CL未知错误

Question

我在VSC中用C++编写了一个简单的代码，当我编译它时，cl会给我一些错误，即使它编译得很好。代码是：

​

#include <iostream>


int main()
{   
    //  Print welcome messages to the terminal
    std::cout << "You are a secret agent breaking into a secure server room\n";
    std::cout << "You need to enter the correct codes to continue..." << std::endl;

    //Declare 3 number code
    const int CodeA = 4;
    const int CodeB = 3;
    const int CodeC = 2;

    
    const int CodeSum = CodeA + CodeB + CodeC;
    const int CodeProduct = CodeA * CodeB * CodeC;

    // Print sum and product to the terminal
    std::cout << std::endl;
    std::cout << "+ There are 3 numbers in the code" << std::endl;
    std::cout << "+ The codes add-up to: " << CodeSum << std::endl;
    std::cout << "+ The code multiply to give: " << CodeProduct << std::endl << std::endl;

    int GuessA, GuessB, GuessC;
    std::cin >> GuessA;
    std::cin >> GuessB;
    std::cin >> GuessC;
    std::cout << "You entered: " << GuessA << GuessB << GuessC << std::endl;

    return 0;
}

​

我得到的错误消息是：

C：\ Studio\2019\Community\VC\Tools\MSVC\14.29.30037\include\ostream(284)：Files (x86)\Microsoft Visual Program warning C4530:使用了C++异常处理程序，但未启用展开语义。指定/EHsc

C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30037\include\ostream(269)：注意:编译类模板成员函数'std::basic_ostream &std::basic_ostream::operator <<(X86)‘时

triplex.cpp(22)：注意:参见对正在编译的函数模板实例化'std::basic_ostream &std::basic_ostream::operator <<(int)‘的引用

triplex.cpp(7)：注意:参见对正在编译的类模板实例化'std::basic_ostream‘的引用

有人能给我解释一下这些是什么吗？提前感谢！

Answer 1

这只是一个警告，它会告诉你这一点：exception handler used, but unwind semantics are not enabled. Specify /EHsc。如果您在project properties->c/c++->Code generation->enable c++ exceptions下将其设置为Yes (/EHsc)(实际上它应该是默认值)，那么您就可以运行了。