How do I split an int into its digits?

Question

How can I split an int in c++ to its single numbers? For example, I\'d like to split 23 to 2 and 3.

Answer 1

Based on icecrime's answer I wrote this function

std::vector intToDigits(int num_)
{
    std::vector ret;
    string iStr = to_string(num_);

    for (int i = iStr.size() - 1; i >= 0; --i)
    {
        int units = pow(10, i);
        int digit = num_ / units % 10;
        ret.push_back(digit);
    }   

    return ret;
}