[swift-users] optional variable with ternary operator

[Zhao Xin]

I wonder if it has ever been allowed? I am using Xcode and it never allows
that.
For you specific question, you can use

var number:Int?

let result = (number ?? -1) > 0 ? 1 : 2


Zhaoxin

On Tue, May 9, 2017 at 1:39 AM, Erica Sadun via swift-users <
swift-users at swift.org> wrote:

> I believe this falls under "future directions" for comparison reform.
>
> Here's an example of a short term solution: https://gist.github.com/erica/
> 77b110e17e51dbea7d6934e6582f627f
>
> -- E, who moved this from SE to Swift Users
>
>
> On May 8, 2017, at 10:13 AM, Saagar Jha via swift-evolution <
> swift-evolution at swift.org> wrote:
>
> Well, you’re not allowed to compare optionals any more. You can try
> binding the value to an Int, so that it’s not an optional anymore:
>
> if let number = number {
> let result = number > 0 ? 1 : 2
> }
>
> Either way, you’ll have to decide what you think should happen when number
> is nil.
>
> Saagar Jha
>
> On May 8, 2017, at 00:36, Suresh Kansujiya via swift-evolution <
> swift-evolution at swift.org> wrote:
>
> Hey,
>
> i am using ternary operator with optional variable. like below ex.
>
>
>> *var number:Int?**let result = number > 0 ? 1 : 2  *
>
> *here i am getting this waring : comparison operators with optionals were
> removed from the Swift Standard Library. Consider refactoring the code to
> use the non-optional operators*
> Note : i must need to use ternary operator for checking.
>
> Regards
> Suresh Kansujiya
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