Guid Combine

gistfile1.cs

    public static Guid Combine(params Guid[] guids) {
      const int BYTECOUNT = 16;
      byte[] destByte = new byte[BYTECOUNT];
      var listOfByteArrays = guids.Select(guid => guid.ToByteArray()).ToArray();

      for (int i = 0; i < BYTECOUNT; i++) {
        destByte[i] = listOfByteArrays.Aggregate<byte[], byte>(0, (current, array) => (byte) (current ^ array[i]));
      }
      return new Guid(destByte);
    }