Re: [Haskell-cafe] Get out structured data from a C/C++ library inHaskell

Il giorno 08/ago/2014, alle ore 20:45, Erik Hesselink ha scritto:

On Fri, Aug 8, 2014 at 7:51 PM, Nicola Gigante wrote:

...

Moreover, I see that peek and poke return IO a, so I can't pretend that the interface that I'm wrapping is pure, can I?

I believe that providing a pure interface to FFI functions was in fact the reason unsafePerformIO was introduced. So if you know the function you're wrapping is in fact pure, you can use it to provide a pure Haskell interface to it.

Yes it makes sense, thank you :)

Erik

Nicola