Many thanks. It works in Swift 4 Xcode 9 beta2. On Jun 30, 2017, at 11:20 AM, Daniel Dunbar <daniel_dun...@apple.com> wrote:
This is due to SE-0110: https://github.com/apple/swift-evolution/blob/master/proposals/0110-distingish-single-tuple-arg.md but see the additional commentary: https://lists.swift.org/pipermail/swift-evolution-announce/2017-June/000386.html For now you can rewrite it as: ``` let filenamelength = bytes .enumerated() .map { let (index, element) = $0 return Int(Double(element) * pow(256,Double(index))) } .reduce(0, +) ``` - Daniel On Jun 29, 2017, at 8:08 PM, CK TUNG via swift-users <swift-users@swift.org> wrote: I have the following code snippet that compile OK in swift 3 bytes = Array(UnsafeBufferPointer(....)) let filenamelength = bytes[(i+28)..<(i+28+2)] .enumerated() .map { (index, element) in return Int(Double(element) * pow(256,Double(index))) } .reduce(0, +) I have the following code snippet that compile OK in swift 3 In Swift 4 (Xcode beta1) it compiled with error something like "... too complex" Now in Swift 4 Xocde beta2 the error is tuple parameter element does not support destructing what has been changed in swift 4 ? Please help how to solve it ? Thanks _______________________________________________ swift-users mailing list swift-users@swift.org https://lists.swift.org/mailman/listinfo/swift-users
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