throw后局部变量的析构。

 

// test.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include <cstdlib>
#include <new>
#include <iostream>  
#include <string>  

using namespace std;  


class object
{
public:
	~object()
	{
		cout<<"~object()"<<endl;
	}
	object()
	{
		cout<<"object()"<<endl;
	}
protected:
private:
};

int f()
{
	object obj;
	cout<<"f()"<<endl;
	throw 0xffff;
	cout<<"throwed"<<endl;
	return 1;
}

int main() { 
	try
	{
		f();
		cout<<"end f()"<<endl;
	}
	catch (int x)
	{
		cout<<x<<endl;
	}
	getchar();
}   

程序输出：

object()
f()
~object()
65535

 

main函数改成如下之后：

 

int main() { 

	f();
	cout<<"end f()"<<endl;

	getchar();
} 

提示有未处理的异常，“继续”之后的输出为：

object()
f()
throwed
~object()
end f()

 

也就是说在函数f() throw异常之后跳出f()时，局部变量进行了析构。

 

实际运行后一个main生成的exe。将会在throw之后停止运行。并显示：

This application has requested the Runtime to terminate it in an unusual way.

Please contact the application's support team for more information.