// Pages 208-209, matrix multiplication (1D representation); implement >>
// output the result into a FILE, not on screen; also, see my directory file

#include <iostream.h>
#include <stdio.h>
#include <fstream.h>
#include <assert.h>
#include "matrix.h"

void main(void)
{
   try
   {
    Matrix<int> X(3,3), Y(3,3),W(3,3);
//    X(1,1) = 3; X(1,2) = 2; X(1,3) = 1; X(2,1) = -1; X(2,2) = 2; X(2,3) = 3;
//    X(3,1) = 3; X(3,2) = 1; X(3,3) = 4;
//    Y(1,1) = 1; Y(1,2) = 3; Y(1,3) = 4; Y(2,1) =  2; Y(2,2) = 4; Y(2,3) = 1;
//    Y(3,1) =-1; Y(3,2) = 2; Y(3,3) = 3;
cin >> X >> Y;
    W = X * Y;
    cout << "X * Y is" << endl;
    cout << W << endl;    // output on screen and also in a file named hw4.out
   }                      // see definition for operator* in matrix.h
   catch (...)
   {
      cerr << "An exception has occurred" << endl;
   }

   getchar();
}