Hello,
I am having a bizarre Haskell problem that I am having difficulty
debugging. I am not positive this is a compiler problem, but my results
are not making any sense.
I have attached a few source files which compiled with ghc-5.04.2
running under Win95. The files were compiled as:
ghc -c
Okay, here's a weird one. There's something wrong with the
ffi when using
-O and the foreign imports are from another module. For example, our
foreign module, foo.c contains functions:
void* openFile(char*fn);
void closeFile(void*f);
float readFloat(void*f);
which are
I am having a bizarre Haskell problem that I am having difficulty
debugging. I am not positive this is a compiler problem, but
my results
are not making any sense.
I have attached a few source files which compiled with ghc-5.04.2
running under Win95. The files were compiled as:
ghc
I have found what causes the bug and implemented a possibly fix for it.
The problem has to do with source types that aren't expanded before
tidying them.
Here is a small example where the error occurs:
-
module Test where
newtype A a = A (forall b. b - a)
test :: forall q b. q - A b
test
