[Haskell-cafe] [random-fu] sampleRVar with StdGen in RWS?

Sergiu Ivanov sivanov at colimite.fr
Sat Aug 4 22:16:58 UTC 2018

Hi Dominic,

Thanks for your answer!  Here it goes:


I essentially copied and pasted State instances.  (Not sure why
monadRandom is used for PureMT, but not for StdGen, though.)


Thus quoth  dominic at steinitz.org  on Sat Aug 04 2018 at 12:03 (+0300):
>> > I suppose you could write an orphan instance for RWST if you really
>> > wanted to.
>> That's what I'll most probably do for my small project, but I was
>> wondering whether it made sense to make a pull request to random-fu.  To
>> me, having a MonadRandom for both StateT and RWST seems very natural.
> Please do make a PR - I will accept it immediately :)
> Dominic Steinitz
> dominic at steinitz.org
> http://idontgetoutmuch.wordpress.com
> Twitter: @idontgetoutmuch
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