[Haskell-cafe] Fail-back monad

Stephen Tetley stephen.tetley at gmail.com
Wed Mar 28 19:11:24 CEST 2012


Maybe this is a version of William Harrison's DebugT monad with
rollback, listed in his periodic table of effects?

http://www.cs.missouri.edu/~harrisonwl/Presentations/UIUCFM05.ppt

I've never seen a definition of the monad itself...
http://www.haskell.org/pipermail/beginners/2010-January/003371.html



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