Определяет мономорфный набор данных n+m dimentional *. Образцы в этом наборе данных представляют собой сетку элементов в DataSet1 и DataSet2. Полные образцы |DataSet1 | |DataSet2 |.

namespace boost {
  namespace unit_test {
    namespace data {
      namespace monomorphic {
        template<typename DataSet1, typename DataSet2> class grid;
        template<typename DataSet1, typename DataSet2> 
          struct is_dataset<grid< DataSet1, DataSet2 >>;
        // <purpose>Grid operation. </purpose>
        template<typename DataSet1, typename DataSet2> 
          boost::lazy_enable_if_c< is_dataset< DataSet1 >::value &&is_dataset< DataSet2 >::value, result_of::grid< mpl::identity< DataSet1 >, mpl::identity< DataSet2 > >>::type 
          operator*(DataSet1 && ds1, DataSet2 && ds2);
        template<typename DataSet1, typename DataSet2> 
          boost::lazy_enable_if_c< is_dataset< DataSet1 >::value &&!is_dataset< DataSet2 >::value, result_of::grid< mpl::identity< DataSet1 >, data::result_of::make< DataSet2 > >>::type 
          operator*(DataSet1 && ds1, DataSet2 && ds2);
        template<typename DataSet1, typename DataSet2> 
          boost::lazy_enable_if_c<!is_dataset< DataSet1 >::value &&is_dataset< DataSet2 >::value, result_of::grid< data::result_of::make< DataSet1 >, mpl::identity< DataSet2 > >>::type 
          operator*(DataSet1 && ds1, DataSet2 && ds2);
        namespace result_of {
          template<typename DS1Gen, typename DS2Gen> struct grid;
        }
      }
    }
  }
}