/ghc-4.00/lib/ghc-4.00/includes
/usr/local/ghc-4.00/lib/ghc-4.00/include
Hi there,
I can't see why the following will not compile with 3.02
> module Main( main ) where
> data A a = A (a,a)
> instance (Show a,Ord a) => Num (a,a) where
> (+) a a' = a
> instance (Show a,Ord a) => Eq (A a) where
> (==) a a' = True
> instance Show (A String) where
> showsPrec
went wrong. If you need more
info to know what is going on, please let me know and
I may give it a shot to isolate the problem.
Regards,
Marc van Dongen
**
ghc-4.00 -c Filnam.lhs -recomp -v -fglasgow-exts -cpp
-hi-diffs -syslib
Hi there,
This is ghc-4.01
I have not seen an instance of such a message
for non-overlapping patterns for non-string types.
As part of a where clause I have (modulo renaming)
two equations of the following form:
f Pat1 p2 p3 p4 = rhs1
f Pat2 p2 p3 p4 = rhs2
where Pat1 and Pat2 a
Hello again,
Sorry about my previous ``report'' on
overlapping patterns. I overlooked the
fact that the first ``ground'' instance
appearing in the function definition was,
in fact, a variable.
GHC really works!
Regards,
Marc
ng
quotes (` and ') around parts of its messages. This becomes *very*
confusing when the last part of the message consists of an
identifier suffixed by a one or more quote symbols.
Regards,
Marc van Dongen
ile. It seems as if
something goes wrong when exporting functions across
different modules.
Regards,
Marc van Dongen
Hi there,
This is related to at least two earlier
messages in this forum which sadly enough I
only noticed today.
It probably is a feature that since then
trace doesn't print Trace on/Trace off anymore.
Is there any reason for not doing this
anymore? In my opinion it makes tracing
very awkward.
the problem.
However, the more equations there are in the definition
of a function, the more difficult I have found it to locate
the cause of errors resulting in error messages as the one
above.
Would it be possible to provide an explanation as to what
could have caused such errors?
Regards,
Marc van Dongen
mult1 = (1-maxBound)*(1-maxBound)
>mult2 = (maxBound-1)*(maxBound-1)
outputs:
According to ghc-4.02 (1-maxBound)^2 = 4
According to ghc-4.02 (maxBound-1)^2 = 4
Mod maxBound the result of both multiplication should have been 1.
Maybe it is better to rely on Integers.
Regards,
Marc van Dongen
eras it should have output:
0
1
Fail: Prelude.tail: empty list
Regards,
Marc van Dongen
Integer = S# Int#-- small integers
| J# Int# ByteArray# -- large integers
Regards,
Marc van Dongen
-O2?
Regards,
Marc van Dongen
_______
Marc van Dongen, CS Dept | phone: +353 21 903578
University College Cork, NUIC | Fax: +353 21 903113
College Road, Cork, Ireland | Email: [EMAIL PROTECTED]
ormIO $
>_casm_ gcdSBSZh a sb b >>= \g ->
> case g of (I# g) -> return (S# g)
Hope that helps.
Regards,
Marc van Dongen
c Exception (core dumped)
Regards,
Marc van Dongen
Hi there,
ghc-4.04's parser does not seem to like expressions of the following kind:
case a of
(#I a) ->
and
blah (# sa, a, #)
Upon using these expressions it dies due to an internal Happy error.
Hope this helps,
Marc van Dongen
: I've put up a new sparc-sun-solaris2 build of 4.04 on the web site. This
: one at least has no strange empty modules in libHS.a. I have no idea what
: went wrong with the first one, but we've been having some strange NFS
: corruptions here so I have my suspicions.
:
: Let me know if there are
Hi There,
When I noticed that my mkdependHS didn't work any more
I noticed that the release notes for ghc-4.04 mentioned
that this program had become obsolete and that ghc-4.04 -M
should be used instead.
The problem I have with ghc-4.04 -M is that is seems to
be *very* reluctant to generate de
in the Makefile.
I think I'll wait until I am refered to some form
of documentation.
Thanks again,
Marc van Dongen
or more.
That's interesting. I hadn't noticed that section. I looked at
Section 2 (Using GHC/command line options) which doesn't make any reference
to the -M flag.
I'll try again.
Thanks.
Regards,
Marc van Dongen
sem to run fine.)
