errors/cs0173-4.cs

   1 // CS0173: Type of conditional expression cannot be determined because there is no implicit conversion between `null' and `null'
   2 // Line: 8
   3
   4 class X
   5 {
   6         static void Main (string[] args)
   7         {
   8                 bool b = args.Length > 0 ? null : null;
   9         }
  10 }