C++ examples for Data Type:Reference
Returning Values by Reference
#include <iostream> enum ERR_CODE { SUCCESS, ERROR }; ERR_CODE factor(int, int&, int&); int main() /*from w w w.j a v a2 s. c o m*/ { int number, squared, cubed; ERR_CODE result; std::cout << "Enter a number (0-20): "; std::cin >> number; result = factor(number, squared, cubed); if (result == SUCCESS) { std::cout << "number: " << number << "\n"; std::cout << "square: " << squared << "\n"; std::cout << "cubed: " << cubed << "\n"; } else { std::cout << "Error encountered!!\n"; } 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; } }