將數組傳遞給功能以顯示井字游戲板

Question

我正在嘗試為一項家庭作業項目創建一個井字游戲，但是我一直不知道如何傳遞數組。 目前，我有這個：

原型：

void displayBoard(char);

變量：

const int COLS = 3;
const int ROWS = 3;
char board[ROWS][COLS] = {'*', '*', '*', '*', '*', '*', '*', '*', '*'};

函數調用：

displayBoard(board);

功能：

void displayBoard(char board)
{
    //DISPLAYBOARD displayBoard shows the current tic-tac-toe board
    //along with proper spacing

    cout << "---------------------" << endl << endl;
    cout << "     |     |     " << endl;
    cout << "  " << board[0][0] << "  |  " << board[0][1] << "  |  " << board[0][2] << endl;
    cout << "_____|_____|_____" << endl;
    cout << "     |     |     " << endl;
    cout << "  " << board[1][0] << "  |  " << board[1][1] << "  |  " << board[1][2] << endl;
    cout << "_____|_____|_____" << endl;
    cout << "     |     |     " << endl;
    cout << "  " << board[2][0] << "  |  " << board[2][1] << "  |  " << board[2][2] << endl;
    cout << "     |     |     " << endl;

}

我嘗試了將多維數組傳遞給函數displayBoard的幾種變體，但我不斷遇到諸如此類的錯誤：

'void displayBoard（char）'無法將參數1從'char [3] [3]'轉換為'char'，如果我將括號（）留空，我還會收到一條錯誤消息，提示“板未初始化” t，並且我不想使用全局變量。

Answer 1

原型應該是直覺的：

void displayBoard(const char (&board)[ROWS][COLS]);

使用std::array<std::array<char, 3u>, 3u>將具有更直觀的語法。

Answer 2

如果需要顯示不同大小的板，則可以將模板用於displayBoard方法：

template <int SizeX, int SizeY>
void displayBoard(const char (&board)[SizeX][SizeY])
{
    cout << "---------------------" << endl << endl;
    cout << "     |     |     " << endl;
    cout << "  " << board[0][0] << "  |  " << board[0][1] << "  |  " << board[0][2] << endl;
    cout << "_____|_____|_____" << endl;
    cout << "     |     |     " << endl;
    cout << "  " << board[1][0] << "  |  " << board[1][1] << "  |  " << board[1][2] << endl;
    cout << "_____|_____|_____" << endl;
    cout << "     |     |     " << endl;
    cout << "  " << board[2][0] << "  |  " << board[2][1] << "  |  " << board[2][2] << endl;
    cout << "     |     |     " << endl;

}

但是要小心，並始終檢查是否正在訪問數組中的現有索引