Fan.Sys.Range.each C# (CSharp) Method

        public void each(Func f)
        {
            long start = m_start;
              long end = m_end;
              if (start < end)
              {
            if (m_exclusive) --end;
            for (long i=start; i<=end; ++i) f.call(i);
              }
              else
              {
            if (m_exclusive) ++end;
            for (long i=start; i>=end; --i) f.call(i);
              }
        }