John Peterson wrote:
| instance Show (a - b) where
| showsPrec _ _ = showString " Function "
We had the same problem in QuickCheck. When testing
properties quantified over functions, we got a type error
because suddenly "a - b" is not an instance of Show
anymore.
Now, if we had taken
I am setting up Haskore on a SuSe 6.3 Linux system, using the Haskore.Zip
file from haskell.org/haskore/ and Hugs98-991018.
On loading Haskore Hugs reports the following
Prelude :load Haskore
Reading file "/usr/share/hugs/lib/haskore/Haskore.hs":
Reading file
This is a simple problem to fix - in Haskell 98 you need the following
so that functions are in Show:
instance Show (a - b) where
showsPrec _ _ = showString " Function "
I'll add this to the Haskore release. If you add this at the end of
Basics.lhs you'll be able to load Haskore.
On Tue, 01 Feb 2000, you wrote:
This is a simple problem to fix - in Haskell 98 you need the following
so that functions are in Show:
instance Show (a - b) where
showsPrec _ _ = showString " Function "
I'll add this to the Haskore release. If you add this at the end of
Basics.lhs
