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Text File  |  1990-09-18  |  230b  |  16 lines
  1.  
  2.     class It {
  3.     public:
  4.         It( List &l)    { current = l;}
  5.         Truth isend()    { return current.isempty(); }
  6.         T get()
  7.         { 
  8.             T r = current.get();
  9.             current = current.tail();
  10.             return r;
  11.         }
  12.     private:
  13.         List current;
  14.     };
  15.  
  16.