Proposal: add conversion functions to Data.Fixed.

[Ashley Yakeley]

Might as well, since we already have fromEnum and toEnum (which 
unfortunately convert to Int).

-- Ashley

On 01/12/12 18:14, Edward Kmett wrote:
> To be frank, I would just rather have access to the constructor to Fixed.
>
> It honestly strikes me as silly to have to pay for a division and/or
> multiplication every time I want to access one.
>
> There in an ideological distinction being maintained here about the one
> true usage pattern that has forced me to reimplement Data.Fixed in my
> own code to avoid the overhead. =(
>
> You can bury it in an Internal module or something and load it with
> caveats about how it is a bad idea to use and how you reserve the right
> to change it some day, but without it Data.Fixed remains almost useless
> to me.
>
> The Binary instance can trivially be implemented on top of that, as we
> shoudn't be encoding type (precision) information in the Binary data stream.
>
> -Edward
>
> On Sat, Dec 1, 2012 at 5:54 PM, Ashley Yakeley <ashley at semantic.org
> <mailto:ashley at semantic.org>> wrote:
>
>     On 01/12/12 12:11, Yitzchak Gale wrote:
>
>         Jeff Shaw wrote:
>
>                  In my work I've run into an annoyance: Data.Fixed.Fixed
>         does not
>                  have a
>                  Binary instance in the binary package.
>
>         Ashley Yakeley wrote:
>
>              Just to be clear, this is a modification of binary, not
>         Data.Fixed
>              in base, is that correct?
>
>
>         Hmm, I had understood just the opposite:
>         that the proposal was to add fromFixed/toFixed
>         to Data.Fixed, motivated by the difficulty of things
>         like writing a Binary instance.
>
>
>     Oh yes, you're right. But I don't think it's necessary.
>
>
>     -- Ashley
>
>
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