IfSelfNULL.cpp

// IfSelfNULL.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

class CA
{
public:
	void sayHi()
	{
		if(this==NULL)
			printf("Hello World!\n");
		else
			printf("Hi!\n");
	}
};

int main(int argc, char* argv[])
{
	CA* pObjA=NULL;
	pObjA->sayHi();
	pObjA=new CA();
	pObjA->sayHi();
	delete pObjA;
	pObjA->sayHi();
	//printf("Hello World!\n");
	return 0;
}

/*
Hello World!
Hi!
Hi!
Press any key to continue
*/