On Thu, 2009-10-01 at 13:00 -0400, John Van Enk wrote:
Hi Duncan,
Yes, I forgot to leave out that I'd like to see 'size_t' mapped to CSize.
As a (dirty) workaround, one can use 'castPtr' as the marshaler when dealing with pointers to 'size_t'. I'm a little more concerned about FunPtr's (though 'castPtr' still makes the issue go away).
Here's my specific case dealing with function pointers:
Ohhh, if you're dealing with pointers to CSize then it's easy, c2hs supports that directly. See the c2hs user guide section on the pointer hook. {# pointer *size_t as CSizePtr -> CSize #} This tells c2hs that when it sees a *size_t type in a function argument or result that it should be imported as Ptr CSize. It generates a type alias and uses that when it imports functions eg: {# pointer *size_t as CSizePtr -> CSize #} foo :: Ptr CSize -> IO () foo = {# call foo as raw_foo #} generates: type CSizePtr = Ptr (CSize) foo :: Ptr CSize -> IO () foo = raw_foo foreign import ccall safe "foo.chs.h foo" raw_foo :: CSizePtr -> IO () Duncan