如何解析包含整数的字符串并检查是否大于c++中的最大值

#include <iostream>
#include <stdexcept>

int main() {
    std::string str = "12345";
    try {
        int num = std::stoi(str);
        std::cout << "The parsed number is: " << num << std::endl;
    }
    catch (const std::invalid_argument& e) {
        std::cerr << "Invalid argument: " << e.what() << std::endl;
    }
    return 0;
}

The parsed number is: 12345

#include <iostream>
#include <limits>

int main() {
    int maxVal = std::numeric_limits<int>::max();
    std::cout << "The maximum value of int in C++ is: " << maxVal << std::endl;
    return 0;
}

The maximum value of int in C++ is: 2147483647

#include <iostream>
#include <limits>
#include <stdexcept>

int main() {
    std::string str = "1234567890";
    try {
        int num = std::stoi(str);
        int maxVal = std::numeric_limits<int>::max();
        if (num > maxVal) {
            std::cout << "The parsed number is greater than the maximum value in C++." << std::endl;
        }
        else {
            std::cout << "The parsed number is not greater than the maximum value in C++." << std::endl;
        }
    }
    catch (const std::invalid_argument& e) {
        std::cerr << "Invalid argument: " << e.what() << std::endl;
    }
    return 0;
}

The parsed number is greater than the maximum value in C++.