Re: [boost] [iterator] link errors for zip_iterator in MSVC 8

From: Kevin Sopp (baraclese_at_[hidden])
Date: 2006-01-09 04:32:12

You could change zip_iterator.hpp:319 to

      //bool tuple_equal(tuples::null_type, tuples::null_type)
      //{ return true; }

      template<typename Tuple1, typename Tuple2>
        bool tuple_equal(
            Tuple1 const& t1,
            Tuple2 const& t2
        )
      {
          return t1==t2;
      }

This assumes that the comparison operator for tuples works on your compiler 
as described by the comment in zip_iterator.hpp. This is what I did.
Otherwise you could change it to (untested):

      template<typename Tuple1, typename Tuple2>
        bool tuple_equal(
            Tuple1 const& t1,
            Tuple2 const& t2
        )
      {
          return t1.get_head() == t2.get_head() &&
          tuple_equal(t1.get_tail(), t2.get_tail());
      }

     template<>
     bool tuple_equal<tuples::null_type, tuples::null_type>(
                              const tuples::null_type&, const 
tuples::null_type&)
     { return true; }

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