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0 pointseru1y ago0 comments

You can also use the State monad, instead of IORef.

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2 comments · 1 top-level

kqr1y ago· 1 in thread

Not while printfing. That is what takes a MonadIO m => StateT s m () transformer, or at least a stack with a Writer in it.

eruOP1y ago

Yes, that's true.

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