c++ tic tac toe非整型字符导致无限循环

#include <iostream>

int main() {
    char board[3][3] = { {' ', ' ', ' '}, {' ', ' ', ' '}, {' ', ' ', ' '} };
    int row, col;
    char player = 'X';

    while (true) {
        // 打印棋盘
        // ...

        // 玩家输入行和列
        std::cout << "Player " << player << ", enter your move (row column): ";
        if (!(std::cin >> row >> col)) {
            // 输入验证失败，清空输入缓冲区并提示重新输入
            std::cin.clear();
            std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
            std::cout << "Invalid input. Please enter row and column as integers." << std::endl;
            continue;
        }

        // 检查输入是否在合法范围内
        if (row < 0 || row >= 3 || col < 0 || col >= 3) {
            std::cout << "Invalid move. Please enter row and column within range." << std::endl;
            continue;
        }

        // 检查该位置是否已经被占据
        if (board[row][col] != ' ') {
            std::cout << "Invalid move. That position is already occupied." << std::endl;
            continue;
        }

        // 更新棋盘
        board[row][col] = player;

        // 检查是否有玩家获胜或平局
        // ...

        // 切换玩家
        player = (player == 'X') ? 'O' : 'X';
    }

    return 0;
}