Sure. I'm not sure we have a good idea for how to catch the bug—what if you
really meant to pass the array as an NSArray?—but it's worth recording
somewhere. Thanks, Rick.
Jordan
> On Nov 14, 2017, at 18:00, Rick Mann <rm...@latencyzero.com> wrote:
>
> I tried to find an alternative init() to use, but couldn't (despite dozens of
> releases, Xcode's code completion still fails much of the time). Thanks for
> pointing me to the right one!
>
> Should I file a bug?
>
>> On Nov 14, 2017, at 17:47 , Jordan Rose <jordan_r...@apple.com> wrote:
>>
>> Heh, it would be nice to catch this. You're collecting a bunch of arguments
>> in an Array, and then passing that array straight on as a single argument
>> itself, which means it gets passed as either an NSArray or a pointer (not
>> sure which). Use 'init(format:arguments:)' instead.
>>
>> Jordan
>>
>>
>>> On Nov 14, 2017, at 17:19, Rick Mann via swift-users
>>> <swift-users@swift.org> wrote:
>>>
>>> I've had a long-working `debugLog()` method that looks like this:
>>>
>>> ```
>>> func
>>> debugLog<T>(_ inMsg: T, file inFile : String = #file, line inLine : Int =
>>> #line)
>>> {
>>> let file = (inFile as NSString).lastPathComponent
>>> let s = "\(file):\(inLine) \(inMsg)"
>>> print(s)
>>> }
>>> ```
>>>
>>> I wanted to add a version that works like `String(format:)`:
>>>
>>> ```
>>> func
>>> debugLog(format inFormat: String, file inFile : String = #file, line inLine
>>> : Int = #line, _ inArgs: CVarArg...)
>>> {
>>> let s = String(format: inFormat, inArgs)
>>> debugLog(s, file: inFile, line: inLine)
>>> }
>>>
>>> ```
>>>
>>> While this compiles and executes, all of the values are zero for this
>>> example:
>>>
>>> ```
>>> let xc = CGFloat(1.0)
>>> let yc = CGFloat(0.0)
>>> let len = CGFloat(282.1364917907643)
>>>
>>> debugLog(format: "Pixel %f, %f length too far %f", xc, yc, len)
>>> ```
>>>
>>> Output:
>>>
>>> ```
>>> FisheyeImageRenderer.swift:108 Pixel 0.000000, 0.000000 length too far
>>> 0.000000
>>> ```
>>>
>>> Something is being misinterpreted in the passing of `inArgs: CVarArg...`
>>>
>>> TIA,
>>>
>>> --
>>> Rick Mann
>>> rm...@latencyzero.com
>>>
>>>
>>>
>>> _______________________________________________
>>> swift-users mailing list
>>> swift-users@swift.org
>>> https://lists.swift.org/mailman/listinfo/swift-users
>>
>
>
> --
> Rick Mann
> rm...@latencyzero.com
>
>
_______________________________________________
swift-users mailing list
swift-users@swift.org
https://lists.swift.org/mailman/listinfo/swift-users
