Fan.Sys.List.eachRange C# (CSharp) Method

        public void eachRange(Range r, Func f)
        {
            int s = r.start(m_size);
              int e = r.end(m_size);
              int n = e - s + 1;
              if (n < 0) throw IndexErr.make(r).val;

              if (f.arity() == 1)
              {
            for (int i=s; i<=e; ++i)
              f.call(m_values[i]);
              }
              else
              {
            for (int i=s; i<=e; ++i)
              f.call(m_values[i], i);
              }
        }