Error in my tic-tat-toe code

[jakesweater]

I have 27 errors.
Line 9,10,11,12.13,85,100,30,51,161,162,,159, and 110. I need this code for my end of the semester project, that is due tomorrow.

// Tic-Tac-Toe
// Plays the game of tic-tac-toe against a human opponent
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;
// global constants
const char X = ’X’;
const char O = ’O’;
const char EMPTY = ’ ’;
const char TIE = ’T’;
const char NO_ONE = ’N’;
// function prototypes
void instructions();
char askYesNo(string question);
void instructions(); 
char askYesNo(string question);

int askNumber(string question, int
high, int low = 0);
char humanPiece();
char opponent(char piece); 
void displayBoard(const
vector<char>& board);
char winner(const vector<char>&
board);
bool isLegal(const vector<char>&
board, int move);
(const vector<char>&
board, char human);
int computerMove(vector<char> board,
char computer);
void announceWinner(char winner,
char computer, char human);
// main function
int main()
{
int move;
const int NUM_SQUARES = 9;
vector<char> board(NUM_SQUARES, EMPTY);
instructions();
char human = humanPiece();
char computer = opponent(human);
char turn = X;
displayBoard(board);
while (winner(board) == NO_ONE)
{
if (turn == human)
{
move = humanMove(board, human);
board[move] = human;
}
else
{
move = computerMove(board, computer);
board[move] = computer;
}
displayBoard(board);
turn = opponent(turn);
}
announceWinner(winner(board), computer, human);
return 0;
}
void instructions()
{
cout << "Welcome to the ultimate man-machine showdown: Tic-Tac-Toe.\n";
cout << "--where human brain is pit against silicon processor\n\n";
cout << "Make your move known by entering a number, 0 - 8. The number\n";
cout << "corresponds to the desired board position, as illustrated:\n\n";
cout << " 0 | 1 | 2\n";
cout << " ——————— \n";
cout << " 3 | 4 | 5\n";
cout << " ——————— \n";
cout << " 6 | 7 | 8\n\n";
cout << "Prepare yourself, human. The battle is about to begin.\n\n";
}
char askYesNo(string question)
{
char response;
do
{
cout << question << " (y/n): ";
cin >> response;
} while (response != ’y’ && response != ’n’);
return response;
}
int askNumber(string question, int high, int low)
{
int number;
do
{
cout << question << " (" << low << " - " << high << "): ";
cin >> number;
} while (number > high || number < low);
return number;
}
char humanPiece()
{char go_first = askYesNo("Do you require the first move?");
if (go_first == ’y’)
{
cout << "\nThen take the first move. You will need it.\n";
return X;
}
else
{
cout << "\nYour bravery will be your undoing. . . I will go first.\n";
return O;
}
}
char opponent(char piece)
{
if (piece == X)
{
return O;
}
else
{
return X;
}
}
void displayBoard(const vector<char>& board)
{
cout << "\n\t" << board[0] << " | " << board[1] << " | " << board[2];
cout << "\n\t" << "———————";
cout << "\n\t" << board[3] << " | " << board[4] << " | " << board[5];
cout << "\n\t" << "———————";
cout << "\n\t" << board[6] << " | " << board[7] << " | " << board[8];
cout << "\n\n";
}
char winner(const vector<char>& board)
{
// all possible winning rows
const int WINNING_ROWS[8][3] = { {0, 1, 2},
{3, 4, 5},
{6, 7, 8},
{0, 3, 6},
{1, 4, 7},
{2, 5, 8},
{0, 4, 8},
{2, 4, 6} };
const int TOTAL_ROWS = 8;
// if any winning row has three values that are the same (and not EMPTY),
// then we have a winner
for(int row = 0; row < TOTAL_ROWS; ++row)
{
if ( (board[WINNING_ROWS[row][0]] != EMPTY) &&
(board[WINNING_ROWS[row][0]] == board[WINNING_ROWS[row][1]]) &&
(board[WINNING_ROWS[row][1]] == board[WINNING_ROWS[row][2]]) )
{
return board[WINNING_ROWS[row][0]];
}
}
// since nobody has won, check for a tie (no empty squares left)
if (count(board.begin(), board.end(), EMPTY) == 0)
return TIE;
// since nobody has won and it isn’t a tie, the game ain’t over
return NO_ONE;
}
// since nobody has won and it isn’t a tie, the game ain’t over
return NO_ONE;
}
int humanMove(const vector<char>& board, char human)
{
int move = askNumber("Where will you move?", (board.size() - 1));
while (!isLegal(move, board))
{
cout << "\nThat square is already occupied, foolish human.\n";
move = askNumber("Where will you move?", (board.size() - 1));
}
cout << "Fine. . .\n";
return move;
}
int computerMove(vector<char> board, char computer)
{
unsigned int move = 0;
bool found = false;
//if computer can win on next move, that’s the move to make
while (!found && move < board.size())
{
if (isLegal(move, board))
{
board[move] = computer;
found = winner(board) == computer;
board[move] = EMPTY;
}
if (!found)
{
++move;
}
}
//otherwise, if human can win on next move, that’s the move to make
if (!found)
{
move = 0;
char human = opponent(computer);
while (!found && move < board.size())
{
if (isLegal(move, board))
{
board[move] = human;
found = winner(board) == human;
board[move] = EMPTY;
}
if (!found)
{
++move;
}
}
}
//otherwise, moving to the best open square is the move to make
if (!found)
{
move = 0;
unsigned int i = 0;
const int BEST_MOVES[] = {4, 0, 2, 6, 8, 1, 3, 5, 7};
//pick best open square
while (!found && i < board.size())
{
move = BEST_MOVES[i];
if (isLegal(move, board))
{
found = true;
}
++i;
}
}
//otherwise, moving to the best open square is the move to make
if (!found)
{
move = 0;
unsigned int i = 0;
const int BEST_MOVES[] = {4, 0, 2, 6, 8, 1, 3, 5, 7};
//pick best open square
while (!found && i < board.size())
{
move = BEST_MOVES[i];
if (isLegal(move, board))
{
found = true;
}
++i;
}
}
void announceWinner(char winner, char computer, char human)
{
if (winner == computer)
{
cout << winner << "’s won!\n";
cout << "As I predicted, human, I am triumphant once more -- proof\n";
cout << "that computers are superior to humans in all regards.\n";
}
else if (winner == human)
{
cout << winner << "’s won!\n";
cout << "No, no! It cannot be! Somehow you tricked me, human.\n";
cout << "But never again! I, the computer, so swear it!\n";
}
else
{
cout << "It’s a tie.\n";
cout << "You were most lucky, human, and somehow managed to tie me.\n";
cout << "Celebrate. . . for this is the best you will ever achieve.\n";
}

[Hippogriff]

const char X = ’X’;
Whatever you are using here they aren't standard single quotes, use '. This is causing several of your errors.

Once you have fixed all of those you should indent your code correctly so it is actually readable and not all in 1 big line. Then list the errors (not just the line numbers) you get after fixing all of the single quotes and we can continue from there.