mcs/errors/cs0023-18.cs

   1 // CS0023: The `-' operator cannot be applied to operand of type `ulong'
   2 // Line: 8
   3
   4 class X
   5 {
   6         public static void Main ()
   7         {
   8                 object o = -(9223372036854775808);
   9         }
  10 }