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Under GHC 8, use runRW# primop #2

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treeowl opened this issue Sep 19, 2016 · 1 comment
Open

Under GHC 8, use runRW# primop #2

treeowl opened this issue Sep 19, 2016 · 1 comment
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treeowl commented Sep 19, 2016

The UnsafeST module says it's all about working around [https://ghc.haskell.org/trac/ghc/ticket/5916]. That ticket has now been closed thanks to the new runRW# primop. You should probably use that when available. You should also be able to remove the -fno-full-laziness from things using that module.
@wrengr wrengr self-assigned this Feb 25, 2019
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wrengr commented Nov 14, 2021

Note to self: runRW# appears to have been added in base-4.10.0.0 / ghc-8.2.1, and the kinding of the result type was generalized in base-4.13.0.0 / ghc-8.8.1

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