mono/tests/checked.cs

   1 using System;\r
   2 \r
   3 namespace test {\r
   4         public class tester {\r
   5                 public tester() {}\r
   6 \r
   7                 public static int Main () {\r
   8                         float a  = 1e20f;\r
   9                         int i = 0;\r
  10                         uint ui = 0;\r
  11 \r
  12                         bool exception = false;\r
  13 \r
  14                         try {\r
  15                                 int b = (int) a;\r
  16                                 checked {\r
  17                                         i = (int)a;\r
  18                                 }\r
  19                         }\r
  20                         catch (OverflowException) {\r
  21                                 exception = true;\r
  22                         }\r
  23                         catch (Exception) {\r
  24                         }                       \r
  25 \r
  26 \r
  27                         if (!exception)\r
  28                                 return -1;\r
  29 \r
  30                         exception = false;\r
  31 \r
  32                         a  = 1e5f;\r
  33                         \r
  34                         try {\r
  35                                 int b = (int) a;\r
  36                                 checked {\r
  37                                         i = (int)a;\r
  38                                 }\r
  39                         } catch (Exception) {\r
  40                                 return -2;\r
  41                         }\r
  42 \r
  43 \r
  44                         if (i != 100000)\r
  45                                 return -3;\r
  46                 \r
  47                         exception = false;\r
  48 \r
  49                         a  = -1e30f;\r
  50                         try {\r
  51                                 int b = (int) a;\r
  52                                 checked {\r
  53                                         i = (int)a;\r
  54                                 }\r
  55                         } \r
  56                         catch (OverflowException) {\r
  57                                 exception = true;\r
  58                         }\r
  59                         catch (Exception) {\r
  60                         }                       \r
  61                         exception = false;\r
  62 \r
  63 \r
  64                         a  = -1e30f;\r
  65                         try {\r
  66                                 uint b = (uint) a;\r
  67                                 checked {\r
  68                                         ui = (uint)a;\r
  69                                 }\r
  70 \r
  71                                 Console.WriteLine("No Exception");\r
  72                         } \r
  73                         catch (OverflowException) {\r
  74                                 exception = true;\r
  75                         }\r
  76                         catch (Exception) {\r
  77                         }\r
  78 \r
  79 \r
  80                         if (!exception)\r
  81                                 return -4;\r
  82 \r
  83                         a  = 1e5f;\r
  84                         try {\r
  85                                 uint b = (uint) a;\r
  86                                 checked {\r
  87                                         ui = (uint)a;\r
  88                                 }\r
  89                         } \r
  90                         catch (Exception) {\r
  91                                 return -5;\r
  92                         }\r
  93 \r
  94                         if (ui != 100000)\r
  95                                 return -6;\r
  96                         \r
  97                         \r
  98                         Console.WriteLine("test-ok");\r
  99 \r
 100                         return 0;\r
 101                 }\r
 102         }\r
 103 }\r