当我抛出异常时会发生什么？ [英] What happens when I throw an exception?

问题描述

我有一些技术问题。在此函数中：

I have some technical questions. In this function:

string report() const {
    if(list.begin() == list.end()){
        throw "not good";
    }
    //do something
}

如果我扔例外情况是怎么回事？我的功能会终止还是会继续运行？如果终止，它将返回什么值？

If I throw the exception what is going on with the program? Will my function terminate or will it run further? If it terminates, what value will it return?

推荐答案

如果引发异常，则所有函数都将退回到该点在其中找到匹配类型 catch 的 try ... catch 块。如果未从try块内调用您的函数，则程序将以未处理的异常退出。

If you throw an exception, all functions will be exited back to the point where it finds a try...catch block with a matching catch type. If your function isn't called from within a try block, the program will exit with an unhandled exception.

签出 https://isocpp.org/wiki/faq/exceptions 了解更多信息。

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