mcs/tests/test-141.cs

   1 using System;
   2
   3 class X {
   4         public static int Main()
   5         {
   6                 if (! Test1 ()) return 1;
   7                 if (! Test2 ()) return 2;
   8                 if (! Test3 ()) return 3;
   9
  10                 return 0;
  11         }
  12
  13         static bool Test1 ()
  14         {
  15                 byte num1 = 105;
  16                 byte num2 = 150;
  17
  18                 // should generate OverflowException
  19                 try {
  20                         checked {
  21                                 byte sum = (byte) (num1 - num2);
  22                         }
  23
  24                         return false;
  25                 } catch (OverflowException) {
  26                         return true;
  27                 }
  28         }
  29
  30         static bool Test2 ()
  31         {
  32                 long l = long.MinValue;
  33
  34                 // should generate OverflowException
  35                 try {
  36                         checked {
  37                                 l = - l;
  38                         }
  39
  40                         return false;
  41                 } catch (OverflowException) {
  42                         return true;
  43                 }
  44         }
  45
  46         static bool Test3 ()
  47         {
  48                 int i = int.MinValue;
  49
  50                 // should generate OverflowException
  51                 try {
  52                         checked {
  53                                 i = - i;
  54                         }
  55
  56                         return false;
  57                 } catch (OverflowException) {
  58                         return true;
  59                 }
  60         }
  61 }