C#_interop_Nim

*** C# ***

    public struct NimT
    {
      public int intVal1;
      public int intVal2;
    }

    [Dllimport(...)]
    populateArraySruct(int length, NimT** ArrayStructs)


    public static unsafe List<NimT> PopulateLstPackNim(int ArrL)
    {
        NimT* PackUArrOut = null;
        List<NimT> RtPackLst = new List<NimT>(ArrL);
        GetPacksPtrNimMe2(ArrL, &PackUArrOut);
        NimT* CurrentPack = PackUArrOut;
        for (int i = 0; i < ArrL; i++, CurrentPack++)
        {
            RtPackLst.Add(new NimT() {intVal1 = CurrentPack->intVal1, intVal2 = CurrentPack->intVal2 });
        }
        return RtPackLst;
    }


**NIM**


type
  ExportNimTARRAY = seq[ExportNimT]
  ExportNimT = object
    intVal1: int32
    intVal2: int32

proc GetPacksPtrNimMe2(parSze: int, PackArrINOUT: var ExportNimTARRAY) {.exportc,dynlib.} =
  PackArrINOUT.newSeq(parSze)
  var
    tmp1: int32
    tmp2: int32
  for i, curDataPack in PackArrINOUT.mpairs:
    tmp1 = 10 * int32 i
    tmp2 = int32 i
    curDataPack = ExportNimT (intVal1:tmp1, intVal2: tmp2)