[swift-users] Decimal to Double?

[David Sweeris]

> On Nov 28, 2016, at 09:48, Philippe Hausler via swift-users <swift-users at swift.org> wrote:
> 
> This might be a bit nicer since that is relying on NSNumber bridges. You can bridge to NSDecimalNumber directly like this: 
> 
> (Decimal(1.0) as NSDecimalNumber).doubleValue
> 
> (but perhaps we should consider adding initializers that follow the same pattern as Double that don’t have to bridge to solve the problem)
> 
>> On Nov 28, 2016, at 2:40 AM, Alex Blewitt via swift-users <swift-users at swift.org> wrote:
>> 
>> You can wrap it with an NSDecimalNumber, and then cast it to a Double from there:
>> 
>> Double(NSDecimalNumber(decimal:Decimal(1.0)))
>> 
>> Alex
>> 
>>> On 28 Nov 2016, at 10:13, Rick Mann via swift-users <swift-users at swift.org> wrote:
>>> 
>>> How do I get a Double from a Decimal?
>>> 
>>> TIA,
>>> 
>>> -- 
>>> Rick Mann
>>> rmann at latencyzero.com
>>> 
>>> 
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Does NSDecimalNumber conform to the floating point literal whosywhatsit protocol? If not, wouldn't both of those examples just covert a Double to a decimal and back again? Would there be a purpose to that? Like maybe it'd get rounded differently or something?

Once you have an NSDecimalNumber variable, though, I don't know of any better way than that '.doubleValue' property you and Alex mentioned.

- Dave Sweeris
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