mcs/tests/gtest-211.cs

   1 class MyTest {
   2         static void f (bool a, bool b)
   3         {
   4                 if (a != b)
   5                         throw new System.Exception ("Something wrong: " + a + " vs. " + b);
   6         }
   7         public static void Main()
   8         {
   9                 int? w = null;
  10                 int? x = null;
  11                 int? y = 0;
  12                 int? z = 1;
  13
  14                 f (false, x == 0);
  15                 f (true,  x != 0);
  16                 f (false, x == y);
  17                 f (true,  x != y);
  18                 f (true,  x == w);
  19                 f (false, x != w);
  20                 f (true,  x == null);
  21                 f (false, x != null);
  22
  23                 f (true,  0 == y);
  24                 f (false, 0 != y);
  25                 f (false, z == y);
  26                 f (true,  z != y);
  27                 f (false, null == y);
  28                 f (true,  null != y);
  29         }
  30 }