On Mon, Aug 8, 2016 at 1:27 PM, Ryan Newton <rrnewton@gmail.com> wrote:

As usual? So it is ok to segfault GHC? Elsewhere it says "in the safe language you can trust the types", and I'd always assumed that meant Safe Haskell is a type safe language, even in the IO fragment.

Pretty sure it's impossible to allow IO without enabling all of it one way or another. And as soon as you allow *any* IO, you're open to various kinds of failures including segfaults. The only way you will get your type system to prevent that is fully specified dependent typing both in your program *and in the OS level interfaces*. I wish you luck on the latter.

brandon s allbery kf8nh sine nomine associates

allbery.b@gmail.com ballbery@sinenomine.net

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