07d3.cpp

C++ interview materials. Very helpful for interview. Including Answer.

/*
NIIT 《C++ & CGI PROGRAMMING &SCRRIPTING》 Skill Base
教材P7.13	7.D.3
审核：周永 [e-mail]	23:54 2004-10-18
测试环境：Microsoft Windowsn 2000(VC++)；Red Hat Linux 7.3；Red Hat Linux 9.0
*/

#include <iostream>
using namespace std;

class Number
{
private:
	int number;
public:
	Number (int = 0);
	Number operator++ ();
	Number operator++ (int);
	void display();
};
Number::Number(int num)
{
	number=num;
}
Number Number::operator++ ()
{
	Number temp;
	number=number+1;
	temp.number=number;
	return temp;
}
Number Number::operator++ (int)
{
	Number temp;
	temp.number=number;
	number=number+1;
	return temp;
}
void Number::display()
{
	cout <<number <<endl;
}

int main()
{
	Number num1(100);
	Number num2;

	num2=num1++;
	//num2=num1.operator ++(0);
	num1.display();
	num2.display();

	num2=++num1;
	//num2=num1.operator ++();
	num1.display();
	num2.display();

  return 0;
}