Regards,
Marc van Dongen
___
Marc van Dongen, CS Dept | phone: +353 21 903578
University College Cork, NUIC | Fax: +353 21 903113
College Road, Cork, Ireland | Email: [EMAIL PROTECTED]
Hello,
I just found out that module definitions of the
following kind
> module Commas( , , ) where
are accepted by ghc. One comma also seems to be fine.
Regards,
Marc van Dongen
same from cvs yesterday. After updating
today this failed.
Any suggestions on how to fix this will be greatly appreciated.
Thanks in advance.
Marc van Dongen
*** log ***
===fpt
Hello there,
CVS: make all fails with the following message:
AsmCodeGen.lhs:24:
Module `RegAllocInfo' does not export `findReservedRegs'
Compilation had errors
make[2]: *** [nativeGen/AsmCodeGen.o] Error 1
make[1]: *** [all] Error 1
make: *** [all] Error 1
Regards,
Marc
required.
Regards,
Marc van Dongen
ow to fix this?
Thanks in advance.
Regards,
Marc van Dongen
against applying the
same fix for 4.06?
Regards,
Marc van Dongen
--
Marc van Dongen, CS Dept | phone: +353 21 903578
University College Cork, NUIC | Fax: +353 21 903113
College Road, Cork, Ireland | Email: [EMAIL PROTECTED]
Hi there,
Make all fails due to the fact that some functions
in nativeGen/MachCode are undeclared.
Log appended.
Regards,
Marc van Dongen
--
Marc van Dongen, CS Dept | phone: +353 21 903578
University College Cork, NUIC | Fax: +353 21 903113
College Road, Cork, Ireland
Hi there,
I just updated cvs and now make fails because of a
Profiling.c:462: strucuture has no member named `emitted'
thingy. Log appended.
Regards,
Marc van Dongen
--
Marc van Dongen, CS Dept | phone: +353 21 903578
University College Cork, NUIC | Fax: +353 21 9
Hello again,
When carrying out a make boot with cvs this caused a problem
because of the following:
mkdependHS-inplace: can't open directory haxml/lib
I have appended a log.
Regards,
Marc van Dongen
--
Marc van Dongen, CS Dept | phone: +353 21 903578
University College Cork,
yesterday.
Thanks. Mike Gunter also pointed me in this right direction.
Regards,
Marc
--
Marc van Dongen, CS Dept | phone: +353 21 903578
University College Cork, NUIC | Fax: +353 21 903113
College Road, Cork, Ireland | Email: [EMAIL PROTECTED]
Hello again,
When making cvs it halts because of a
Profiling.c:462: parse error before `<'
I have appended a log.
Regards,
Marc van Dongen
--
Marc van Dongen, CS Dept | phone: +353 21 903578
University College Cork, NUIC | Fax: +353 21 903113
College Road, Cork,
7;s problem by hand,
: hence the conflict), then just remove Profiling.c and cvs update to recover
: the stock version.
Thanks, that solved that problem. Now I get a:-(
StixPrim.lhs:6:
Could not find valid [boot] interface file `OrdList'
Any suggestions? Log appended.
Regards,
Marc van Don
thmetic to be the cause of the problem.
I'll try to locate the error and let you know of
my findings.
Regards,
Marc van Dongen
--
Marc van Dongen, CS Dept | phone: +353 21 903578
University College Cork, NUIC | Fax: +353 21 903113
College Road, Cork, Ireland | Email: [EMAIL PROTECTED]
ll crashes. With -O it does not.
: With -O2-for-C it does not.
Hi Macin,
I installed gcc-2.95 some months ago and downgraded
to 2.8.1 because I couldn't get it running. gcc-2.8.1
seemed to work fine (until a few days ago).
Regards,
Marc van Dongen
--
Marc van Dongen, CS Dept | phone:
gards,
Marc van Dongen
--
===fptools== Recursively making `all' in glafp-utils ghc hslibs ...
PWD = /newdisk/dongen/c
George Russell ([EMAIL PROTECTED]) wrote:
: Marc van Dongen wrote:
[error at line 629]
: Odd, because I get (from the anon-cvs repository)
:
: /usr/local/pub-bkb/ghc/ghc-latest/bin/ghc -cpp -fglasgow-exts -Rghc-timing -I.
