[Haskell-cafe] Why purely in haskell?
sebastian.sylvan at gmail.com
Thu Jan 10 15:10:57 EST 2008
On Jan 10, 2008 8:06 PM, Ketil Malde <ketil+haskell at ii.uib.no> wrote:
> "David Roundy" <daveroundy at gmail.com> writes:
> >> > I just want to point out that unsafePerformIO is at the core of the
> >> > (safe) bytestring library. As SPJ et al pointed out, this is crucial
> >> > functionality, and is only unsafe if unsafely used.
> >> In Modula-3 modules using hacks must be explicitly marked as UNSAFE. See
> >> http://www.cs.purdue.edu/homes/hosking/m3/reference/unsafe.html
> >> Maybe this is also an option for Haskell?
> > I don't think this is a good idea.
> I think the point is (should be) to mark functions unsafe when they
> may be unsafe to /use/,
I think using the IO monad for this works well...
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