#include <iostream>
#include <cstdlib>
#include "matrix.h"

using namespace std;

matrix::matrix(int r, int c){
	myMatrix = new (int *)[r];
	for(int i = 0; i < r; i++)
		myMatrix[i] = new int[c];
	numRows = r;
	numCols = c;
}

matrix::matrix(const matrix & rhs){
        numRows = rhs.numRows;
        numCols = rhs.numCols;
	myMatrix = new (int *)[numRows];
        for(int i = 0; i < numRows; i++){
                myMatrix[i] = new int[numCols];
		for(int j = 0; j < numCols; j++)
			myMatrix[i][j] = rhs.myMatrix[i][j];
	}
}

matrix::~matrix(){
	for(int i = 0; i < numRows; i++)
                delete [] myMatrix[i];

	delete [] myMatrix;
}

void matrix::operator =(const matrix & rhs){
	if (myMatrix != rhs.myMatrix){
		this -> ~matrix();
		numRows = rhs.numRows;
        	numCols = rhs.numCols;
        	myMatrix = new (int *)[numRows];
        	for(int i = 0; i < numRows; i++){
                	myMatrix[i] = new int[numCols];
                	for(int j = 0; j < numCols; j++)
                        	myMatrix[i][j] = rhs.myMatrix[i][j];
		}
	}
}

int * matrix::operator [](int i){
	assert((i < numRows) && (i >= 0));
	return myMatrix[i];
}