Roel van Dijk <[email protected]> writes: > Can anyone provide an example of an error that is prevented by this > warning? When exactly is it dangerous to ignore a monadic function's > return value?
See Neil's original rationale in the bug report: http://hackage.haskell.org/trac/ghc/ticket/3263 Short version: using something like mapM but disregarding the result (rather than using mapM_) can sometimes lead to space leaks. -- Ivan Lazar Miljenovic [email protected] IvanMiljenovic.wordpress.com _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
