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

I don't necessarily recommend this (it's more efficient to work with the number rather than converting it to a string), but it's easy and it works :)

#include 
#include 
#include 
#include 

#include 

int main()
{
    int n = 23984;
    std::string s = boost::lexical_cast(n);
    std::copy(s.begin(), s.end(), std::ostream_iterator(std::cout, "\n"));
    return 0;
}