#include <iostream.h>


// --------------------------------------------- MatrixNxN: Dynamic size matrix
class MatrixNxN
{
public:
   double *A;
   int    N;


   /* ------------------------------------------
      Constructor 1
      ------------------------------------------ */
   MatrixNxN()
   {
      cout << "Invoking Constructor 1" << endl;
   }

   /* ------------------------------------------
      Constructor 2
      ------------------------------------------ */
   MatrixNxN(int n)
   {
      cout << "Invoking Constructor 2: making a " 
	   << n << "x" << n << " matrix" << endl;

      A = new double[n*n];
      N = n;
   }
};

int main(int argc, char *argv[])
{
   cout << "Processing:  MatrixNxN m1" << endl;
   MatrixNxN m1;

   cout << "Processing:  MatrixNxN m2(4)" << endl;
   MatrixNxN m2(4);

   cout << "Processing:  MatrixNxN m3[4]" << endl;
   MatrixNxN m3[4];

   MatrixNxN m4[4] = {MatrixNxN(2), MatrixNxN(3), MatrixNxN(4), MatrixNxN(5)};
}