Hi, I would like to know whether there is a good way to marshal the following structure to C without using pointer arithmetic done by a programmer (as opposed to a tool). typedef struct{ double a[10]; double b[10]; double b[10]; } foo; I don't need this functionality, but it would make Haskell -> C interfaces less flaky. Basically, writing Haskell -> C interfaces seem to be a very unpopular thing to do (as opposed to C -> Haskell interfaces). For example, on Hackage (actually a checkout of a few months ago) there is only one package using pokeArray and it is not pretty; it uses pointer arithmetic and all other kinds of hard-coded addresses. If I change the order of the C fields it will break, if I change the length of the buffer they use, it breaks. Just look at it, and it will break ;) If you are a bit creative, it is possible to make it work already, by using the best features of both hsc2hs and c2hs, but it is hardly elegant. I suppose the real solution would be to extend c2hs with an offsetof function (for which patches already exist, btw), but it might be that I have missed some other solution. -- Best Regards, Ron de Bruijn, Developer, Gamr7