Hi,
I have this in my .gc file:
newtype Pid = MkPid Int deriving (Eq,Ord)
%dis pid a = MkPid (int a)
%const Pid [ nullPid = {PJSL_NULL_PID} ]
For the %const, green-card generates
nullPid :: Pid
nullPid = ``PJSL_NULL_PID''
and ghc-3.01 complains
Pjsl.hs:102:
No instance for `PrelGHC.CCallable Pid'
(arising from the ``literal-literal'' `PJSL_NULL_PID' at Pjsl.hs:102)
I also have
%const Int [
% testKind = {PJSL_TEST_KIND}, ...
and
testKind:: Int
testKind = ``PJSL_TEST_KIND''
goes through just fine, as expected
Fermin
-------------------------------------------------------------------------------
Fermin J. Reig
PhD student, Department of Computing Science, University of Glasgow
http://www.dcs.gla.ac.uk/~reig
