> On Jan 16, 2018, at 15:32 , Xiaodi Wu via swift-evolution
> <swift-evolution@swift.org> wrote:
>
> On Jan 16, 2018, at 14:30 , Nevin Brackett-Rozinsky via swift-evolution
> <swift-evolution@swift.org> wrote:
>>
>> That only works for numbers which don’t overflow the integer literals
>> though. If we want a really large or small value then we have to split it in
>> pieces:
>>
>> func moles <T: FloatingPoint> (particles: T) -> T {
>> let avogadroNumber: T = 6_022_140_857 * 100_000_000_000_000
>> return particles / avogadroNumber
>> }
>>
>> It would be much nicer to write “let avogadroNumber: T = 6.022140857e23”.
>>
>
> You could write:
>
> func moles<T : FloatingPoint & LosslessStringConvertible>(particles: T) -> T {
> let N_A = T("6.02214085774e+23")!
> return particles / N_A
> }
You're not seriously proposing this alternative, are you? I'm with Nevin on
this: “let avogadroNumber: T = 6.022140857e23”.
--
Rick Mann
rm...@latencyzero.com
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