mcs/tests/test-298.cs

   1 using System;
   2
   3 class A
   4 {
   5         public static int operator + (short x, A b)
   6         {
   7                 return -1;
   8         }
   9
  10         public static int operator - (A a)
  11         {
  12                 return -1;
  13         }
  14 }
  15
  16 class B : A
  17 {
  18         public static int operator + (int x, B d)
  19         {
  20                 return 1;
  21         }
  22
  23         public static int operator - (B b)
  24         {
  25                 return 1;
  26         }
  27 }
  28
  29 class C : B
  30 {
  31 }
  32
  33 public class Test
  34 {
  35         public static int Main ()
  36         {
  37                 var b = new B ();
  38                 short s = 3;
  39                 var res = s + b;
  40
  41                 if (res != 1)
  42                         return 1;
  43
  44                 var c = new C ();
  45                 if (-c != 1)
  46                         return 2;
  47
  48                 return 0;
  49         }
  50 }