Fergus Henderson <[EMAIL PROTECTED]> wrote, > On 30-Nov-2003, David Waern <[EMAIL PROTECTED]> wrote: > > > > Hi. I want to know if it is possible via FFI and GHC to allocate > > haskell data structures and return some kind of handle to their internal > > representation in the haskell runtime to another language that calls > > haskell code (c/c++). > > I haven't tried it myself, but I think the answer is yes: > use the StablePtr type, which in C is the HsStablePtr typedef in "HsFFI.h".
Yes, that is exactly what StablePtrs are meant for. See also the description of the various pointer types at http://www.reid-consulting-uk.ltd.uk/docs/ffi-Common_Problems.html Manuel _______________________________________________ FFI mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/ffi
