#include "intmatrix.h"
#include <cassert>
#include <iostream>
#include <iomanip>

intmatrix::intmatrix(int rs, int cs)
{ rows = rs;
  cols = cs;
  data = new int [rs*cs]; }

intmatrix::~intmatrix()
{ delete [] data;
  data = NULL; }

int intmatrix::position(int r, int c)
{ assert(r >= 0);
  assert(r < rows);
  assert(c >= 0);
  assert(c < cols);
  return r * cols + c; }

void intmatrix::fill(int val)
{ for (int r = 0; r < rows; r += 1)
    for (int c = 0; c < cols; c += 1)
      data[position(r, c)] = val; }

void intmatrix::set(int r, int c, int val)
{ data[position(r, c)] = val; }

int intmatrix::get(int r, int c)
{ return data[position(r, c)]; }

int intmatrix::get_rows()
{ return rows; }

int intmatrix::get_columns()
{ return cols; }

void intmatrix::print()
{ for (int r = 0; r < rows; r += 1)
  { for (int c = 0; c < cols; c += 1)
      cout << setw(4) << get(r, c);
    cout << "\n"; } }