Exit processor for Java Shutdownhook in C + +

Recently learned CPP (as for why, refer to http://www.cnblogs.com/zhjh256/p/6321972.html), C + + standard library second Edition 5.8.2 section, found that C + + has a corresponding Java Shutdownhook the mechanism to exit the processor, atexit. You can invoke the registered function when you exit the program normally, as follows:

namespace Ns_demo {    void  printn ();     void terminatetest ();}

#include"stdafx.h"#include<iostream>#include"Ns.h"using namespacestd;voidNs_demo::p rintn () {cout<<1<<Endl;}voidns_demo::terminatetest () {cout<<"program is ending ..."<<Endl; System ("Pause");}

" Ns.h " using namespace std; #define Guid_lenint _tmain (int argc, _tchar* argv[]) {    atexit (ns_demo::terminatetest);    Atexit (ns_demo::terminatetest);}

The same processor is registered two times, it will exit when called two times, do not do a duplicate check, as follows:

Program is ending ... Please press any key to continue ... Program is ending ... Please press any key to continue ...

Exit processor for Java Shutdownhook in C + +