My problem is about tagging haskell expressions with the types I want
them to have. What is the compiler error "Can't for-all tye type
variable(s) `wef' in the inferred type `CONS ei f7t34 wef'" about? I
mean, when I get it, how can I get more information about what went
wrong? (I am
Arthur Gold writes:
Now I'm having a problem building 3.01: "No rule to make target
`bison.simple', needed by `syntax.tab.o'
hi,
I'm guessing this happens while trying to do a `make boot' in
ghc/utils/ugen. Could you send us the output of doing a `make boot'
there? I'm puzzled as to why
Alastair Reid writes:
is there a way in Hugs to convert a state transformer into a IO
computation? In GHC "IO a" is (or perhaps used to be) defined as
"ST RealWorld a", so you can use state transformers in the IO monad.
I don't think that works with GHC anymore.
Yes it does,
is there a way in Hugs to convert a state transformer into a IO
computation? In GHC "IO a" is (or perhaps used to be) defined as
"ST RealWorld a", so you can use state transformers in the IO monad.
I don't think that works with GHC anymore. But this (untested) code ought
to do the trick
