> On Sep 20, 2016, at 1:45 PM, Kevin Choi via swift-dev <swift-dev@swift.org>
> wrote:
>
> b.sw:
> func findIndex<T: Equatable>(array: [T], _ valueToFind: T) -> Int? {
> for (index, value) in array.enumerated() {
> if value == valueToFind {
> return index
> }
> }
> return nil
> }
>
> let foundAtIndex = findIndex([1, 2, 3, 4], 3)
> print(foundAtIndex == 2) // true
>
> ===================
> ~/git/swift-source$
> build/Ninja-RelWithDebInfoAssert/swift-linux-x86_64/bin/swift b.sw
> b.sw:10:44: error: unnamed argument #2 must precede unnamed argument #1
> let foundAtIndex = findIndex([1, 2, 3, 4], 3)
> ~~~~~~~~~~~~ ^
> 3 [1, 2, 3, 4]
>
> The error seems to arise from the requirement:
> > If a parameter has an argument label, the argument must be labeled when you
> > call the function.
>
> Instead the shown error assumes the order is swapped because first argument
> was unnamed. Should the former (from requirement) be shown as the error here?
Yeah, that would make much more sense. If you have a moment, would you be able
to report this as a bug on bugs.swift.org?
-Joe
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