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by mrkeen 29 days ago
Oh cool. It's newtype from Haskell 1.3 (1996).

https://www.haskell.org/definition/from12to13.html#newtype
1 comments
mrkeen 29 days ago
No idea why dfa11's sibling comment got nuked. Looks correct to me.

I guess you can probably do the same with Unpacking.

https://wiki.haskell.org/Performance/Data_types

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