c++ 重写引用

[c++]代码库

#include <iostream>

using namespace std;

enum ERR_CODE {
	SUCCESS, ERROR
};

ERR_CODE Factor(int, int&, int&);

int main() {
	int number, squared, cubed;
	ERR_CODE result;

	cout << "Enter a number (0 - 20): ";
	cin >> number;

	result = Factor(number, squared, cubed);

	if (result == SUCCESS) {
		cout << "number: " << number << endl;
		cout << "square: " << squared << endl;
		cout << "cubed: " << cubed << endl;
	} else
		cout << "Error encountered!!" << endl;
	return 0;
}

ERR_CODE Factor(int n, int &rSquared, int &rCubed) {
	if (n > 20)
		return ERROR; // simple error code
	else {
		rSquared = n * n;
		rCubed = n * n * n;
		return SUCCESS;
	}
}