default instance for IsString

Greg Weber greg at
Sun Apr 22 17:32:30 CEST 2012

so how can I update the documentation? I asked some of the most
experienced Haskell users at the Hackathon about this, and looked
through any documentation I could find and there was nothing
indicating I could do what you sent in your last message.

On Sun, Apr 22, 2012 at 8:15 AM, Markus Läll <markus.l2ll at> wrote:
> The core of it is in the GHC docs' overloaded strings section [1].
> It could be clearer though -- reading about defaulting in the reports,
> in the type defaulting section of GHC docs and in [1] can be a bit
> confusing.
> [1]
> On Sun, Apr 22, 2012 at 4:54 PM, Greg Weber <greg at> wrote:
>> Thanks Markus, I think you have saved the day!
>> Even after googling for this extension and searching in the manual I
>> am still coming up pretty blank.
>> Is there somewhere I missed where this is documented or somewhere I
>> can contribute documentation?
>> On Sun, Apr 22, 2012 at 4:47 AM, Markus Läll <markus.l2ll at> wrote:
>>> ExtendedDefaultRules
> --
> Markus Läll

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