[swift-users] DateFormatter crash on second usage (new instance) on Linux (swift 3.0.1)

[Dennis Schafroth]

Hi

Trying to do some simple date parsing from syslog format (“Jan 25 20:21:22”) into Date. Seem to work once but crashes on second call


func dateConv(_ dateString: String) -> Date? {
  let dateFormatter = DateFormatter()
  dateFormatter.dateFormat = "MMM dd HH:mm"
  dateFormatter.locale = Locale(identifier: "da_DK_POSIX")
  if let date = dateFormatter.date(from: dateString) {
    print("Real date: \(date)" )
    return date
  }
  return nil
}

var date  = dateConv("Jan 25 20:10")
var date2 = dateConv("Jan 25 20:11”)

# swift main.swift
Real date: 2000-01-25 19:10:00 +0000
0  swift            0x000000000334ab78 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1  swift            0x0000000003349346 llvm::sys::RunSignalHandlers() + 54
2  swift            0x000000000334b6aa
3  libpthread.so.0  0x00007fec92166890
4  libswiftCore.so  0x00007fec8e8f0735
5  libFoundation.so 0x00007fec8c0ab6ee
6  libFoundation.so 0x00007fec8bd7a222
7  libFoundation.so 0x00007fec8bd7c623
8  libFoundation.so 0x00007fec8bf0e873 _TFC10Foundation6NSDateg11descriptionSS + 99
9  libFoundation.so 0x00007fec8c182829 _TTWV10Foundation4Dates23CustomStringConvertibleS_FS1_g11descriptionSS + 57
10 libswiftCore.so  0x00007fec8e78c745 _TFs15_print_unlockedu0_R_s16TextOutputStreamrFTxRq__T_ + 997

using swift 3.0.1. Am I doing something wrong? I seems to work on macOS.

cheers,
:-Dennis

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