Re: [Haskell-cafe] On the purity of Haskell

If seed depends of psudo random event, for example of current systime, we must use IO action. 30.12.2011, 02:47, "Steve Horne" :

BTW - why use an IO action for random number generation? There's a perfectly good pure generator. It's probably handy to treat it monadically to sequence the generator state/seed/whatever but random number generation can be completely pure.

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