Write a calculator program using a do-while loop in c++ 2011

[Vuhelper]

Code:

#include <iostream> #include <string> using namespace std; int result; char sign; int value; int main() { result = 0; // Loop forever (or till we hit the break statement) do { cout << "Current value is " << result << '\n'; cout << "Please enter an operation +, -, *, / <'Q' to quit>: "; cin >> sign; cout << "Please enter a number: "; cin >> value; if (sign != '+' && sign != '-' && sign != '*' && sign != '/') { cout << "Unknown operator " << sign << '\n'; } else { if (sign = '+') { result += value; } else { if (sign = '-') { result -= value; } else { if (sign = '*') { result *= value; } else { if (sign = '/') { result /= value; } } } } } } while (1); return (0); }