C++ get each digit in int

Question

I have an integer:

int iNums = 12476;

And now I want to get each digit from iNums as integer. Something like:

foreach(iNum          


        

Answer 1

Here is a more generic though recursive solution that yields a vector of digits:

void collect_digits(std::vector& digits, unsigned long num) {
    if (num > 9) {
        collect_digits(digits, num / 10);
    }
    digits.push_back(num % 10);
}

Being that there are is a relatively small number of digits, the recursion is neatly bounded.