On 20 October 2014 21:46, Jeremy Yallop <[email protected]> wrote:
> This discussion is a useful reminder that ctypes really needs support
> for retrieving struct layout details from the declared API. I'll look
> at how to add that support later this week and report back.
I've added support for retrieving struct layout from C in a pull request:
https://github.com/ocamllabs/ocaml-ctypes/pull/62
It works in a very similar fashion to cstubs: you put your struct
declaration inside a functor
module Bindings(S : Cstubs_structs.STRUCT) =
struct
open S
let cell = structure "cell"
let payload = field cell int "payload"
let next = field cell (ptr cell) "next"
let () = seal cell
end
and then call Cstubs_structs.write_c to generate an ML module with
which to instantiate the functor.
The pull request has more details and some illustrative tests.
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