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The sub-thread and main thread cleanup'clean

Wu zhen hai (112)
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#include <iostream>
#include <thread>
#include <string>
struct A
{
	std::string message;
public:
	A(const std::string& m):message(m){}
	~A(){std::cout<<message<<std::endl;}
};
A a("123456");
int main()
{
	std::thread t([](){A a("6543321");while(true){}});
	t.detach();
	//std::cin.get();
	return 0;
}


//
Why is there not "654321" output when the programmer is over?

//I use the command window, the result as the following:



C:\Users\wzh\Documents\Visual Studio 2012\Projects\ConsoleApplication17\Release>test.exe
123456

C:\Users\wzh\Documents\Visual Studio 2012\Projects\ConsoleApplication17\Release>
coder777 (8444)
Because the thread does not end due to the while(true){}. It will be aborted at the end of main.
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