cpp oop example in gnu gcc

2d.h

namespace bor

{

const int LENGTH = 10;

const int TOP = 1;

const int RIGHT = 2;

const int BOTTOM = 3;

const int LEFT = 4;

class cube

{

private:

int arr[LENGTH][LENGTH];

protected:

int sector;

public:

void fill();

void change();

void print();

};

}

2d.cpp

#include <iostream>

#include <cstdlib>

#include "2d.h"

using namespace std;

namespace bor

{

void cube::fill(){

sector = TOP;

for(int i = 0; i < LENGTH; i++) {

for(int j = 0; j < LENGTH; j++) {

arr[i][j] = 1;

}

}

change();

}

void cube::change(){

int i = 0, j = 0;

do {

if(sector == TOP) {

if(j < LENGTH && arr[i][j] != 2)

{ arr[i][j] = 2; j++; }

else

{ j--; i++; sector = RIGHT; }

print();

}

if(sector == RIGHT) {

if(i < LENGTH && arr[i][j] != 2)

{ arr[i][j] = 2; i++; }

else

{ i--; j--; sector = BOTTOM; }

print();

}

if(sector == BOTTOM) {

if(j > -1 && arr[i][j] != 2)

{ arr[i][j] = 2; j--;

if(j < 0) { j++; i--; sector = LEFT; }

}

else

{ j++; i--; sector = LEFT; }

print();

}

if(sector == LEFT) {

if(i > -1 && arr[i][j] != 2)

{ arr[i][j] = 2; i--;

if(i < 0) { i++; j++; sector = TOP; }

}

else

{ i++; j++; sector = TOP; }

print();

}

if(i == 5 && j == 5) break;

} while (i == -1 || j == -1 || (i > -1 || j > -1 && arr[i][j] != 2) );

print();

}

void cube::print(){

cout<<endl<<endl;

for(int i = 0; i < LENGTH; i++) {

for(int j = 0; j < LENGTH; j++) {

cout<<arr[i][j]<<" ";

}

cout<<endl;

}

system("pause");

}

}

main.cpp

#include <cstdlib>

#include <iostream>

#include "2d.h"

using namespace std;

using namespace bor;

int main(int argc, char* argv[])

{

cube *c = new cube();

c->fill();

return 0;

}