在代码中捕获异常 [英] Catching exception in code

问题描述

我正在尝试这段代码来检查是否捕获了除零异常：

I was trying this piece of code to check whether the divide by zero exception is being caught:

int main(int argc, char* argv[])
{
    try
    {
      //Divide by zero
        int k = 0;
        int j = 8/k;
    }
    catch (...)
    {
        std::cout<<"Caught exception\n";
    }
    return 0;
}

当我使用VC6进行编译时，执行catch处理程序，输出为捕获异常。但是，当我使用VS2008进行编译时，该程序崩溃了，没有执行catch块。造成差异的原因可能是什么？

When I complied this using VC6, the catch handler was executed and the output was "Caught exception". However, when I compiled this using VS2008, the program crashed without executing the catch block. What could be the reason for the difference?

推荐答案

在项目->属性->配置属性-> c下启用结构化异常处理/ c ++->代码生成->启用c ++异常。

Enable structured exception handling under project -> properties -> configuration properties -> c/c++ -> code generation -> enable c++ exceptions.

请尝试一下。理想情况下，使用一个检查异常代码的过滤器，然后在希望捕获时返回常量信令。我在这里略过了，但我建议您在此处作为过滤器示例。

Use a try except. Ideally with a filter that checks the exception code then returns the constant signalling if it would like to catch. I have skipped that out here but I recommend you see here for examples of the filter.

#include <iostream>
#include <windows.h>

int main(int argc, char* argv[])
{
    __try
    {
        //Divide by zero
        int k = 0;
        int j = 8/k;
    }
    __except(EXCEPTION_EXECUTE_HANDLER)
    {
        if(GetExceptionCode()==EXCEPTION_INT_DIVIDE_BY_ZERO)
            std::cout << "Caught int divison exception\n";
        else
            std::cout << "Caught exception\n";

        system("pause");
    }
    return 0;
}

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