Thanks, Henning, Jake, and Edward, for the quick answer! On 18.05.13 11:34 PM, Edward Kmett wrote:

Because it is supplied by the Foldable superclass.

On Sat, May 18, 2013 at 5:21 PM, Andreas Abel mailto:andreas.abel@ifi.lmu.de> wrote:

On some haskell list I read that for lists,

mapM_ f l

is more space-efficient that just

void $ mapM f l

Any reason why mapM_ is missing from Data.Traversable?

Cheers, Andreas

-- Andreas Abel <>< Du bist der geliebte Mensch.

Theoretical Computer Science, University of Munich Oettingenstr. 67, D-80538 Munich, GERMANY

andreas.abel@ifi.lmu.de mailto:andreas.abel@ifi.lmu.de http://www2.tcs.ifi.lmu.de/~__abel/ http://www2.tcs.ifi.lmu.de/~abel/

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-- Andreas Abel <>< Du bist der geliebte Mensch. Theoretical Computer Science, University of Munich Oettingenstr. 67, D-80538 Munich, GERMANY andreas.abel@ifi.lmu.de http://www2.tcs.ifi.lmu.de/~abel/