[Haskell-cafe] Re: StableFunPtr?

Maurí­cio wrote:

Hi,

I've seen that if I'm going to leave a pointer to data in the hands of foreign code, I should use StablePtr so that the value it points to doesn't change.

However, we also usually give FunPtr to foreign code, like when registering callbacks, but I can't found any kind of "StableFunPtr".

Are all FunPtrs stable?

Thanks, Maurício

You can also use StablePtr for callbacks (forkOS uses it). I'm not sure what the difference is between the two in that case though.