[Haskell-cafe] Re: [Haskell] unsafePerformIO and optimizations

Am Montag, 8. August 2005 11:33 schrieb Simon Marlow:

[...]

This way leads to madness - GHC's optimisations are simply not designed to provide any kind of guarantee about maintaining sharing properties. The guidelines we've given for unsafePerformIO are enough to cover simple uses like global variables. We should probably amend the documentation to say this.

How about unsafeInterleaveIO? Are there any optimizations that could be dangerous here or is the bevavior of unsafeInterleaveIO independent of optimizations?

Cheers, Simon

Best regards, Wolfgang