Proposal: Add concatMapM function (#2042)

[Thomas Schilling]

On Tue, 2008-01-29 at 12:18 +0000, Neil Mitchell wrote:
> Hi
> 
> >    1. In favor:
> >       - Twan van Laarhoven
> >       - Isaac Dupree
> >       - Don Stewart
> >       - Neil Mitchell
> >
> >    3. Opposed to any additions to the base library:
> >       - Bulat Ziganshin
> 

Is concatMapM vs concat <$> mapM really such an improvement?  Maybe the
proposal should rather be to remove concatMap, for it is merely a
3-character shorter version of concat . map...

> I don't think 4 people is quite enough to overrule one persons
> objections, so I'd suggest that anyone reading this thread who does
> want this to go in (as it stands, without generalisation) should shout
> up now. I'd guess another couple of me-too's is enough to have a
> consensus.
> 
> To add one more me-too, Matthew Naylor
> (http://www-users.cs.york.ac.uk/~mfn/) says:
> 
> > (+1) Me too.
> 
> Thanks
> 
> Neil
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