Question

I want to right a function that would compare two ISO 6801 time stamps and return the most recent one. I’m having trouble figuring out an easy way to create a function

For example Given string s1 = 2012-10-10 09:42:00; and string s2 = 2012-10-10 09:52:00;

compare_timestamp(s1,s2) would return s2

Answer 1

If you juste need to find the more recent, a string comparison is sufficent.

string &compare_timestamp(string &s1, string &s2) {
    return s1.compare(s2) > 0 ? s1 : s2;
}