Comments (2)
quchen
commented on May 18, 2024
Whether you consider IO to be pure depends on who you ask in which context. There is only one function that can perform IO and that's main (apart from black magic), and main is called by the runtime, so you have ordinary IO values during compilation that have nothing to do with side effects. On the other hand, the purpose of IO is to be performed of course, causing arbitrary side effects, so it has an impure feeling to it. I don't think I can answer the question of whether IO is pure or not well enough to write about it to be honest :-|
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quchen
commented on May 18, 2024
I'll close this because I don't know what to do with the suggestion right now. I'll keep an eye open for IO-purity-related discussions in the future though.
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Related Issues (20)
- reference to Data.Text.readMaybe, which does not exist
- Questionable claim in MFP2 HOT 4
- Innacuracy due to GHC 7.10 in Monad hierachy. HOT 1
- maybeLoeb HOT 2
- 'Write yourself a Brainfuck in an hour' section 2, exercise 3 confusing wording HOT 1
- `The second Functor law is redundant` is not proper HOT 3
- Remove warning from the second functor law article HOT 1
- Hindley-Milner Inference Oddity w/ Twice Combinator HOT 3
- fbut: (\p1 p2 -> e) is not (\p1 -> \p2 -> e) HOT 3
- Invalid proof? HOT 3
- loeb moeb swing HOT 2
- Small slip with $ HOT 4
- Inferred (rank 1) type of moeb could be more general HOT 1
- (a `op`) is \x -> a `op` x HOT 2
- State where not-bottom assumption was used HOT 3
- loeb: how to detect non-termination? HOT 1
- zipWith question: drop in splitMiddle HOT 1
- zipWith question: flip in rotateUntil HOT 1
- zipWith question: Correctness of optimized Polygon Eq HOT 1
- Another approach to fix HOT 1
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