mcs/tests/gtest-621.cs

   1 using System;
   2
   3 class X
   4 {
   5         static int Main ()
   6         {
   7                 int? intArg = 1;
   8                 long? longArg = 2;
   9
  10                 var g = intArg ?? longArg;
  11                 Console.WriteLine (g);
  12                 if (g != 1)
  13                         return 1;
  14
  15                 intArg = null;
  16                 g = intArg ?? longArg;
  17                 Console.WriteLine (g);
  18                 if (g != 2)
  19                         return 2;
  20
  21                 longArg = null;
  22                 g = intArg ?? longArg;
  23                 Console.WriteLine (g);
  24                 if (g != null)
  25                         return 3;
  26
  27                 return 0;
  28         }
  29
  30         const Action cf = null;
  31         void Foo (Action f)
  32         {
  33                 var x = f ?? cf;
  34         }
  35 }