Experiments/Attic/Rook/Castle.Rook.Compiler/Parser/SupportClass.cs

   1 using System;
   2 internal class SupportClass
   3 {
   4         public static int URShift(int number, int bits)
   5         {
   6                 if ( number >= 0)
   7                         return number >> bits;
   8                 else
   9                         return (number >> bits) + (2 << ~bits);
  10         }
  11
  12         public static int URShift(int number, long bits)
  13         {
  14                 return URShift(number, (int)bits);
  15         }
  16
  17         public static long URShift(long number, int bits)
  18         {
  19                 if ( number >= 0)
  20                         return number >> bits;
  21                 else
  22                         return (number >> bits) + (2L << ~bits);
  23         }
  24
  25         public static long URShift(long number, long bits)
  26         {
  27                 return URShift(number, (int)bits);
  28         }
  29 }