:-IcodeGen -InativeGen -Iparser
e_array len'
Compilation had errors
make[2]: *** [PackedString.o] Error 1
make[1]: *** [all] Error 1
make: *** [all] Error 1
Log appended.
Regards,
Marc van Dongen
Sven Panne ([EMAIL PROTECTED]) wrote:
: Marc van Dongen wrote:
: > Just to let jou know. I just updated and tried to rebuild
: > ghc from cvs. I then got:
: >
: > PackedString -c PackedString.lhs -o PackedString.o -osuf o
: > [...]
:
: I've already fixed that one (and
George Russell ([EMAIL PROTECTED]) wrote:
: Marc van Dongen wrote:
: > Wouldn't that make Enum depend on Ord?
: > Doesn't seem to make sense if classes are
: > enumerable but not comparable.
Of course above I should have said orderable in stead of comparable.
: What examples
George Russell ([EMAIL PROTECTED]) wrote:
: A logical definition of Enum (to me wearing a mathematical hat)
: would be
:
: succ x = min { y | y > x}
:
Wouldn't that make Enum depend on Ord?
Doesn't seem to make sense if classes are
enumerable but not comparable.
Regards,
Marc
/parsec
make[2]: *** [SocketPrim.o] Error 1
make[1]: *** [all] Error 1
make: *** [all] Error 1
Just to let you know. Log appended.
Regards,
Marc van Dongen
&& ./configure \
&& make boot \
&& make all
Regards,
Marc van Dongen
me for further info:.
Regards,
Marc van Dongen
Hello all,
One small buglet in ghc-4.06:
When trying to compile one of my programs the following
was generated as part of an error message:
where
a2s = ! arr
The last line should have been:
a2s = (!) arr
That's all.
Regards,
Marc van D
Hi Simons,
The problem I reported a few days ago seems to be solved.
Furthermore ghc-4.07 seems to be a *lot* faster in compiling
thingies. I haven't tested the speed of the executables yet.
Great work.
Regards,
Marc
--
Marc van Dongen, CS Dept | phone: +353 21 4903578
Unive
Marcin 'Qrczak' Kowalczyk ([EMAIL PROTECTED]) wrote:
[ghc-2.95 problem]
Hi Marcin,
I had problems with ghc-2.95 as well and decided to
downgrade to 2.8.1
Regards,
Marc van Dongen
--
Marc van Dongen, CS Dept | phone: +353 21 4903578
University College Cork, NUIC | Fax:
Hi there,
I don't know if this is a known problem.
The ``problem'' with mkdependHS is when
it is used in conjunction with happy.
The imports in the .ly file are not recognised
and one has to rebuild sources by hand.
I am surprised I never noticed this before and
it isn't a big problem. Just a t
Hello again,
Please ignore my previous email. When used properly
mkdependHS *does* indeed recognise dependencies in
happy input files. The reason why it didn't work for
me was because I didn't have a *.ly argument in my
makefile.
Sorry for the confusion.
Regards,
Marc
free to contact me for further information.
Regards,
Marc van Dongen
--
Marc van Dongen, CS Dept | phone: +353 21 4903578
University College Cork, NUIC | Fax:+353 21 4903113
College Road, Cork, Ireland | Email: [EMAIL PROTECTED]
Sven Panne ([EMAIL PROTECTED]) wrote:
: [EMAIL PROTECTED] might be the more appropriate list.
A reader of that list asked me explicitly not to
send it to that list because he thought it wasn't
appropriate to sent cvs-bug messages to that list:-)
I'll send further error messages to cvs-ghc in th
heses is not ok.
Hope this helps.
Regards,
Marc van Dongen
--
Marc van Dongen, CS Dept | phone: +353 21 4903578
University College Cork, NUIC | Fax:+353 21 4903113
College Road, Cork, Ireland | Email: [EMAIL PROTECTED]
ere the 5 refers to the last line containing b.
Hope this helps.
Regards,
Marc van Dongen
--
Marc van Dongen, CS Dept | phone: +353 21 4903578
University College Cork, NUIC | Fax:+353 21 4903113
College Road, Cork, Ireland | Email: [EMAIL PROTECTED]
The annotations were added in a file containing
type and data definitions only. The compilation
of that file went fine. The compilation of another
one depending on the types went wrong:-(
I have attached a log.
Let me know if you need some more info.
Regards,
Marc van Dongen
--
Mar
f 32.
Regards,
Marc van Dongen
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