> On Apr 14, 2016, at 11:01 PM, Chris Lattner via swift-evolution
> <[email protected]> wrote:
>
> On Apr 14, 2016, at 9:49 PM, Stephen Canon <[email protected]
> <mailto:[email protected]>> wrote:
>>> On Apr 14, 2016, at 4:55 PM, Stephen Canon via swift-evolution
>>> <[email protected] <mailto:[email protected]>> wrote:
>>>> Provide basic constants (analogues of C's DBL_MAX, etc.)
>>> Nice, have you considered adding pi/e and other common constants? I’d
>>> really really like to see use of M_PI go away… :-)
>>
>> That’s a reasonable suggestion. I’m not sure if FloatingPoint is the right
>> protocol to attach them to, but I’m not sure that it’s wrong either. I’d be
>> interested to hear arguments from the community either way.
>
> I’m not sure where the right place is either, I just want them :-)
> Seriously though, the notion of pi seems to make sense for both decimal and
> binary fp types, it seems base independent.
Incidentally, if you make pi and e be static members of the type, we should get
a pretty fluent style, along the lines of:
let x = someDouble * 2 * .pi
I agree that there is a concern about deciding “which” constants to include.
I’ll let you and the numeric elite figure that out :-)
-Chris
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