I just built an FFI Interface for a camera in C++ called from Haskell, it would be nice to see an interface done for C++ with objects. I got it working pretty quickly searching around from other sites, but it would be cool if it was all in one place.

Sort of off topic, I had an issue where the main in C++ ran perfectly fine calling into what I believe to be a singleton, but calling from Haskell led to that call freezing every time. If I put the call to the singleton into a static block, it runs fine calling from Haskell. Is this probably the "Static order initialization fiasco"?

Charlie

On Sat, Nov 8, 2014 at 10:54 AM, Alex Petrov <oleksandr.petrov@gmail.com> wrote:
Hi Everyone,

I've recently started working on Haskell FFI Tutorial [1]. The repository already 
contains code that explains how to:

  * (expressively) represent C `struct` in Haskell code
  * call C code from Haskell
  * call Haskell code from C
  * operate on nested `struct`s 
  * operate on `struct` arrays
  * decode `unions` 
  * read and write C fixed-length strings and Pointer-type Strings
  * how to import functions from, for example, stdlib

I'm still working on more story-like writeups, but the first one (about how to call Haskell 
from C) is already available [2].

If you have any feedback / comments / questions, know how to improve it or 
would like to see more things covered, just ping me. 

Thanks


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