tests/test-540.cs

   1 class A
   2 {
   3         public static implicit operator byte (A mask)
   4         {
   5                 return 22;
   6         }
   7 }
   8
   9 public class Constraint
  10 {
  11         const A lm = null;
  12
  13         enum E1 : int { A }
  14         enum E2 : byte { A }
  15
  16         public static Constraint operator !(Constraint m)
  17         {
  18                 return null;
  19         }
  20
  21         public static Constraint operator +(Constraint m)
  22         {
  23                 return null;
  24         }
  25
  26         public static Constraint operator ~(Constraint m)
  27         {
  28                 return null;
  29         }
  30
  31         public static Constraint operator -(Constraint m)
  32         {
  33                 return null;
  34         }
  35
  36         static void Foo (object o)
  37         {
  38         }
  39
  40         public static int Main ()
  41         {
  42
  43                 Foo (!(Constraint)null);
  44                 Foo (~(Constraint)null);
  45                 Foo (+(Constraint)null);
  46                 Foo (-(Constraint)null);
  47
  48                 const byte b1 = +0;
  49                 const byte b2 = +b1;
  50                 const byte b3 = (byte)0;
  51                 const int a = -2147483648;
  52                 const long l = -9223372036854775808;
  53                 const long l2 = -uint.MaxValue;
  54                 const E1 e = (E1)~E2.A;
  55
  56                 unchecked {
  57                         if (-int.MinValue != int.MinValue)
  58                                 return 1;
  59                 }
  60
  61                 int b = -lm;
  62                 if (b != -22)
  63                         return 2;
  64
  65                 uint ua = 2;
  66                 if (-ua != -2)
  67                         return 3;
  68
  69                 System.Console.WriteLine ("OK");
  70                 return 0;
  71         }
  72
  73 }