Easiest way to convert int to string in C++

Question

What is the easiest way to convert from int to equivalent string in C++. I am aware of two methods. Is there any easier way?

(1)

Answer 1

string number_to_string(int x) {

    if (!x)
        return "0";

    string s, s2;
    while(x) {
        s.push_back(x%10 + '0');
        x /= 10;
    }
    reverse(s.begin(), s.end());
    return s;
}