fail

Forward-compatible MonadFail class https://prime.haskell.org/wiki/Libraries/Proposals/MonadFail

Version on this page:4.9.0.0
LTS Haskell 9.20:4.9.0.0
Stackage Nightly 2017-12-18:4.9.0.0
Latest on Hackage:4.9.0.0
BSD3 licensed by Herbert Valerio Riedel
Maintained by libraries@haskell.org

Module documentation for 4.9.0.0

This package contains the Control.Monad.Fail module providing the MonadFail class that became available in base-4.9.0.0 for older base package versions.

This package turns into an empty package when used with GHC versions which already provide the Control.Monad.Fail module to make way for GHC's own Control.Monad.Fail module.

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