unsafePerformIO and cooperative concurrency

Ashley Yakeley ashley at semantic.org
Tue Apr 25 21:27:25 EDT 2006

I wrote:

> It's not a matter just of safety, it's a matter of whether its use 
> should be encouraged. FFI is clearly the "right thing" sometimes, 
> unsafePerformIO rarely is.

(wider discussion on Libraries list)

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