// File: tdtest8.cpp
//
// This file checks that version 8 of 
// the TwoDimArray class works.
//
#include <iostream>
#include "twodim8.H"
using namespace std ;

int main() {

  unsigned int N = 7  ; 
  TwoDimArray<int> A(N,N) ;

  // Initialize A with mod 7 times table
  for (unsigned int i = 0 ; i < N ; i++) {
     for (unsigned int j = 0 ; j < N ; j++) {
         A.at(i,j) = (i*j) % N ;
     }
  }


  cout << "\n\nMod " << N << " Multiplication Table:\n\n" ;
  A.Print() ;


  N = 9  ; 
  TwoDimArray<int> B(N,N) ;

  // Initialize B with mod 9 times table
  for (unsigned int i = 0 ; i < N ; i++) {
     for (unsigned int j = 0 ; j < N ; j++) {
         B[i][j] = (i*j) % N ;
     }
  }


  cout << "\n\nMod " << N << " Multiplication Table:\n\n" ;
  B.Print() ;


  cout << "\n\nCheck that assignment works!\n" ;
  cout << "Mod 7 Multiplication Table:\n\n" ;
  B = A ;
  A[0][0] = 13 ;
  B.Print() ;


  cout << "\n\nCheck that self assignment doesn't foul things up!\n" ;
  cout << "Mod 7 Multiplication Table:\n\n" ;
  B = B ;
  B.Print() ;

  cout << "\n\nInvoke copy constructor.\n" ;
  cout << "Mod 7 Multiplication Table:\n\n" ;
  TwoDimArray<int> C(A) ;
  A[0][0] = 19 ;
  C.Print() ;

}