TicTacToe in C++ won't work? Help please - c++

Question

So I'm trying to get this simple Multiplayer TicTacToe game to work in eclipse (C++ version), but it seems that whenever I run my program, only for the top row of a TicTacToe can people win.
Here's my code:
#include <iostream>
using namespace std;
string board[3][3]; // creates the game board
void draw(int player, int num)
{
num--;
int row = num/3;
int col = num%3;
if ( player == 1 ) board[row][col] = "X";
else board[row][col] = "O";
}// end draw method
bool checkWin(int num)
{
bool win = false;
if (num == 1 || num == 2 || num == 3)
{
if ( board[0][0] == board[0][1] && board[0][0] == board[0][2])
return true;
}
if (num == 4 || num == 5 || num == 6)
{
if ( board[1][0] == board[1][1] && board[1][0] == board[1][2])
return true;
}
if (num == 7 || num == 8 || num == 9)
{
if ( board[2][0] == board[2][1] && board[2][0] == board[2][2])
return true;
}
if (num == 1 || num == 4 || num == 7)
{
if ( board[0][0] == board[1][0] && board[0][0] == board[2][0])
return true;
}
if (num == 2 || num == 5 || num == 8)
{
if ( board[0][1] == board[1][1] && board[0][1] == board[2][1])
return true;
}
if (num == 3 || num == 6 || num == 9)
{
if ( board[0][2] == board[1][2] && board[0][2] == board[2][2])
return true;
}
if (num == 1 || num == 5 || num == 9)
{
if ( board[0][0] == board[1][1] && board[0][0] == board[2][2])
return true;
}
if (num == 3 || num == 5 || num == 7)
{
if ( board[0][2] == board[1][1] && board[0][2] == board[2][0])
return true;
}
return win;
} // end checkWin method
int main()
{
cout << "C++ TIC TAC TOE GAME" << endl;
cout << "The board is labeled from 1-9 in row-major order." << endl;
bool winner = false;
int turns = 0;
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
board[i][j] = "-";
cout << board[i][j] << " ";
}
cout << endl; // "enters" to next line
} // prints the game board 2d array
while (winner == false && turns < 9)
{
int player = 0;
int placedAt = 0;
if ( turns % 2 == 0 )
{
int num1;
cout << "Player 1 enter what space to place X: ";
cin >> num1;
player = 1;
draw(player,num1);
placedAt = num1;
}
else
{
int num2;
cout << "Player 2 enter what space to place O: ";
cin >> num2;
player = 2;
draw(player,num2);
placedAt = num2;
}
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
cout << board[i][j] << " ";
}
cout << endl; // "enters" to next line
} // prints the game board 2d array
winner = checkWin(placedAt);
if (winner == true)
{
cout << endl << "Player " << player << " WINS!";
}
turns++;
cout << endl;
} // end while loop
if (winner == false) cout << endl << "NO ONE WON!";
return 0;
} // end main method

Answer 1

Change string board[3][3]; to char board[3][3]; , and "X" to 'X'.
The corrected code below should compile just fine.
#include <iostream>
using namespace std;
char board[3][3]; // creates the game board
void draw(int player, int num)
{
num--;
int row = num/3;
int col = num%3;
if ( player == 1 ) board[row][col] = 'X';
else board[row][col] = 'O';
}// end draw method
bool checkWin(int num)
{
bool win = false;
if (num == 1 || num == 2 || num == 3)
{
if ( board[0][0] == board[0][1] && board[0][0] == board[0][2])
return true;
}
if (num == 4 || num == 5 || num == 6)
{
if ( board[1][0] == board[1][1] && board[1][0] == board[1][2])
return true;
}
if (num == 7 || num == 8 || num == 9)
{
if ( board[2][0] == board[2][1] && board[2][0] == board[2][2])
return true;
}
if (num == 1 || num == 4 || num == 7)
{
if ( board[0][0] == board[1][0] && board[0][0] == board[2][0])
return true;
}
if (num == 2 || num == 5 || num == 8)
{
if ( board[0][1] == board[1][1] && board[0][1] == board[2][1])
return true;
}
if (num == 3 || num == 6 || num == 9)
{
if ( board[0][2] == board[1][2] && board[0][2] == board[2][2])
return true;
}
if (num == 1 || num == 5 || num == 9)
{
if ( board[0][0] == board[1][1] && board[0][0] == board[2][2])
return true;
}
if (num == 3 || num == 5 || num == 7)
{
if ( board[0][2] == board[1][1] && board[0][2] == board[2][0])
return true;
}
return win;
} // end checkWin method
int main()
{
cout << "C++ TIC TAC TOE GAME" << endl;
cout << "The board is labeled from 1-9 in row-major order." << endl;
bool winner = false;
int turns = 0;
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
board[i][j] = '-';
cout << board[i][j] << ' ';
}
cout << endl; // "enters" to next line
} // prints the game board 2d array
while (winner == false && turns < 9)
{
int player = 0;
int placedAt = 0;
if ( turns % 2 == 0 )
{
int num1;
cout << "Player 1 enter what space to place X: ";
cin >> num1;
player = 1;
draw(player,num1);
placedAt = num1;
}
else
{
int num2;
cout << "Player 2 enter what space to place O: ";
cin >> num2;
player = 2;
draw(player,num2);
placedAt = num2;
}
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
cout << board[i][j] << " ";
}
cout << endl; // "enters" to next line
} // prints the game board 2d array
winner = checkWin(placedAt);
if (winner == true)
{
cout << endl << "Player " << player << " WINS!";
}
turns++;
cout << endl;
} // end while loop
if (winner == false) cout << endl << "NO ONE WON!";
return 0;
} // end main method