#1951: Add "writer" Monad instance (,) o to Control.Monad.Instances
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Reporter: conal | Owner: jmcarthur
Type: proposal | Status: patch
Priority: normal | Milestone: Not GHC
Component: libraries/base | Version: 6.8.1
Resolution: | Keywords:
Testcase: | Blockedby:
Difficulty: Easy (less than 1 hour) | Os: Unknown/Multiple
Blocking: | Architecture: Unknown/Multiple
Failure: None/Unknown |
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Changes (by jmcarthur):
* status: new => patch
Comment:
The attached patch implements the instance as written, using the
explicitly written out definition for return rather than Applicative's.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1951#comment:8>
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