hello,
i think this is a bug:
class C a b | a -> b where
f :: b
Hugs reports: Ambiguous type signature in class declaration
*** ambiguous type : C a b =| b
*** assigned to : f
GHC accepst it, which seems reasonable.
bye
iavor
hi
why is the Mandrake 8.1 rpm between 3 and 4 times bigger than any
other binary distribution on the site? by the way the redhat 7.2 rpm
seems to work on mandrake 8.1 and it is only 610k.
bye
iavor
Hi, I can't find a note of this in the hugs bugs list:
With hugs98 December 2001 (more specifically the hugs rpm for Linux
Mandrake that Sigbjorn Finne pointed out on the mailing list, running on
Linux 2.4.17 on x86), if I have a script that tries to load a module that
gives a problem using (say) `hugs -98 makeMakefile.hs' I get
Reading file "/usr/share/hugs/lib/Prelude.hs":
Reading file "makeMakefile.hs":
[my ok modules snipped]
Reading file
"/home/PRG_DEV/SRC/SCRIPTS/HASKELL/MAKEFILE_GENERATOR/Trie.hs":
Reading file "/usr/share/hugs/lib/exts/UnbalancedSet.hs":
Reading file "/usr/share/hugs/lib/exts/EdisonPrelude.hs":
[lots of modules snipped]
Reading file "/usr/share/hugs/lib/exts/QuickCheck.hs":
Reading file "/usr/share/hugs/lib/exts/UnbalancedSet.hs":
Reading file "makeMakefile.hs":
ERROR "makeMakefile.hs" - Entity "foldl1" imported from module
"UnbalancedSet" already defined in module "Prelude"
which is what I'd expect when there's a problem. If I then comment out the
import of UnbalancedSet.hs in makeMakefile.hs and do :r I get
Reading file "makeMakefile.hs":
Hugs session for:
/usr/share/hugs/lib/Prelude.hs
[lots of modules skipped]
/usr/share/hugs/lib/exts/EdisonPrelude.hs
/usr/share/hugs/lib/exts/Sequence.hs
[lots of modules that shouldn't be there now skipped]
/usr/share/hugs/lib/exts/QuickCheck.hs
/usr/share/hugs/lib/exts/UnbalancedSet.hs
makeMakefile.hs
ie it has now loaded the remaining files (which are ok) but it still says
that the modules it loaded due to the attempted import of UnbalancedSet.hs
and UnbalancedSet.hs are also present. (Trying :t on things exported by
UnbalancedSet.hs suggests they aren't.)
It's not a major bug, but it did confuse me for a while.
___cheers,_dave_________________________________________________________
www.cs.bris.ac.uk/~tweed/|`...heat generated by its microprocessors will
email:tweed@cs.bris.ac.uk|slope upward exponentially, reaching the power
work tel:(0117) 954-5250 |density of a nuclear reactor before 2010'-Intel
Hugs still (again?) has a thread scheduling behavior that breaks Fran
immediately. The required Prelude tweak is described at
http://research.microsoft.com/~conal/Fran/news.htm under the "1.15"
heading. Will this Prelude change get made at some point?
- Conal
