#include <iostream>
using namespace std;
 
template<typename T> class Matrix
  {
   public:
   Matrix(T *m,unsigned Y,unsigned X)
     {
      for(unsigned y=0;y<Y;++y,cout<<endl) for(unsigned x=0;x<X;++x) cout<<' '<<*(m++);
      cout<<endl;
     }
   template<unsigned Y,unsigned X> 
   Matrix(T (&m)[Y][X])
     {
      for(unsigned y=0;y<Y;++y,cout<<endl) for(unsigned x=0;x<X;++x) cout<<' '<<m[y][x];
      cout<<endl;
     }
  };
 
int main()
  { 
   double u[3][3]={{1,2,3},{4,5,6},{7,8,9}};
   Matrix<double> m((double*)u,sizeof(u)/sizeof(*u),sizeof(*u)/sizeof(**u));
   Matrix<double> M(u);
   return 0;
  }

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