函数try块。一个有趣的例子 [英] function try block. An interesting example

问题描述

考虑下面的C ++程序

Consider the following C++ program

struct str
{
       int mem;
       str()
       try
          :mem(0)
       {
               throw 0;
       }
       catch(...)
       {
       }
};

int main()
{
       str inst;
}

catch块工作，即控件到达它，然后程序崩溃。

The catch block works, i.e. the control reaches it, and then the program crashes. I can't understand what's wrong with it.

推荐答案

一旦控件到达函数try-catch的catch块的末尾，块的构造函数，异常被自动抛出。因为你不在main（）中进一步捕获它，所以调用terminate（）。
这是一个有趣的阅读： http://www.drdobbs.com/184401316

Once the control reaches the end of the catch block of function-try-block of a constructor, the exception is automatically rethrown. As you don't catch it further in main(), terminate() is called. Here is an interesting reading: http://www.drdobbs.com/184401316

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