[Proposal] Add default implementation of mappend/mempty in terms of mconcat

[Joachim Breitner]

Hi,

Am Montag, den 27.01.2014, 11:42 +0100 schrieb Sjoerd Visscher:
> This seems rather pointless; I’m having trouble coming up with an
> example where mconcat would be easier or more elegant to implement. Do
> you have an example?

maybe cases where you implement mconcat for performance reasons anyways
(but are there good examples for that?), and then you don’t want to be
bothered with the simple cases....

Greetings,
Joachim

-- 
Joachim “nomeata” Breitner
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