[Haskell-cafe] replicateM should be called mreplicate?

[David Menendez]

On Mon, Apr 6, 2009 at 1:46 PM, Luke Palmer <lrpalmer at gmail.com> wrote:
> On Mon, Apr 6, 2009 at 11:42 AM, David Menendez <dave at zednenem.com> wrote:
>>
>> Of course, this suggests that mfix should be fixM, so perhaps a better
>> distinction is that mplus and mfix need to be defined per-monad,
>> whereas filterM and replicateM are generic.
>
> Don't you think that is an incidental distinction, not an essential one?  It
> would be like naming our favorite operations mbind and joinM, just because
> of the way we happened to write the monad class.

Fair enough. I only added that comment when I noticed that my
explanation for picking replicateM over mreplicate also applied to
mfix.

Looking through Control.Monad, I see that all the *M functions require
Monad, whereas the m* functions require MonadPlus (or MonadFix). I
wonder to what extent that pattern holds in other libraries?

-- 
Dave Menendez <dave at zednenem.com>
<http://www.eyrie.org/~zednenem/>