Re: [Haskell-cafe] Stable pointers: use of cast to/from Ptr

13 Feb 2012

      You mean I have to use a type like StablePtr (IORef Stuff)?
Because there I can only "peek" (deRefStablePtr) the pointer, not "poke" it.

I take it I should return to C a StablePtr to the new value if I don't want
to use IORefs...

Or else I have to use regular Ptrs with Foreign.Marshall.Alloc.malloc

2012/2/12 Antoine Latter <aslatter@gmail.com>
...
On Sun, Feb 12, 2012 at 3:09 PM, Yves Parès <yves.pares@gmail.com> wrote:
...
But then,
In use case 1), how can a Haskell function modify the data addressed?
http://hackage.haskell.org/packages/archive/base/latest/doc/html/Foreign-Sta...
Antoine